[1]张柔雷,佘颖禾.有限元法求解暂态温度场中阶跃现象的分析[J].东南大学学报(自然科学版),1983,13(3):102-107.[doi:10.3969/j.issn.1001-0505.1983.03.012]
 Zhag Rou-lei,and Sheh Ying-ho.The Analysis of the "Oscillation" in the Solution of Transient Thermal Field Problems by the Finite Element Method[J].Journal of Southeast University (Natural Science Edition),1983,13(3):102-107.[doi:10.3969/j.issn.1001-0505.1983.03.012]
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有限元法求解暂态温度场中阶跃现象的分析()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
13
期数:
1983年第3期
页码:
102-107
栏目:
本刊信息
出版日期:
1983-09-20

文章信息/Info

Title:
The Analysis of the "Oscillation" in the Solution of Transient Thermal Field Problems by the Finite Element Method
作者:
张柔雷佘颖禾
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Author(s):
Zhag Rou-lei and Sheh Ying-ho
关键词:
暂态温度场 有限元法 时间单元 空间单元 阶跃 稳定性条件 初始条件 现象 物理性质 四节点
分类号:
+
DOI:
10.3969/j.issn.1001-0505.1983.03.012
摘要:
本文对用有限元法求解暂态温度场问题中时间单元(或步长)过小时出现的“阶跃”现象进行讨论,通过对导热物理性质以及时间单元与空间单元之间关系的分析,得到了针对这种阶跃现象的稳定性条件及相应的解决方法。
Abstract:
Based on the experience in the numerical analysis of transien heat conduction problems, a discussion is given of the unusual phenomenon "oscillation", which may occur in the numerical solutions of transient hermal field problems by the finite element method when adopting very small time element (or time step); and an analysis of tha physical properties and the rela ion between the elements in time and space domains is presented, followed by a special stability criterion for preventing the oscillation.

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更新日期/Last Update: 2013-05-01