旋风式精过滤器内流场模拟的若干问题

概述了固体燃气发生器中应用的旋风式精过滤器内流场模拟中的主要问题，包括其网格生成、湍流模拟、两相流模拟、边界条件及数值计算方法等。对于全面展开三维两相旋转湍流的内流场模拟有一定的参考价值。最后，结合固体推进剂燃气过滤的特点进行了简要讨论。

Some Problems of Inner Flowfield in Cyclone Dust Separators

Some major problems of the inner flowfield simulation for cyclone separator used in solid propellant gas generators including grid generation,turbulent simulation,two phase flow simulation,boundary conditions and numerical methods etc are summarized.The disussion in this field would be beneficial to the full development of simulation of the inner flowfield with three dimensional swirling turbulence and two phase flow.Finally,some characteristics about solid propellant gas filtration are discussed briefly.