AUTO UP-WIND AND SKEW UP-WIND NUMERICAL SOLUTION OF 3D CONVECTION-DIFFUSION EQUATION UNDER HIGH REYNODS NUMBER

摘要：

The convective item of 3D convection-diffusion equation is difficult to handle at high Reynolds number. Auto up-wind and skew up-wind are kept by adopting standard twenty-seven points scheme. Meanwhile, the contribution of comer points is calculated. When u, v and w equal to 1, the irrational condition that one comer point gains absolute advantages is not formed. While u is not equal to v, the primary flow direction, velocity and weight coefficient can be obtained respectively in this paper. Weight coefficient is changed from 6 points and 18 points to 26 points. This paper computes the coefficients of 26 points of 3D example and compares this method with Finite Analytic method (FAM). It can be used on all kinds of occasions of fluid-flow.

关键词： convection and diffusion auto up-wind skew up-wind high Reynolds number

作者: Minquan Feng Bangmin Zheng

作者单位: Key Laboratory of Northwest Water Resources and Environmental Ecology of Education Ministry, Xian U Institute of Water Conservancy and Hydroelectric Power, Wuhan University, China

会议类型: 国际会议

会议名称: 第16届亚太地区国际水利学大会暨第3届水工水力学国际研讨会(16th IAHR-APD Congress and 3rd Symoposium of IAHR-ISHS)

会议地点: 南京

会议语种:英文

页码: 1773-1777

在线出版日期: 2008-10-20（万方平台首次上网日期，不代表论文的发表时间）