Characterization of heat transfer during quenching by using optimization techniques

摘要

The estimation of thermal boundary conditions occurring during heat treatment processes is an essential requirement for characterization of heat transfer phenomena.In this work, the performance of five optimization techniques is studied.These models are the Conjugate Gradient Method, the Levenberg-Marquardt Method, the Simplex method, the NSGA Ⅱ algorithm and a hybrid approach based on the NSGA Ⅱ and Levenberg-Marquardt Method sequence.The models are used to estimate the heat transfer coefficient in 2D axis symmetrical case during transient heat transfer.The performance of the optimization methods is demonstrated using numerical experiments.