Considering the characters of the viscoidal turbulent flow over high - speed train , the computing model of the outer fiow field for high - speed train has been established based on the incompressible fluid navier - stokes epuation and the turbulent model of ke two equations . the equation set of the flow field problem via finite element methods ( fem ) has been set up 根据高速列车粘性紊态绕流的特点，在较少简化的条件下以navier - stokes方程和-两方程紊流模型为基础，建立了高速列车外流场的计算模型，在近壁区域采用壁面函数修正紊流模型。
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