Abstract: The Direct Numerical Simulation（DNS） of supersonic flow is meaningful to the aeronautics and astronautics sciences and technology.This paper introduced the common DNS method of supersonic flow over blunt cone,and improved the method with dynamic mesh technique.Numerical experiments confirmes the reliability and high efficiency of the new method.

Key words: DNS, dynamic mesh technique, supersonic flow, blunt cone

摘要： 超音速流场的直接数值模拟对航空航天事业的发展有着非常重要而深远的意义。论文针对钝锥这一典型研究对象,先介绍了超音速流数值模拟的经典计算方法,同时基于动网格技术,提出了一种改进的计算方法,并通过数值实验证明了该方法的可靠性和高效性。

关键词: 数值模拟, 动网格技术, 超声速流, 钝锥