Vehicle model selection method based on high-speed train far-field noise high-precision simulation
A high-speed train with high noise technology, which is applied in the field of vehicle model selection based on high-precision simulation of high-speed train far-field noise, can solve problems such as unrealistic selection or optimization, and achieve avoidance of unreasonable attenuation, low numerical dissipation, and small Effect of grid size
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[0056] A vehicle type selection method based on high-precision simulation of far-field noise of high-speed trains. The method completes the optimal type selection of vehicle types according to the far-field noise simulation test results of different types of trains. The simulation method includes building a reasonable geometric model; Mesh conforming to the flow field characteristics of high-speed trains; setting appropriate boundary conditions; using effective turbulence models and numerical formats; determining appropriate far-field noise evaluation standards and other steps. The simulation method proposed by the invention can be applied to all high-speed train models, has high precision through test verification, and can realize accurate simulation of far-field noise, thereby providing a strong guarantee for vehicle model selection and accurate sequencing of optimization schemes.
[0057] Such as figure 1 As shown, the simulation method includes the following steps:
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