Simultaneous estimation of location and timewise-varying strength of a plane heat source
- North Carolina State Univ., Raleigh, NC (United States). Dept. of Mechanical and Aerospace Engineering
An inverse analysis utilizing the conjugate gradient method of minimization and adjoint equation is used to estimate unknown location and timewise-varying strength of a plane heat source placed inside a plate with insulated boundaries. No prior information is used for the functional form of timewise variation of the source strength. Transient temperature recordings computed at the boundaries of the region, modified by adding random errors, served as the simulated experimental data for the inverse analysis. In order to examine the accuracy of the estimation under most strict conditions, timewise variation of the source strength is chosen in the form of rectangular, triangular, and sinusoidal functions. An implicit finite difference scheme is used to solve the resulting inverse problem with a CRAY Y-MP supercomputer.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 143733
- Journal Information:
- Numerical Heat Transfer. Part A, Applications, Journal Name: Numerical Heat Transfer. Part A, Applications Journal Issue: 4 Vol. 24; ISSN 1040-7782; ISSN NHAAES
- Country of Publication:
- United States
- Language:
- English
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