多区画化空間構造における乱流熱拡散現象の解析

概要

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Safety, comfort and high-efficiency in marine systems are becoming strongly needed in recent years. A suitable method is required to accurately analyze the phenomena on the functional design related to the turbulent heat diffusion in enclosed spaces. One of the very complicated problems is the prediction of turbulent heat transfer in a multi-compartment structure, since the heat transfer is in high Rayleigh numbers and the flow field is almost governed by turbulent natural convection. An example of the flow field is the smoke flow in case of spontaneous outbreak of fire in a marine structure. This paper reports a numerical investigation of the characteristic phenomena of turbulent heat diffusion in the multi-compartment structure. The flow pattern, the temperature field and the turbulent eddy diffusivity in the structure are studied numerically. An expression to describe the relation between some governing factors and the thermal transfer intensity is presented and clarified by the numerical results.
社団法人日本船舶海洋工学会の論文
1998-03-29