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Coupling Scheme for Continuum and Parallel DSMC Parts to a Numerical Solution of a Two-Dimensional Subsonic Problem

机译：连续耦合方案和并联DSMC零件的二维亚音问题的数值解

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摘要

It is considered an unsteady problem of the gap flow in the Winchester-type disc drives under transient conditions. By using for its solution a hybrid technique the coupling of DSMC simulation for the channel with a continuum solution for the flow around the magnetic head is realized as step-by-step approximation, which is verified to be converging. Special procedure for molecular velocity simulation of the incoming fluxes on the boundaries of these solution parts is developed. It is found that the molecular density before and after the channel differs markedly from the atmospheric one because of the slowing down of the flow by magnetic head. Thus previously much used atmospheric pressure boundary conditions are unreal. Space and time distributions of different flow parameters are obtained.
机译：它被认为是瞬态条件下的Winchester型盘驱动器中的间隙流的不稳定问题。通过使用其解决方案，混合技术对磁头周围流动的流量的通道的DSMC模拟的耦合被实现为逐步近似，验证为会聚。开发了这些溶液零件边界上的分子速度模拟的特殊程序。发现通道前后的分子密度与大气中的一个不同，因为由于磁头的流动减慢了流量。因此，先前使用的大气压边界条件是虚幻的。获得了不同流量参数的空间和时间分布。

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