WO2009121986A1 - Aerodynamic thrust element - Google Patents

Aerodynamic thrust element Download PDF

Info

Publication number
WO2009121986A1
WO2009121986A1 PCT/ES2009/000168 ES2009000168W WO2009121986A1 WO 2009121986 A1 WO2009121986 A1 WO 2009121986A1 ES 2009000168 W ES2009000168 W ES 2009000168W WO 2009121986 A1 WO2009121986 A1 WO 2009121986A1
Authority
WO
WIPO (PCT)
Prior art keywords
zone
friction
fluid
advance
driving element
Prior art date
Application number
PCT/ES2009/000168
Other languages
Spanish (es)
French (fr)
Inventor
Ignacio SEGURA MECHÓ
Original Assignee
Segura Mecho Ignacio
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Segura Mecho Ignacio filed Critical Segura Mecho Ignacio
Publication of WO2009121986A1 publication Critical patent/WO2009121986A1/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D35/00Vehicle bodies characterised by streamlining
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/32Other means for varying the inherent hydrodynamic characteristics of hulls
    • B63B1/34Other means for varying the inherent hydrodynamic characteristics of hulls by reducing surface friction
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64CAEROPLANES; HELICOPTERS
    • B64C21/00Influencing air flow over aircraft surfaces by affecting boundary layer flow
    • B64C21/10Influencing air flow over aircraft surfaces by affecting boundary layer flow using other surface properties, e.g. roughness
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64CAEROPLANES; HELICOPTERS
    • B64C23/00Influencing air flow over aircraft surfaces, not otherwise provided for
    • B64C23/06Influencing air flow over aircraft surfaces, not otherwise provided for by generating vortices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15DFLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
    • F15D1/00Influencing flow of fluids
    • F15D1/10Influencing flow of fluids around bodies of solid material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64CAEROPLANES; HELICOPTERS
    • B64C3/00Wings
    • B64C3/10Shape of wings
    • B64C3/14Aerofoil profile
    • B64C2003/148Aerofoil profile comprising protuberances, e.g. for modifying boundary layer flow
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00Aeronautics or air transport
    • Y02T50/10Drag reduction
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T70/00Maritime or waterways transport
    • Y02T70/10Measures concerning design or construction of watercraft hulls

Definitions

  • the present invention refers to an aerodynamic driving element whose purpose is to provide a coating for a friction surface with a fluid such as air, water or other in order to reduce that friction and facilitate the advance by the fluid of the object to which that surface belongs, for which the invention provides a modular element that can be applied repetitively on surfaces subject to high degrees of aerodynamic friction, such as the surfaces of aerial, land vehicles or aquatic, to minimize the resistance to the advance that determines the fluid and to add some areas of thrust favorable to the direction of advance of the object that incorporates driving element of the invention.
  • the invention consists of an aerodynamic driving element intended to be placed on a friction surface with a fluid such as air, water or other, in order to reduce that friction and facilitate the advance through the fluid of the object to which that surface belongs.
  • each driving element has a convex outer surface frontal area and approximately triangular contour that connects through a depression zone with a concave outer surface area and approximately triangular contour, so that the total contour of the element has an approximate shape of rhombus and so that the depression zone allows to generate a turbulence of the fluid, in the advance of the element, which provides a thrust force favorable to the referred advance of the object.
  • said approximate rhombus shape has the edges corresponding to the curved-convex frontal zone, in so much so that the edges corresponding to the posterior area are curved-concave.
  • the driving element of the invention can be incorporated together with other equals as a coating of the friction surface and with a three-pin distribution, so that the front area of each element is adjusted between two rear zones of two other elements, while the rear area of each element is adjusted between two frontal areas of two other elements.
  • the aerodynamic driving element of the invention has relative advantages in that it reduces friction against a fluid on a surface that the driving element is placed, mainly due to the area of depression of the element that causes turbulence in the advance of the corresponding object through the fluid, facilitating this turbulence a favorable thrust to the advance of the object.
  • the invention has the advantages that it is simple to carry out and easy to apply on a wide variety of surfaces.
  • Figure 1. Represents a top plan view of an embodiment of the aerodynamic drive element of the present invention, showing a plurality of said elements placed on the treadmill on a friction surface with a fluid.
  • Figure 2. Represents a profile view according to the section indicated in the previous figure 1, showing the complete profile of one of the driving elements. DESCRIPTION OF AN EXAMPLE OF EMBODIMENT OF THE INVENTION Next, a description of an example of the invention is made with reference to the numbering adopted in the figures.
  • each driving element 1 of the present example has a front area 6 having an ascending profile, an approximately triangular contour and a convex outer surface, as seen in Figures 1 and 2.
  • That frontal zone 6 ends in an area of depression
  • the depression zone 3 connects in turn with a rear zone 2 which allows the flow of fluid to be released towards the next driving element 1.
  • the distribution of the driving elements 1 by the friction surface 5 with the fluid is a triplet distribution, as shown in Figure 1, so that the rear zones 2 are adjusted with the front zones 6 of other elements 1 .
  • each drive element 1 in the approximate rhombus shape of each drive element 1, the edges corresponding to the frontal zone 6 are curved-convex, while the edges corresponding to the posterior zone 2 are curved-concave, as appreciate in figure 1.
  • the size of the driving elements 1 may vary depending on the type of surface or vessel, ship or vehicle to be coated, it being possible to coat only certain parts subjected to greater friction in said vehicle.
  • the materials with which the driving element of the present example can be constructed can be conventional materials such as plastics, metals or others.
  • the adhesives for connecting the elements 1 to the friction surface 5 can also be conventional adhesives or adhesives. Another possibility of realization consists in the fact that the surface 5 itself has a face with similar reliefs to which a plurality of elements 1 distributed to the treadmill would be determined; without discarding other types of achievements.

