Direct simulation Monte-Carlo method application to the problem of dilute gas flows

The problem of direct numerical simulation of dilute gas flow by Monte-Carlo method is considered. The results of numerical solution of two problems (the flow past flat plate and the free stream) are obtained. When the flow past flat plate is considered, the nearest to the boundary flow involves to the motion only neighboring unmoved layer. When the free stream is considered, the involving to the motion nearest to stream layer isn’t happened. It is shown, that nearest layers in dilute gas weak affects each other.