Finite difference schemes for solution of the nosetip shape change equation (Part II. Coupling calculation)

被引：0
|
作者：
Guo, Yi-Jun [1 ]
Tong, Fu-Lin [1 ]
Gui, Ye-Wei [1 ]
机构：
[1] China Aerodynamics Research and Development Center, Mianyang, Sichuan 621000, China
来源：
Kongqi Donglixue Xuebao/Acta Aerodynamica Sinica | 2010年 / 28卷 / 04期
关键词：
Numerical methods - Difference equations;
D O I：
暂无
中图分类号：
O24 [计算数学];
学科分类号：
070102 ;
摘要：
In this paper, the nosetip shape change equation were calculated by numerical method, with coupling of heat environment to shape change. It has been found that the shape change by coupling calculation have a great difference to that of uncoupling calculation. The effects of the artificial viscous term on the solution of the shape change finite difference equation were investigated. It is shown that the artificial viscous term could eliminate the spurious oscillations, but have a great influence on the accuracy of the final results. A new scheme which has properties of non-oscillatory and non-free-parameter dissipation was used to solve the nosetip shape change equation. It is shown that the new algorithm is efficient and robust.
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页码：441 / 445
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