Abstract

The invention relates to an aerodynamic thrust element which is positioned on a surface subject to friction with a fluid in order to reduce said friction. Each element (1) includes a front convex area (6) which has an approximately triangular profile and is connected via a depression area (3) to a rear concave area (2) also having an approximately triangular profile, the overall profile having an approximately rhombic shape. The aforementioned depression area (3) enables a turbulence to be generated in the fluid as the element (1) moves forward, which provides a thrust force that favours said forward movement.

Description

ELEMENTO IMPULSOR AERODINÁMICO OBJETO DE LA INVENCIÓN AERODYNAMIC DRIVING ELEMENT OBJECT OF THE INVENTION
La presente invención, tal y como se expresa en el enunciado de esta memoria descriptiva, se refiere a un elemento impulsor aerodinámico cuya finalidad consiste en proporcionar un recubrimiento para una superficie de fricción con un fluido tal como aire, agua u otro al objeto de reducir esa fricción y facilitar el avance por el fluido del objeto al que pertenece esa superficie, para lo cual la invención proporciona un elemento modular que puede aplicarse repetitivamente sobre superficies sujetas a elevados grados de fricción aerodinámica, tales como las superficies de vehículos aéreos, terrestres o acuáticos, para minimizar la resistencia al avance que determina el fluido y para añadir unas zonas de empuje favorables al sentido de avance del objeto que incorpora elemento impulsor de la invención.The present invention, as expressed in the statement of this specification, refers to an aerodynamic driving element whose purpose is to provide a coating for a friction surface with a fluid such as air, water or other in order to reduce that friction and facilitate the advance by the fluid of the object to which that surface belongs, for which the invention provides a modular element that can be applied repetitively on surfaces subject to high degrees of aerodynamic friction, such as the surfaces of aerial, land vehicles or aquatic, to minimize the resistance to the advance that determines the fluid and to add some areas of thrust favorable to the direction of advance of the object that incorporates driving element of the invention.
ANTECEDENTES DE LA INVENCIÓN Actualmente, se investiga el modo de minimizar la resistencia que determinadas superficies presentan al roce o fricción con determinados fluidos. Para ello se han desarrollado revestimientos o pinturas especiales con aplicación especial a cascos de embarcaciones de competición, como las empleadas en pruebas de vela o velocidad. También se aplican en aeronaves en las que se quiere obtener un elevado rendimiento por minimización de la fricción del aire. En el estado actual de la técnica se dan inconvenientes relativos a que hasta ahora no se ha conseguido una superficie que no solo minimice la fricción y por lo tanto la resistencia al avance sino que además genere un efecto de empuje tal como el que hacen determinados dispositivos aerodinámicos que se colocan en camiones o vehículos de gran tamaño para producir efectos de auto-avance y reducir el consumo de combustible, como por ejemplo los mostrados en la patente española con número de publicación 2.285.889 ó en la patente estadounidense 4.316.630. No conocemos en el estado actual de la técnica ningún elemento impulsor aerodinámico que facilite un recubrimiento en superficies de fricción con un fluido donde cada elemento presente una forma aproximada de rombo con una zona frontal convexa y una zona posterior cóncava, tal y como lo hace el elemento de la presente invención.BACKGROUND OF THE INVENTION Currently, we are investigating how to minimize the resistance that certain surfaces present to friction or friction with certain fluids. For this purpose, special coatings or paints have been developed with special application to racing boat hulls, such as those used in sailing or speed tests. They are also applied in aircraft in which high performance is desired by minimizing air friction. In the current state of the art, there are problems related to the fact that until now a surface has not been achieved that not only minimizes friction and therefore the resistance to advancement but also generates a thrust effect such as that made by certain devices aerodynamics that are placed in trucks or large vehicles to produce effects self-advance and reduce fuel consumption, such as those shown in the Spanish patent with publication number 2,285,889 or in the US patent 4,316,630. We do not know in the current state of the art any aerodynamic impeller element that facilitates a coating on friction surfaces with a fluid where each element has an approximate shape of a rhombus with a convex frontal zone and a concave posterior area, as does the element of the present invention.
