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Vortex generator based on FSAE racing car

A technology of vortex generators and racing cars, which is applied to the car body, car body stability, and vehicle components, etc. It can solve the problems of increasing the windward area and resistance of the car, and not being able to induce eddy currents, and achieve the effects of reducing flow separation, increasing strength, and reducing resistance.

Pending Publication Date: 2020-12-18
HEBEI UNIV OF TECH
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, according to the aerodynamic development situation of FSAE (Formula SAE) racing cars, the current technology used to delay flow separation is to place a diaphragm type vortex generator in the normal direction of an important aerodynamic surface, and use its sharp edge to induce the generation of vortex. Thereby delaying flow separation, but the existing vortex generators for racing cars cannot accurately induce vortices upstream of the stall point of the wing, which increases the windward area and drag of the car

Method used

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  • Vortex generator based on FSAE racing car
  • Vortex generator based on FSAE racing car
  • Vortex generator based on FSAE racing car

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Embodiment

[0030] Vortex generator is an aerodynamic accessory used for local flow control. Using its shape structure, vortex is formed at the edge and transmitted downstream. The vortex generator installed in FSAE racing car promotes the exchange of kinetic energy between the downstream boundary layer and the outside world. , Force the convection of the inner and outer layers of the flow near the wall to increase the ability of the flow to resist the reverse pressure gradient, and play a role in delaying the flow separation.

[0031] like Figure 5 As shown, the vortex generator body of the present invention is installed on the lower surface of the main wing of the front wing of the FSAE racing car, arranged in a horizontal parallel and equal spacing, and is longitudinally installed at 25mm upstream of the stall point on the lower surface of the front wing, and 6 vortex generators are installed on the main wings on both sides. , and the distance between the trailing edges of two adjacen...

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Abstract

The invention provides a vortex generator based on an FSAE racing car. The vortex generator comprises a vortex generator body, the vortex generator body comprises a first-stage vortex generator and asecond-stage vortex generator, the first-stage vortex generator is of a pentahedron structure, the first-stage vortex generator comprises an upper wedge-shaped plane, the upper wedge-shaped plane comprises a front-end straight line and two curved side edges connected with two end points of the front-end straight line, the free ends of the two curved side edges are arranged in an intersecting manner, a front windward side is perpendicularly arranged at the front-end straight line of the upper wedge-shaped plane, and curved side faces are perpendicularly arranged at the two curved side edges ofthe upper wedge-shaped plane; and the heights of the curved side surfaces are gradually increased from the front windward side backwards, and a lower wedge-shaped curved surface is arranged for connecting the front windward side and the curved side surfaces. The vortex generator has the advantages that the size is small, and effective vortexes can be induced at the upstream of a stall point of a wing.

Description

technical field [0001] The invention belongs to the technical field of fluid mechanics, in particular to a vortex generator based on an FSAE racing car. Background technique [0002] At present, according to the aerodynamic development situation of FSAE (Formula SAE) racing cars, the current technology used to delay flow separation is to place a baffle-type vortex generator in the normal direction of the important aerodynamic surface, and use its sharp edge to induce the occurrence of vortices. Therefore, the flow separation is delayed, but the existing vortex generators for racing cars cannot accurately induce eddy currents upstream of the stall point of the wing, which increases the windward area and drag of the racing car. SUMMARY OF THE INVENTION [0003] The problem to be solved by the present invention is to provide a vortex generator based on an FSAE racing car that is small in size and can induce effective vortices upstream of the stall point of the wing. [0004]...

Claims

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Application Information

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IPC IPC(8): B62D37/02
CPCB62D37/02
Inventor 胡程博李晨辉贾振东袁京泽张敏张小俊
Owner HEBEI UNIV OF TECH
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