Series perturbations approximate solutions to N-S equations and modification to asymptotic expansion matched method

被引：1
作者：
Li Da-ming
Zhang Hong-ping
Gao Yong-xiang
机构：
[1] Tianjin University,School of Civil Engineering
[2] Tianjin University,School of Machinery Engineering
来源：
Applied Mathematics and Mechanics | 2002年 / 23卷 / 8期
关键词：
asymptotic expansion matched method; series perturbation; N-S equation; viscous fluid flow past a sphere; O29; TB126;
D O I：
10.1007/BF02437802
中图分类号：
学科分类号：
摘要：
A method that series perturbations approximate solutions to N-S equations with boundary conditions was discussed and adopted. Then the method was proved in which the asymptotic solutions of viscous fluid flow past a sphere were deducted. By the ameliorative asymptotic expansion matched method, the matched functions are determined easily and the ameliorative curve of drag coefficient is coincident well with measured data in the case that Reynolds number is less than or equal to 40 000.
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页码：963 / 972
页数：9
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