DESCRIPCIÓN DE LA INVENCIÓNDESCRIPTION OF THE INVENTION
Para lograr los objetivos y evitar los inconvenientes indicados en anteriores apartados, la invención consiste en un elemento impulsor aerodinámico previsto para ser colocado sobre una superficie de fricción con un fluido tal como aire, agua u otro, al objeto de reducir esa fricción y facilitar el avance por el fluido del objeto al que pertenece esa superficie. Novedosamente, según la invención, cada elemento impulsor presenta una zona frontal de superficie exterior convexa y contorno aproximadamente triangular que conecta a través de una zona de depresión con una zona posterior de superficie exterior cóncava y contorno aproximadamente triangular, de manera que el contorno total del elemento tiene una forma aproximada de rombo y de manera que la zona de depresión permite generar una turbulencia del fluido, en el avance del elemento, que proporciona una fuerza de empuje favorable al referido avance del objeto.In order to achieve the objectives and avoid the inconveniences indicated in previous sections, the invention consists of an aerodynamic driving element intended to be placed on a friction surface with a fluid such as air, water or other, in order to reduce that friction and facilitate the advance through the fluid of the object to which that surface belongs. Novelly, according to the invention, each driving element has a convex outer surface frontal area and approximately triangular contour that connects through a depression zone with a concave outer surface area and approximately triangular contour, so that the total contour of the element has an approximate shape of rhombus and so that the depression zone allows to generate a turbulence of the fluid, in the advance of the element, which provides a thrust force favorable to the referred advance of the object.
Según la realización preferente de la invención, la referida forma aproximada de rombo presenta los bordes correspondientes a la zona frontal curvo-convexos, en tanto que los bordes correspondientes a la zona posterior son curvo-cóncavos .According to the preferred embodiment of the invention, said approximate rhombus shape has the edges corresponding to the curved-convex frontal zone, in so much so that the edges corresponding to the posterior area are curved-concave.
El elemento impulsor de la invención se puede incorporar junto con otros iguales a modo de recubrimiento de la superficie de fricción y con distribución de tresbolillo, de manera que la zona frontal de cada elemento queda ajustada entre dos zonas posteriores de otros dos elementos, mientras que la zona posterior de cada elemento queda ajustada entre dos zonas frontales de otros dos elementos.The driving element of the invention can be incorporated together with other equals as a coating of the friction surface and with a three-pin distribution, so that the front area of each element is adjusted between two rear zones of two other elements, while the rear area of each element is adjusted between two frontal areas of two other elements.
Con la estructura que se ha descrito, el elemento impulsor aerodinámico de la invención presenta ventajas relativas a que reduce la fricción contra un fluido en una superficie que se coloca el elemento impulsor, debido principalmente a la zona de depresión del elemento que provoca una turbulencia en el avance del correspondiente objeto por el fluido, facilitando esta turbulencia un empuje favorable al avance del objeto. Además, la invención presenta las ventajas de que es de sencilla realización y fácil aplicación en gran diversidad de superficies .With the structure described, the aerodynamic driving element of the invention has relative advantages in that it reduces friction against a fluid on a surface that the driving element is placed, mainly due to the area of depression of the element that causes turbulence in the advance of the corresponding object through the fluid, facilitating this turbulence a favorable thrust to the advance of the object. In addition, the invention has the advantages that it is simple to carry out and easy to apply on a wide variety of surfaces.
A continuación, para facilitar una mejor comprensión de esta memoria descriptiva y formando parte integrante de la misma, se acompañan unas figuras en las que con carácter ilustrativo y no limitativo se ha representado el objeto de la invención.Next, in order to facilitate a better understanding of this descriptive report and as an integral part thereof, some figures are attached in which the object of the invention has been shown as an illustrative and non-limiting nature.
BREVE DESCRIPCIÓN DE LAS FIGURASBRIEF DESCRIPTION OF THE FIGURES
