TY - JOUR
T1 - Inverse analysis for transient thermal load identification and application to aerodynamic heating on atmospheric reentry capsule
AU - Nakamura, Toshiya
AU - Kamimura, Yukihiro
AU - Igawa, Hirotaka
AU - Morino, Yoshiki
PY - 2014
Y1 - 2014
N2 - A transient inverse heat conduction analysis enables the identification of the unknown boundary heat flux from finite number of temperature data obtained, e.g., in the high temperature structural tests or in the actual operation. Since the prediction of thermal load (heat flux) is difficult, the inverse analysis is expected to improve structural design of high temperature components. The present study develops a computational method of transient inverse heat conduction analysis. The developed code is applied to problems of a simple two-dimensional plate and of an atmospheric reentry capsule. Sequential Function Specification (SFS) method and Truncated Singular Value Decomposition (TSVD) are employed to improve the stability of the inverse analysis. Effects of these regularization methods are numerically discussed.
AB - A transient inverse heat conduction analysis enables the identification of the unknown boundary heat flux from finite number of temperature data obtained, e.g., in the high temperature structural tests or in the actual operation. Since the prediction of thermal load (heat flux) is difficult, the inverse analysis is expected to improve structural design of high temperature components. The present study develops a computational method of transient inverse heat conduction analysis. The developed code is applied to problems of a simple two-dimensional plate and of an atmospheric reentry capsule. Sequential Function Specification (SFS) method and Truncated Singular Value Decomposition (TSVD) are employed to improve the stability of the inverse analysis. Effects of these regularization methods are numerically discussed.
KW - Pseudo-inverse matrix
KW - Reentry capsule
KW - Sequential function specification
KW - Transient inverse heat conduction analysis
KW - Truncated singular value decomposition
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U2 - 10.1016/j.ast.2014.07.015
DO - 10.1016/j.ast.2014.07.015
M3 - Article
AN - SCOPUS:84906717392
SN - 1270-9638
VL - 38
SP - 48
EP - 55
JO - Aerospace Science and Technology
JF - Aerospace Science and Technology
ER -