Analog simulation method and device for automobile aerodynamic performance and computer storage medium

Abstract

The embodiment of the invention discloses an analog simulation method and device for automobile aerodynamic performance and a computer storage medium, and belongs to the technical field of analog simulation. The method comprises the steps that a whole vehicle model of an automobile is set up in an Alar application program, a wind field model is set up in a Matlab application program, the whole vehicle model is set up according to a solid structure of the automobile, and the wind field model is used for simulating airflow blowing to the whole vehicle model; the whole vehicle model and the wind field model are associated in the Matlab application program, and a joint simulation model is obtained; and according to the joint simulation model, carrying out analog simulation on the aerodynamic performance of the automobile. According to the embodiment of the invention, the air flow blown to the whole vehicle model can be simulated through the wind field model, and the track change and inflow angle change of the vehicle in the wind field can be simulated through the whole vehicle model, so that bidirectional coupling of the vehicle and the air flow is realized, and the reliability of aerodynamic simulation of the vehicle is improved.

Description

technical field [0001] The embodiments of the present application relate to the technical field of simulation, and in particular to a method, device and computer storage medium for simulation of automobile aerodynamics. Background technique [0002] With the development of automobile technology, people pay more and more attention to automobile comfort and handling stability. Among them, the aerodynamics of the car affect the performance of the car, and then affect the operating stability of the car. Therefore, in order to determine the operating stability of the car, it is usually necessary to analyze the aerodynamics of the car. [0003] At present, the aerodynamic analysis of automobiles is based on the vehicle shape parameters to calculate and optimize the drag coefficient, lift coefficient, lateral force coefficient, roll moment coefficient, pitch moment coefficient and yaw moment coefficient. [0004] However, since the optimization is only calculated by the car's styl...

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Problems solved by technology

[0005] The embodiment of the present application provides a simulation method, device, and computer storage medium for automobile aerodynamics, which can solve the problem that the aerodynamic test cannot be carried out on a real vehicle in the related art, resulting in unclear influence of automobile shape on the operation stability of the automobile. question

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