| 加权变系数的瞬态导热有限元法 |
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| 引用本文： | 杨汇涛,韩振兴.加权变系数的瞬态导热有限元法[J].航空动力学报,1997,12(1):95-97,111. |
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| 作者姓名： | 杨汇涛 韩振兴 |
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| 作者单位： | 4th Dept.Beijing University of Aeronautics and Astronautics, Beijing 100083 |
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| 摘 要： | 研究了两点时间差分格式的瞬态导热温度场有限元法数值解的稳定性和振荡现象,推导出消除振荡的方法:将时间差分格式的加权系数σ与时间步长△t分别和温度振荡联系起来,得出变σ和变△t的函数关系式。
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| 关 键 词： | 瞬态状况 导热性 有限元法 |
| 收稿时间： | 1/1/1996 12:00:00 AM |
| 修稿时间： | 5/1/1996 12:00:00 AM |
A FINITE ELEMENT ANALYSIS OF TRANSIENT HEAT CONDUCTION WITH WEIGHTED VARIABLE FACTOR |
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| Yang Huitao and Han Zengxin.A FINITE ELEMENT ANALYSIS OF TRANSIENT HEAT CONDUCTION WITH WEIGHTED VARIABLE FACTOR[J].Journal of Aerospace Power,1997,12(1):95-97,111. |
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| Authors: | Yang Huitao and Han Zengxin |
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| Institution: | 4th Dept.Beijing University of Aeronautics and Astronautics, Beijing 100083 |
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| Abstract: | The stability and oscillation of numerical finite element solution of transient conduction temperature field with two-point time deference scheme have been investigated.The weighted factor of the time diference scheme σ and the time step △t are correlated to the temperature oscillation respectively.Thus the functions of variable σ and △t are obtained.Its application demonstrates the simplicity in programming,high aecuracy and econmy of running time. |
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| Keywords: | Transient behaviour Heat conduction Finite element methods |
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