A mathematical model is constructed for simulating thermal regimes of typical electronic building blocks. It describes convective heat transfer in an air-filled cavity having finitely thick heat-conducting walls and containing a heat source. On this basis, flow patterns, temperature fields, and vorticity-vector fields are computed that characterize the convective heat transfer over a range of natural-convection parameters found in practice. Nonstationarity is shown to be a determinant of thermal regimes attained by the system. Computational relations are derived representing the variation of the average Nusselt number with the Grashof number for the boundary of the cavity.
Russian Microelectronics – Springer Journals
Published: Jan 19, 2011
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