발열 전도체가 존재하는 밀폐계 내부의 자연대류 현상에 대한 수치적 연구

A Numerical Study of Natural Convection in a Horizontal Enclosure with Heat-Generating Conducting Body

The physical model considered here is a horizontal layer of fluid heated below and cooldabove with a heat-generating conducting body placed at the center of the layer. The body genrates a constant amount of heat as initial condition. Two-dimensional solution for unsteady natural convection is obtained using an accurate and efficient Chebyshev spectral methodology for various of Rayleigh number from $10^3$ to $10^6$. Multi-domain Technique is used to handle heat-generating conducting body. The results for the case of heat-generating body are also compared to those of adaibatic body.