WIT Press


A BEM-based Inverse Algorithm To Retrieve Multi-dimensional Heat Transfer Coefficients From Transient Temperature Measurements

Price

Free (open access)

Paper DOI

10.2495/BT990071

Volume

23

Pages

10

Published

1999

Size

864 kb

Author(s)

Alain J. Kassab, Eduardo Divo, and Mingking Chyu

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 "be

Keywords