针对目前电动汽车动力电池组的散热问题,研究了不同布置方式下动力电池组的散热特性.基于雷诺平均的方法,应用k-ε湍流模型,建立了电动汽车动力电池组散热的仿真模型.基于这一经散热效果试验验证的模型的仿真结果,给出了不同布置方式下动力电池组的流场分布和温度云图；通过分析它们的温度均匀性,得到了不同布置方式下电池组的散热特性.%Aiming at the problem of heat dissipation of power battery pack in the present electric vehicle ( EV) , the heat dissipation characteristics of power battery pack with different arrangements are studied. A simulation model for the heat dissipation of power battery pack in CV is built based on k-e turbulent model with Reynolds-averaged Navier-Stokes method. The results of simulation on the model verified by heat dissipation test are shown in the flow field distribution and temperature nephograms in different battery arrangements. Through the analysis on their temperature homogeneity, the heat dissipation characteristics of power battery pack in different battery arrangements are obtained.
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