Figura 1.- Representa una vista en planta superior de una realización del elemento impulsor aerodinámico de la presente invención, mostrándose una pluralidad de dichos elementos colocados al tresbolillo sobre una superficie de fricción con un fluido. Figura 2.- Representa una vista de perfil según la sección indicada en la anterior figura 1, mostrándose el perfil completo de uno de los elementos impulsores. DESCRIPCIÓN DE UN EJEMPLO DE REALIZACIÓN DE LA INVENCIÓN Seguidamente se realiza una descripción de un ejemplo de la invención haciendo referencia a la numeración adoptada en las figuras.Figure 1.- Represents a top plan view of an embodiment of the aerodynamic drive element of the present invention, showing a plurality of said elements placed on the treadmill on a friction surface with a fluid. Figure 2.- Represents a profile view according to the section indicated in the previous figure 1, showing the complete profile of one of the driving elements. DESCRIPTION OF AN EXAMPLE OF EMBODIMENT OF THE INVENTION Next, a description of an example of the invention is made with reference to the numbering adopted in the figures.
Así, cada elemento impulsor 1 del presente ejemplo dispone de una zona frontal 6 que tiene un perfil ascendente, un contorno aproximadamente triangular y una superficie exterior convexa, tal y como se aprecia en las figuras 1 y 2.Thus, each driving element 1 of the present example has a front area 6 having an ascending profile, an approximately triangular contour and a convex outer surface, as seen in Figures 1 and 2.
Esa zona frontal 6 finaliza en una zona de depresiónThat frontal zone 6 ends in an area of depression
3 o zona de turbulencia donde el fluido en el que se aplica el elemento impulsor 1 genera una fuerza de empuje3 or zone of turbulence where the fluid in which the impeller element 1 is applied generates a pushing force
4 en sentido favorable al avance del elemento 1 por el fluido, tal y como se aprecia en la figura 2.4 in the direction favorable to the advance of the element 1 through the fluid, as shown in Figure 2.
La zona de depresión 3 conecta a su vez con una zona posterior 2 que permite lanzar la corriente de fluido hacia el próximo elemento impulsor 1.The depression zone 3 connects in turn with a rear zone 2 which allows the flow of fluid to be released towards the next driving element 1.
La distribución de los elementos impulsores 1 por la superficie de fricción 5 con el fluido es una distribución al tresbolillo, tal y como se refleja en la figura 1, de manera que las zonas posteriores 2 quedan ajustadas con las zonas frontales 6 de otros elementos 1.The distribution of the driving elements 1 by the friction surface 5 with the fluid is a triplet distribution, as shown in Figure 1, so that the rear zones 2 are adjusted with the front zones 6 of other elements 1 .
En el presente ejemplo, en la forma aproximada de rombo que presenta cada elemento impulsor 1, los bordes correspondientes a la zona frontal 6 son curvo-convexos, mientras que los bordes correspondientes a la zona posterior 2 son curvo-cóncavos, tal y como se aprecia en la figura 1.In the present example, in the approximate rhombus shape of each drive element 1, the edges corresponding to the frontal zone 6 are curved-convex, while the edges corresponding to the posterior zone 2 are curved-concave, as appreciate in figure 1.
El tamaño de los elementos impulsores 1 puede variar en función del tipo de superficie o de embarcación, nave o vehículo que se desea recubrir, siendo posible revestir solamente determinadas partes sometidas a mayor fricción en dicho vehículo.The size of the driving elements 1 may vary depending on the type of surface or vessel, ship or vehicle to be coated, it being possible to coat only certain parts subjected to greater friction in said vehicle.
Por otra parte, los materiales con los que se puede construir el elemento impulsor del presente ejemplo pueden ser materiales convencionales tales como plásticos, metales u otros. Asimismo, los adhesivos para la conexión de los elementos 1 a la superficie de fricción 5 también pueden ser pegamentos o adhesivos convencionales. Otra posibilidad de realización, consiste en que la propia superficie 5 presente una cara con relieves análogos a los que determinarían una pluralidad de elementos 1 distribuidos al tresbolillo; sin descartarse otro tipo de realizaciones. On the other hand, the materials with which the driving element of the present example can be constructed can be conventional materials such as plastics, metals or others. Likewise, the adhesives for connecting the elements 1 to the friction surface 5 can also be conventional adhesives or adhesives. Another possibility of realization consists in the fact that the surface 5 itself has a face with similar reliefs to which a plurality of elements 1 distributed to the treadmill would be determined; without discarding other types of achievements.

