Supercritical airfoil profile generation method and device, electronic equipment and storage medium

A supercritical and airfoil technology, applied in the aerospace field, can solve the problems of not being able to fully guarantee the smoothness of the airfoil, time-consuming, etc., and achieve the effects of reducing manual dependence, improving smoothness, and reducing the number of wind tunnel tests

Pending Publication Date: 2022-07-01
SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the disadvantage of this method is that it requires a large number of iterations, and the candidate airfoil generated by each iteration needs to be evaluated, so the optimization design process is very time-consuming, and this method cannot fully guarantee the smoothness of the airfoil

Method used

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  • Supercritical airfoil profile generation method and device, electronic equipment and storage medium
  • Supercritical airfoil profile generation method and device, electronic equipment and storage medium
  • Supercritical airfoil profile generation method and device, electronic equipment and storage medium

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Embodiment 1

[0030] Figure 1a This is a flow chart of a method for generating a supercritical airfoil provided in Embodiment 1 of the present invention. This embodiment can be applied to the situation of optimizing an existing aircraft airfoil to generate a new airfoil. type generation device, the device can be implemented by software and / or hardware, and the device can be integrated in electronic equipment such as a computer, such as Figure 1a As shown, the method specifically includes:

[0031] Step 110: Acquire the airfoil image, the CST parameters corresponding to the airfoil image, the flow field image, and the grid point information corresponding to the flow field image according to the reference airfoil, as training samples.

[0032] Among them, the reference airfoil can be used as a design reference for the supercritical airfoil. The airfoil image may be an image containing an aircraft airfoil, wherein the aircraft airfoil may be a supercritical airfoil. The flow field image may...

Embodiment 2

[0057] Figure 2a This is a flow chart of a method for generating a supercritical airfoil provided in the second embodiment of the present invention. This embodiment is a further refinement of the above technical solution, and the technical solution in this embodiment may be combined with each optional solution in one or more of the above embodiments. like Figure 2a As shown, the method includes:

[0058] Step 210 , using the CST parameterization method to obtain the CST parameters of the airfoil image.

[0059] Step 220: Acquire a flow field image including a plurality of grids corresponding to the airfoil image, wherein the grid of the flow field image includes grid point information.

[0060] In an optional implementation manner of the embodiment of the present invention, the grid point information includes the following information: abscissa, ordinate, flow velocity, normal velocity, and pressure.

[0061] Step 230: Use the airfoil image obtained from the reference ai...

Embodiment 3

[0081] image 3 It is a schematic structural diagram of a supercritical airfoil generating device provided in the third embodiment of the present invention. combine image 3 , the device includes: a training sample generation module 310 , a condition determination module 320 and a target supercritical airfoil acquisition module 330 . in:

[0082] The training sample generation module 310 is used to obtain the airfoil image, the class shape function transformation CST parameter corresponding to the airfoil image, the flow field image, and the grid point information corresponding to the flow field image according to the reference airfoil, as a training sample;

[0083] The condition determination module 320 is used to determine the experimental condition and performance evaluation of the supercritical airfoil, which are respectively used as the control condition and the optimization target of the conditional generative adversarial network model;

[0084] The target supercriti...

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Abstract

The embodiment of the invention discloses a supercritical airfoil profile generation method and device, electronic equipment and a storage medium. The method comprises the following steps: acquiring a basic airfoil profile image, a CST parameter corresponding to the airfoil profile image, a flow field image and grid point information corresponding to the flow field image according to a reference airfoil profile as training samples; experimental conditions and performance evaluation of the supercritical airfoil profile are determined and serve as control conditions and optimization targets of the conditional generative adversarial network model respectively; a conditional generative adversarial network model is generated through training of the training samples and the control conditions, and a target supercritical airfoil profile output by the conditional generative adversarial network model is obtained and optimized. According to the method, the airfoil design period can be shortened, the wind tunnel test frequency is reduced, the research and development cost is reduced, the manual dependence is reduced, and the airfoil smoothness is improved.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of aerospace, and in particular, to a method, device, electronic device and storage medium for generating a supercritical airfoil. Background technique [0002] With the development of aerospace technology, the requirements for the flight speed and safety of aircraft continue to increase. In aircraft design, the improvement of the engine is crucial, and the optimal design of the aircraft airfoil is also essential. A supercritical airfoil is a special airfoil used to increase the critical Mach number, which can delay the sharp increase in drag when the wing approaches the speed of sound. Compared with traditional airfoils, supercritical airfoils have better performance and are widely used in civil airliners, large transport aircraft and fighter jets. [0003] In the prior art, supercritical airfoils are often designed by an inverse design method or a surrogate model-based method. Amon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/27G06F30/15G06N3/04G06K9/62G06F111/04
CPCG06F30/27G06F30/15G06F2111/04G06N3/048G06N3/045G06F18/241
Inventor 程然何成林剑清张淼
Owner SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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