Application of an artificial compressibility methodology for the incompressible flow through a wavy channel
Application of an artificial compressibility methodology for the incompressible flow through a wavy channel
复制标题
人工压缩方法在波状通道不可压缩流动中的应用
DOI：
--
复制
发表时间：
1996
期刊：
影响因子：
--
通讯作者：
S. Tsangaris
中科院分区：
文献类型：
--
作者：
Ch. Kaliakatsos;A. Pentaris;D. Koutsouris;S. Tsangaris
本文研究不可压缩粘性层流通过波浪形通道的问题。采用近似因式分解技术的人工压缩性方法求解曲线非正交坐标系下的Navier-Stokes方程的速度-压力方程。所使用的物理域是一个波长的信道，其中适当的周期性条件被应用，以找到一个独立的入口效应的解决方案。流动分离观察高Re数和/或大的波幅的通道。观察惯性对速度分布的影响，并计算沿通道长度沿着的压力和剪切应力。
We consider the problem of laminar incompressible viscous flow through a wavy channel. An artificial compressibility method using the approximate factorization technique is applied to solve the velocity-pressure formulation of the Navier-Stokes equations written in curvilinear non-orthogonal coordinates. The physical domain used was one wavelength of the channel in which appropriate periodicity conditions were applied in order to find a solution independent of entry effects. Flow separation was observed for high Re numbers and/or large wave amplitudes of the channel. The effect of inertia to the velocity profiles was observed, and pressure and shear stress were calculated along the length of the channel.