基于不同湍流模型的风洞风机流场数值模拟

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Wind tunnel test is one of the means to obtain relevant aerodynamic parameters, while the fan that can generate uniform flow field is of great importance to gain the outcome of test. It uses the computational fluid dynamics software STAR- CCM ＋ as a tool, takes a company equipment to builds two numerical simulations of flow field of integrative wind tunnel fan. According to the results of two simulations, it obtains a suitable turbulence model with the comparison of design parameters and verifies the rationality of product design风洞试验是获取空气动力相关参数的手段之一，而风机是风洞中产生均匀流场的风源，对试验结果有重要影响。以计算流体力学软件STAR―CCM＋为工具，以重庆某公司生产的一体化风洞风机为原型，运用数值模拟的方法，对该一体化风洞风机流场进行了仿真，并通过k―ε．k-ω2种湍流模型的对比分析，得出最适合的模拟方法，验证了设计的合理性。