原始变量定常Navier-Stokes的广义边界元方法(汪淳; 林志良; 樊涛)

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【作者】汪淳; 林志良; 樊涛 【作者单位】上海交通大学船舶海洋与建筑工程学院水利论文K%T Z\C,c j-M?/y3t

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g P*D])Z|&YY { G0【论文摘要】 本研究应用广义边界元方法求解了原始变量的、定常的 Navier-Stokes 方程。以驱动方腔流动为例,具体阐述了该方法的实施过程。得到了两种尺寸大小网格下的、雷诺数为100, 400,1000时的流场的高阶数值解。本研究的工作表明,与传统的边界元方法相比,广义边界元方法对于强非线性问题有更好的收敛性和计算效率,并且由于该方法是建立在原始变量的 Navier-Stokes 方程之上的,因此它也适用于三维黏性流动的数值模拟水利论文Jj.A]D4C3N F8\

dJk xP-N:p's3h0P0【英文论文摘要】 The present paper applied the General Boundary Element Method(GBEM)proposed by Liao and co-worker[3]-[5]to solve the Navier-Stokes equations in primitive variables.The GBEM has better convergence and higher efficiency than the traditional BEM,especially for those with strongly non-linearity.The viscous flow in a square cavity is employed as an example to illustrate the validity of this approach.水利论文%T+k:ZYX9FR _$?o

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【论文关键词】 广义边界元方法; 原始变量 Navier-Stokes 方程; 驱动方腔流动
+b!z&qeK(zPD%T2pfJ0【英文论文关键词】 General Boundary Element Method; primitive variables; driven cavity viscous flow
/Dte,_ z@j9~0【基金】国家自然科学基金的支持,基金号:50509016和50739004。
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TAG: 定常 林志良 汪淳 樊涛 变量
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