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钝体分离旋涡流动的区域分解、杂交数值模拟——Ⅰ.理论方法及其应用
凌国灿; 凌国平; 王运平
Source Publication中国科学A辑
1992
Issue1Pages:70-79
ISSN1006-9232
Abstract为克服涡旋法不能精确预计物体附近小尺度流动结构的理论缺陷,减少高Reynolds数流动N-S方程差分解的困难,本文提出一种区域分解、杂交耦合N-S方程有限差分解及涡旋法的新的数值模型和理论方法.将流场分解为内外两区,在靠近物体表面、范围为O(R)的内区进行N-S方程有限差分解,外区作Lagrange-Euler涡旋法解,建立了分区流动的联结、耦合条件,给出了杂交耦合求解的数值计算方法.用本方法作了Re=10~2,10~3的圆柱绕流计算,考察了区域交界面位置变化时解的稳定性.与全场N-S方程解及实验结果的比较表明本文方法能精确预计流动分离及近场流动的详细结构,并可有效地计算流动的总体特性,且比全场N-S方程解显著节省机时和计算量.
Keyword杂交耦合数值模似 区域分解 N-s方程有限差分 涡旋法 圆柱分离流
Language中文
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/35836
Collection力学所知识产出(1956-2008)
Corresponding Author凌国灿
Recommended Citation
GB/T 7714
凌国灿,凌国平,王运平. 钝体分离旋涡流动的区域分解、杂交数值模拟——Ⅰ.理论方法及其应用[J]. 中国科学A辑,1992,1,:70-79.
APA 凌国灿,凌国平,&王运平.(1992).钝体分离旋涡流动的区域分解、杂交数值模拟——Ⅰ.理论方法及其应用.中国科学A辑(1),70-79.
MLA 凌国灿,et al."钝体分离旋涡流动的区域分解、杂交数值模拟——Ⅰ.理论方法及其应用".中国科学A辑 .1(1992):70-79.
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