Claims

REIVINDICACIONES
1.- ELEMENTO IMPULSOR AERODINÁMICOS, previsto para ser colocado sobre una superficie de fricción (5) con un fluido tal como aire, agua u otro, al objeto de reducir esa fricción y facilitar el avance por el fluido del objeto al que pertenece esa superficie (5) ; caracterizado porque cada elemento impulsor (1) presenta una zona frontal (6) de superficie exterior convexa y contorno aproximadamente triangular que conecta a través de una zona de depresión (3) con una zona posterior (2) de superficie exterior cóncava y contorno aproximadamente triangular, de manera que el contorno total del elemento (1) tiene una forma aproximada de rombo y de manera que la zona de depresión (3) permite generar una turbulencia del fluido, en el avance del elemento (1) , que proporciona una fuerza de empuje (4) favorable al referido avance del objeto.1.- AERODYNAMIC DRIVING ELEMENT, intended to be placed on a friction surface (5) with a fluid such as air, water or other, in order to reduce that friction and facilitate the advance of the object to which that surface belongs (5) ; characterized in that each driving element (1) has a front area (6) of convex outer surface and approximately triangular contour that connects through a depression zone (3) with a rear zone (2) of concave outer surface and approximately triangular contour , so that the total contour of the element (1) has an approximate shape of rhombus and so that the depression zone (3) allows to generate a turbulence of the fluid, in the advance of the element (1), which provides a force of thrust (4) favorable to the referred advance of the object.
2. -ELEMENTO IMPULSOR AERODINÁMICO, según la reivindicación 1, caracterizado porque en dicha forma aproximada de rombo los bordes correspondientes a la zona frontal (6) son curvo-convexos, en tanto que los bordes correspondientes a la zona posterior (2) son curvo- cóncavos .2. - AERODYNAMIC DRIVING ELEMENT, according to claim 1, characterized in that in said approximate form of rhombus the edges corresponding to the frontal zone (6) are curved-convex, while the edges corresponding to the posterior zone (2) are curved - concave.
3.- ELEMENTO IMPULSOR AERODINÁMICO, según la reivindicación 1 ó 2, caracterizado porque dicho elemento impulsor (1) se incorpora junto con otros iguales a modo de recubrimiento de la superficie de fricción (5) y con distribución de tresbolillo, de manera que la zona frontal (6) de cada elemento (1) queda ajustada entre dos zonas posteriores (2) de otros dos elementos (1) , mientras que la zona posterior (2) de cada elemento (1) queda ajustada entre dos zonas frontales (6) de otros dos elementos (1) 3.- AERODYNAMIC DRIVING ELEMENT, according to claim 1 or 2, characterized in that said impeller element (1) is incorporated together with other equals as a coating of the friction surface (5) and with a three-pin distribution, so that the front zone (6) of each element (1) is adjusted between two rear zones (2) of two other elements (1), while the rear zone (2) of each element (1) is adjusted between two frontal zones (6 ) of two other elements (1)
PCT/ES2009/000168 2008-03-31 2009-03-26 Aerodynamic thrust element WO2009121986A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ESP200800886 2008-03-31
ES200800886A ES2326356B1 (en) 2008-03-31 2008-03-31 AERODYNAMIC DRIVING ELEMENT.

