报告题目: |
Some Inverse Heat Transfer Problems |
报告人: |
SU Jian 苏健 |
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Dr. Nuclear Engineering Program
巴西里约热内卢联邦大学
（Federal University of Rio Janeiro）
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报告时间: |
2009-01-19 10:00 |
报告地点: |
热能系馆报告厅 |
主办单位: |
热能系 |
简介: |
Summary
Inverse heat transfer problems have been studied extensively for estimation of
unknown boundary or initial conditions, thermophysical properties, heat source
strength, and geometrical configuration. A variety of numerical and analytical
techniques have been employed for the solution of the inverse heat transfer problems.
The conjugate gradient method with an adjoint equation, also called the Alifanov's
iterative regularization method, belongs to a class of iterative regularization
techniques. With a suitably defined stopping criterion, the number of iterations of the
estimation procedure is determined so that stable solutions are obtained for the inverse
problem. The method consists in choosing at each iteration a suitable direction of
descent and a search step size along this direction, for the determination of the
objective functional. Several examples will be shown to detail the application of the
Alifanov’s iterative regularization method for estimation of heat source strength and
heat transfer coefficient. Simultaneous estimation of unknown inlet temperature and
wall heat flux by Levenberg-Marquardt algorithm will be also discussed.
About the Speaker
Dr. SU Jian graduated in Engineering Thermophysics from the University of Science
and Technology of China (USTC), received his M.Sc in Engineering Thermophysics
at the Institute of Engineering Thermophysics, Chinese Academy of Sciences, and his
D.Sc. in Mechanical Engineering at the Federal University of Rio de Janeiro (UFRJ).
He is ssociate Professor at the Nuclear Engineering Program, Graduate School and
Research in Engineering (COPPE), Federal University of Rio de Janeiro. His research
interests include issues related to fundamentals of thermodynamics, fluid mechanics,
and heat transfer, multiphase systems, nuclear reactor thermal-hydraulics,
turbomachinery aerothermodynamics, and flow assurance of deepwater oil and gas
production. |
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