摘要
流体力学是航空、航天技术发展的基础,而可压流体绕流又是流体力学的一个典型问题。在二维空间中讨论可压流体圆柱绕流时速度的变化情况。首先,对具体的问题进行分析,建立数学模型(N—S方程);其次,对二维求解域进行网格剖分,在此网格图中用向后有限差分法离散微分方程,得到有关速度的方程组。最后,用Jacobi迭代法求解线性方程组,并通过C程序来实现Jacobi迭代的求解过程,把所得结果用图表示出来。
Fluid mechanics is the demand of aviation and aerospace development,but compressible air flow around the column is a typical problem of fluid mechanics. This paper studies the speed change of compressible air flow around the column in the planar space. Firstly, it establishes a mathematics model （N-S equation）. Secondly, it divides the planar space district, dispersing differential equation with backwards finite difference method in the grid plan, and finding equation group about the speed. Then it solves linear equation group with Jacobi iteration. Finally, it carries out the Jaoobi iterative process with C program, showing outcome with graph.
出处
《重庆科技学院学报（自然科学版）》
CAS
2009年第1期155-157,共3页
Journal of Chongqing University of Science and Technology：Natural Sciences Edition
关键词
可压流体
园柱绕流
差分法
算法模拟
compressible flow
flow aroude column
difference
nnumerical simulation
