任意形状を有する物体面間のふく射を伴う熱流動解析 : 解析手法とX線管への適用

概要

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Based on the finite element method for fluid flow, a simulation program which is able to solve the three-dimensional conjugate heat transfer problems of convection, conduction and radiation is developed. The idea that the finite element surface mesh for radiation can be automaticaly reproduced from the finite element solid mesh for fluid flow is employed. An algorithm for calculating radiation view factors between surfaces in an enclosure with obstructions is improved to handle a large number of radiative surfaces in a reasonable computing time. The result of a test calculation using the present program shows good agreement with the analytical value. Continuing effort is applied to more realistic problems. The example cited in this paper is the X-ray tube for a CT scanner, which has become one of the most common medical apparatus in recent years. The calculated temperature distribution shows good agreement with experimental temperatures.
一般社団法人日本機械学会の論文
1994-10-25