期刊文献+

共轭梯度法求解多宗量瞬态热传导反问题 被引量:12

A Conjugate Gradient Method for Inverse Heat Conduction Problems with Multi-variables in Transient-state
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摘要  提出瞬态热传导反问题中热物性参数和边界条件多宗量反演的一般数值求解模式,导出了敏度计算公式,并用共轭梯度法求解,探讨了测点数目、测量误差和变量初值对反演结果的影响,并进行了数值验证. A general numerical model is presented to identify multi_variables,including thermal parameters and boundary conditions for inverse heat conduction problems in transient state.Sensitivity formulas are derived.A conjugate gradient technique is employed.The effects of the number of sample points,the data noise and initial guess on solutions are given.A numerical calculation is performed and discussed.
出处 《计算物理》 CSCD 北大核心 2005年第1期56-60,共5页 Chinese Journal of Computational Physics
基金 教育部重点基金[99149] 教育部骨干教师资助计划[2000 65] 工业装备结构分析国家重点实验室开放基金[GZ9814] 973项目NKBRSF[G1999032805] 重点基金[10032030] 辽宁省中青年学术带头人基金资助项目
关键词 多宗量 反问题 数值求解 共轭梯度法 初值 热传导 点数 数值验证 热物性参数 瞬态 heat conduction multi-variables inverse problems conjugate gradient method finite element
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参考文献11

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二级参考文献17

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