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HYBRID EXPERIMENTAL-NUMERICAL APPROACH TO SOLVE INVERSE CONVECTION PROBLEMS

Joseph R. VanderVeer
Teledyne Energy Systems, Inc., Hunt Valley, MD, 21031

Yogesh Jaluria
Department of Mechanical and Aerospace Engineering Rutgers, The State University of New Jersey Piscataway, NJ 08854, USA

要約

A methodology is developed to utilize both experimental and numerical information in solving inverse convection problems. The method used combines an empirical relationship with a regularization scheme. The method is applied to a plume generated by an electrically heated copper block set within a small wind tunnel to provide cross flow. This approach attempts to solve for, within acceptable error, the source location and source temperature, which are not known a priori. A key factor in practicality of the approach is limited experimental sampling. Results show typical methodology errors of less than 1% for source temperature and 5% for source location. Results of combined experimental, experimental-numerical, and methodology errors were found to be typically less than 3% for source temperature and 6% for source location. The paper presents the basic methodology, typical results obtained, and the accuracy of the predictions. Practical problems, where this approach may be useful, are outlined.

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