Publications (1)

Publication Number Publication Date
WO2009121986A1 true WO2009121986A1 (en) 2009-10-08

Family

ID=41112754

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2009/000168 WO2009121986A1 (en) 2008-03-31 2009-03-26 Aerodynamic thrust element

Country Status (2)

Country Link
ES (1) ES2326356B1 (en)
WO (1) WO2009121986A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017134666A1 (en) * 2016-02-02 2017-08-10 Jsac Llc Method and cavity for suppression of cavity flow oscillations and acoustic loads using curved rear face

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB357637A (en) * 1930-06-27 1931-09-28 Peter Maurice Staunton Improvements in, or relating to ships, motor launches, and such like craft
US3578264A (en) * 1968-07-09 1971-05-11 Battelle Development Corp Boundary layer control of flow separation and heat exchange
FR2619069A1 (en) * 1987-08-03 1989-02-10 Weldon Thomas Motor vehicle equipped with aerodynamic means
WO2002064422A1 (en) * 2001-02-02 2002-08-22 Fobox As Recesses on a surface
EP1283163A2 (en) * 2001-08-10 2003-02-12 Airbus Deutschland GmbH Device for reducing fluidic friction drag

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB357637A (en) * 1930-06-27 1931-09-28 Peter Maurice Staunton Improvements in, or relating to ships, motor launches, and such like craft
US3578264A (en) * 1968-07-09 1971-05-11 Battelle Development Corp Boundary layer control of flow separation and heat exchange
US3578264B1 (en) * 1968-07-09 1991-11-19 Univ Michigan
FR2619069A1 (en) * 1987-08-03 1989-02-10 Weldon Thomas Motor vehicle equipped with aerodynamic means
WO2002064422A1 (en) * 2001-02-02 2002-08-22 Fobox As Recesses on a surface
EP1283163A2 (en) * 2001-08-10 2003-02-12 Airbus Deutschland GmbH Device for reducing fluidic friction drag

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017134666A1 (en) * 2016-02-02 2017-08-10 Jsac Llc Method and cavity for suppression of cavity flow oscillations and acoustic loads using curved rear face

Also Published As

Publication number Publication date
ES2326356B1 (en) 2010-07-13
ES2326356A1 (en) 2009-10-07

Similar Documents

Publication Publication Date Title
ES2564078T3 (en) Supersonic airplane
US7100867B2 (en) Lifting foil
ES2354612T3 (en) ADAPTABLE AND FLEXIBLE WING AND ROTOR SYSTEM.
JP5478517B2 (en) Shock bump array
CN101180208B (en) Apparatus, system and method for drag reduction
JPH0664592A (en) Omnidirectional propulsion type airship
WO2007129313A3 (en) Ducted fan vtol vehicles
ES2389608T3 (en) Shovel for a turbomachine
ES2273183T3 (en) AERODYNAMIC DEVICE FOR AN AUTOMOTIVE VEHICLE AND AUTOMOTIVE VEHICLE EQUIPPED WITH SUCH AERODYNAMIC DEVICE.
US20180265183A1 (en) Aerodynamic Devices for Enhancing Lift and Reducing Drag
JP5481394B2 (en) Shock bump
WO2010006770A3 (en) Aerodynamic flap and wing
US8464977B2 (en) Positive-pressure flying aircraft
WO2009121986A1 (en) Aerodynamic thrust element
DE202007005352U1 (en) Surface structure for use in outer shell of e.g. aeroplane, has recesses, troughs and/or craters, where surface of outer shell of vehicle is structured completely or partially with recesses, troughs or craters
ES2301359A1 (en) Sealing system for the gap existing between the fuselage and the elevator of an aircraft with orientable horizontal stabiliser
ES2323354B1 (en) AEROHIDRONAVE.
ES2724350T3 (en) Drag gate with flow intensifier for increased lift capacity
ES2684100T3 (en) Procedure to produce wallpaper with minimal side effects
Wang et al. Effect of thrust-vectoring jets on delta wing aerodynamics
Roos Microblowing-An effective, efficient method of vortex-asymmetry management
ES2289920B1 (en) DYNAMIC FLOW CONTRACTOR SYSTEM.
ES2742153T3 (en) Spoiler for surfboard comprising a support surface moved towards the rear
ES2340893B1 (en) PROCEDURE TO ACCELERATE MOBILE BODIES.
ES2298040B1 (en) AERODYNAMIC AND FLUIDODYNAMIC SURFACE.

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09727349

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 09727349

Country of ref document: EP

Kind code of ref document: A1