A Three-Dimensional Inverse Heat Conduction Problem in Estimating Unknown Boundary Heat Flux

• Main Authors: Wang, Shao-Pei, 王紹培
• Other Authors: Huang C.H.
• Format: Others
• Language: zh-TW
• Published: 1998
• Online Access: http://ndltd.ncl.edu.tw/handle/82280892589654034521

碩士 === 國立成功大學 === 造船工程學系 === 86 === In the present study a three-dimensional transient inverse heat conductionproblem in solved using the Conjugate Gradient Method( CGM) and the generalpurpose commerical code CFX-4.2-baseed inverse algorithm to estimate the unknown boundary heat flux in any three-dimension irregular domain.The advantage of calling as a subroutine in the present inverse calculationlies in that many difficult but practial 3-D inverse problem can be solved under this construction.Results obtained by using the conjugate gradient method to solve this 3-Dinverse problems are justified based on the numerical experiments. It is cocluded the accurate boundary fluxes can be estimated by the conjugategradient methos except for the final time. The reason and improvement of this singularity are addressed. Finally, the effects of the measurementerrors on the inverse solution are discussed.