自動車用ヘッドランプ内の自然対流解析(第2報,FSI-DM法による熱放射を考慮した部品温度の予測)(流体工学,流体機械)

概要

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In the former study, in order to predict the temperature in an automotive headlamp without coupling fluid and structure mechanics, SHT (Surface Heat transfer) method has been developed and the temperature estimation accuracy using SHT has been investigated for practical use. Consequently, the temperature results by CFD were within ±10 degrees as compared with the experimental results. The reason of the error was considered with since neither the radiation in the high temperature area nor the three-dimensional movement inside plastic parts were taken into consideration. In the present study, in order to take these movements into consideration, a newly-developed method called FSI-DM (Fluid Solid Interface using Discontinuous Mesh) was developed. This FSI-DM is the method of connecting fluid and solid parts using a discontinuous mesh, and the density of the mesh inside the solid and the fluid can be changeable. Furthermore, the coarse mesh on the surface of the solid enables us to calculate the radiation with a smaller memory capacity.
一般社団法人日本機械学会の論文
2002-12-25