BUOYANCY EFFECT CAUSED BY INDOOR HUMIDITY AND NUMERICAL SIMULATION BASED ON k-ε MODEL : Effect of water vapor on temperature distribution in rooms (Part 1)

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  • 湿度による浮力の影響を考慮した室内温熱環境予測 : 室内空気中の水蒸気が空間温度分布に与える影響(その1)
  • シツド ニ ヨル フリョク ノ エイキョウ オ コウリョ シタ シツナイ オンネツ カンキョウ ヨソク シツナイ クウキ チュウ ノ スイジョウキ ガ クウカン オンド ブンプ ニ アタエル エイキョウ ソノ 1

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This paper describes the simulation method of the indoor humidity and temperature distributions that is important to study the wet area in rooms. (1) Buoyancy Effect of Humidity Ratio The air density depends not only on temperature but on mass concentration such as humidity, therefore the buoyancy effect of humidity may be appeared in some spaces where the spatial distribution of humidity is very large. The treatment method of this effect into the k-ε turbulence model was discussed in this paper. (2) Near Wall Mass Transfer In order to study the airflow and humidity distributions near wall region, the two-dimensional cavity flows was simulated based on the Low-Reynolds number k-ε model.

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