| 换热反问题输入数据的正则预处理及其对解的影响 |
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| 引用本文： | 周静伟,李文军,程尚模,李希靖.换热反问题输入数据的正则预处理及其对解的影响[J].航空动力学报,1996,11(4):409-411,440. |
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| 作者姓名： | 周静伟 李文军 程尚模 李希靖 |
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| 作者单位： | Zhou Jingwei and Cheng Shangmo (Dept. of Power Eng.，Huazhong University of Science Technology，Wuhan 430074) Li Wenjun and Li Xijing (Engineering Thermophysics Lab.，China Institute of Metrology，Hangzhou 310034) |
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| 摘 要： | ＲＥＧＵＬＡＲＩＺＡＴＩＯＮＰＲＯＣＥＳＳＩＮＧＯＦＩＮＰＵＴＤＡＴＡＩＮＩＮＶＥＲＳＥＨＥＡＴＴＲＡＮＳＦＥＲＰＲＯＢＬＥＭＡＮＤＩＴＳＩＮＦＬＵＥＮＣＥＯＮＴＨＥＳＯＬＵＴＩＯＮＺｈｏｕＪｉｎｇｗｅｉａｎｄＣｈｅｎｇＳｈａｎｇｍｏ（Ｄｅｐｔ．ｏｆ...
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| 关 键 词： | 换热 正则化 精度 稳定性 |
| 收稿时间： | 9/1/1995 12:00:00 AM |
| 修稿时间： | 2/1/1996 12:00:00 AM |
REGULARIZATION PROCESSING OF INPUT DATA IN INVERSE HEAT TRANSFER PROBLEM AND ITS INFLUENCE ON THE SOLUTION |
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| Zhou Jingwei,Cheng Shangmo,Li Wenjun and Li Xijing.REGULARIZATION PROCESSING OF INPUT DATA IN INVERSE HEAT TRANSFER PROBLEM AND ITS INFLUENCE ON THE SOLUTION[J].Journal of Aerospace Power,1996,11(4):409-411,440. |
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| Authors: | Zhou Jingwei Cheng Shangmo Li Wenjun and Li Xijing |
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| Institution: | Dept. of Power Eng.,Huazhong University of Science Technology,Wuhan 430074;Dept. of Power Eng.,Huazhong University of Science Technology,Wuhan 430074;Engineering Thermophysics Lab.,China Institute of Metrology, Hangzhou 310034;Engineering Thermophysics Lab.,China Institute of Metrology, Hangzhou 310034 |
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| Abstract: | The major difficulty of the inverse problem lies in the fact that its solution does not depend continuously on the data and therefore is ill-posed.Based on Tikhonov's regularization method,a numerical procedure is provided for processing the input data in the inverse heat transfer problem,so that a uniform approximation is obtained both for the data function and its derivative.The effectiveness of the methods illustrated through simulated experiments using inexact data.The results demonstrate that the accuracy and stability of the inverse problem solution are significantly improved.The influence of the time step and the regularization parameter is also investigated.In addition,it is also shown that such a regularizing smooth procedure is obviously superior to the ordinary least square approximate method. |
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| Keywords: | Heat transfer Regularization Precision Stability |
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