Inverse natural convection problem of estimating wall heat flux using a moving sensor
Inverse heat transfer problems have many applications in various branch of science and engineering. Here, the inverse problem of determining heat flux at the bottom wall of a two-dimensional cavity from temperature measurement in the domain is considered. The Boussinesq equation is used to model the natural convection induced by the wall heat flux. The inverse natural convection problem is posed as a minimization problem of the performance function, which is the sum of square residuals between calculated and observed temperature, by means of a conjugate gradient method. Instead of employing several fixed sensors, a single sensor is used which is moving at a given frequency over the bottom wall. The present method solves the inverse natural convection problem accurately without a priori information about the unknown function to be estimated.
- Research Organization:
- Sogang Univ., Seoul (KR)
- OSTI ID:
- 20005623
- Journal Information:
- Journal of Heat Transfer, Vol. 121, Issue 4; Other Information: PBD: Nov 1999; ISSN 0022-1481
- Country of Publication:
- United States
- Language:
- English
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