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Estimating Fluid Temperature of Pipe by Using Conjugate Gradient Method
Pages: 371-375
Year: Issue:  2
Journal: Journal of Engineering Thermophysics

Keyword:  transient heat conductionfinite elementconjugate gradient methodinverse problems;
Abstract: Based on the establishment of a two-dimensional transient heat transfer pipe model,the inverse problem is transformed into a positive question and optimization problem.The heat conduction problems can be solved by the finite element method.The fluid temperature of pipe is estimated by the conjugate gradient method,which makes use of the temperature of outer wall and the functional variational of the objective function.The accuracy and noise resistance of the method are verificated through a typical example.
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