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本文着重讨论了MacCormack格式计算头部混合流场时出现的一些问题,当用不同的边界点算法与之配合时对计算稳定性的影响以及格式的稳定性在计算过程中的表现形式,比较了MacCormack格式与其他二阶格式的计算结果,在相同的边界算法的情况下各种格式的效能。本文也提出了一种新的物面边界的算法,其中用了特征概念,但又避免了传统特征线法的迭代过程。
This article focuses on the MacCormack format when calculating the head mixed flow field of some problems, when using different boundary point algorithm together with the impact on the stability of the calculation and the stability of the format in the calculation of the form of performance, compared The MacCormack format and other second-order format calculations result in various formats in the same case of the boundary algorithm. This paper also presents a new algorithm of object-surface boundary, which uses the concept of feature, but avoids the iterative process of traditional feature-line method.