| 通量差分分裂上风差分格式求解船舶粘性流动 |
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| 引用本文： | 沈奇心,蔡荣泉,陈义根,陈作钢.通量差分分裂上风差分格式求解船舶粘性流动[J].水动力学研究与进展(A辑),1996(4). |
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| 作者姓名： | 沈奇心 蔡荣泉 陈义根 陈作钢 |
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| 作者单位： | 中船总公司第七０八研究所五室 |
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| 摘 要： | 本文阐述了采用人工可压缩方法计算不可压缩粘性流体的流动问题。对一般曲线坐标系下的流动控制方程采用了通量差分分裂上风差分格式和二阶中心差分格式离散。在隐式求解格式下，代数方程组用线松弛方法求解。本文计算了Ｍ维圆柱绕流和Ｗｉｇｌｅｙ船的绕流问题，计算结果同试验相当吻合，这说明本文所采用的方法是处理不可压缩流动的可靠方法。
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| 关 键 词： | 通量，差分方程，三维流动，数值计算 |
Solution of Viscous Flow around Ship by Using Flux-difference Splitting Upwind Difference Scheme |
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| Shen Qi-xin,Cat yong-quan,Chen Yi-gen,Chen Zuo-gang.Solution of Viscous Flow around Ship by Using Flux-difference Splitting Upwind Difference Scheme[J].Journal of Hydrodynamics,1996(4). |
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| Authors: | Shen Qi-xin Cat yong-quan Chen Yi-gen Chen Zuo-gang |
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| Abstract: | A numerical method for simulation of incompressible viscous flow is presented in this paper by using the method of artificial compressibility. In arbitrary curve coordinates flux difference splitting upwind differential scheme are adopted to discrete the convective term and second order central differential scheme are applied to discrete the diffusion term. the governing equations are solved by implicit algorism and a line relaxation method is used to solve the algebraical equations. calculated results about the flows around two-dimension cylinder and Wigley mathematical form are in good agreement with the experimental results. It proves this method in this paper is liable and efficient to investigate incompressible viscous flow |
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| Keywords: | flux difference equation three dimension flow numerical computation |
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