Title
A Bem-Based Inverse Algorithm To Retrieve Multi-Dimensional Heat Transfer Coefficients From Transient Temperature Measurements
Abstract
We present a BEM-based inverse algorithm to retrieve multi-dimensional heat transfer coefficients (h) from surface temperature measurements. The time history of temperatures at convective BEM nodes is measured (or simulated). At each time level, a regularized least-squares functional is minimized to retrieve current fluxes and simultaneously smooth out temperature measurement errors. The regularization term weighs the square of deviations of BEM-computed fluxes from a mean flux to allow adjustment of temperatures and fluxes to obtain a 'best fit' through noisy input data. Results for retrieval of h over a square and a backward facing step show the 1-D approach fails to reproduce h, while our approach reproduces h accurately while being robust to input errors.
Publication Date
12-1-1999
Publication Title
Boundary Element Technology XIII. Proceedings of the 1999 Thirteenth International Conference on Boundary Element Technology, BETECH '99
Number of Pages
65-74
Document Type
Article; Proceedings Paper
Personal Identifier
scopus
Copyright Status
Unknown
Socpus ID
0033492415 (Scopus)
Source API URL
https://api.elsevier.com/content/abstract/scopus_id/0033492415
STARS Citation
Kassab, A. J.; Divo, E.; and Chyu, M., "A Bem-Based Inverse Algorithm To Retrieve Multi-Dimensional Heat Transfer Coefficients From Transient Temperature Measurements" (1999). Scopus Export 1990s. 4212.
https://stars.library.ucf.edu/scopus1990/4212