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三维流线上风方法
引用本文:周建华,顾宏中.三维流线上风方法[J].工程热物理学报,1998(6).
作者姓名:周建华  顾宏中
作者单位:上海交通大学动力与能源工程学院!上海,200030,上海交通大学动力与能源工程学院!上海,200030
摘    要:1引言在流场的数值模拟中,为了消除高雷诺数流动中数值的不稳定和非物理振荡,普遍采用能反映流动物理本质的上风方法。在有限元法中,上风法主要有三种表达形式:(1)采用有上风特性的权函数,如SUPG法山;你对流项和扩散项分别离散,对流项直接采用上游点作为积分点,如MonotoneStreamelineUpwind法[‘]及SkewedPositly,CoeficientUpwind法[’];由用特征法处理非定常的对流扩散方程,使其具有上风特性,采用传统的Galerkin法离散方程,如TaylorGalerkin法*。ttice及SchniPke门提出的一种流线上风方法能方便地应用于已有的…

关 键 词:有限元  计算流体力学  三维流场

A THREE DIMENSIONAL STREAMLINE UPWIND METHOD
ZHOU Jianhua,GU Hongzhong.A THREE DIMENSIONAL STREAMLINE UPWIND METHOD[J].Journal of Engineering Thermophysics,1998(6).
Authors:ZHOU Jianhua  GU Hongzhong
Institution:School of Power and Energy Shanghai Jiao Tong University Shanghai 200093
Abstract:A Three Dimensional Streamline Upwind Method for FEM to simulate fluids dynamicsis presented. By moving a plane untill the mass flows of two sides of it in an element areequal, it must be a streamplane. The interfering line of two streamplanes is a streamline.The illternal flow of a fan scroll is simulated with this method. The calculated result isprooved by that of measurement and visualization.
Keywords:finite element method  computational fluid dynamics  three dimensional flow
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