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arXiv math/0201308math.NAcs.NA
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不可压缩流动的有限体积方法

Finite volume methods for incompressible flow

Darryl Whitlow

AI总结:

本文提出两种有限体积方法(单元中心一阶格式与顶点中心最小二乘二阶格式),分别用于求解翼型无粘流和平板边界层问题,并展望了未来改进方向。

摘要:

推导了两种有限体积方法,并将其应用于不可压缩流动问题的求解。特别地,研究了外部无粘流和边界层流。分析的第一种方法是单元中心有限体积格式。该方法在等边三角形上被证明具有一阶精度,并用于计算翼型上的无粘流动。第二种方法是顶点中心最小二乘法,具有二阶精度。针对几种无粘流动问题以及求解平板上普朗特边界层方程,考察了该方法的性能。讨论了该方法未来的改进和扩展方向。

英文摘要:

Two finite volume methods are derived and applied to the solution of problems of incompressible flow. In particular, external inviscid flows and boundary-layer flows are examined. The firstmethod analyzed is a cell-centered finite volume scheme. It is shown to be formally first order accurate on equilateral triangles and used to calculate inviscid flow over an airfoil. The second method is a vertex-centered least-squares method and is second order accurate. It's quality is investigated for several types of inviscid flow problems and to solve Prandtl's boundary-layer equations over a flat plate. Future improvements and extensions of the method are discussed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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