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oai:ir.kagoshima-u.ac.jp:00007723 2026-03-03T08:45:23Z 228:273:5352 35:36

小屋裏気流分布の数値解析 NUMERICAL SIMULATION OF ATTIC AIR DISTRIBUTION 荘, 達民 ZHUANG, Damin 赤坂, 裕 AKASAKA, Hiroshi 黒木, 荘一郎 KUROKI, Soichiro 501 Attic air temperature of wooden houses usually rises more than 50°C during daytime in the summer season, and this causes a temperature rise in the rooms underneath the attic space. So it is necessary to prevent a great temperature rise in the attic space, in order to improve the room thermal environment during the summer season. The common countermeasure for the problem is natural or forced ventilation of attic space. The authors examined the effect of the method quantitatively by the field measurements and have already reported the results. This time, we also discuss the effect using computer simulation. Firstly, the method of numerical analysis of attic air distribution using a k-ε turbulence model is summarized. Then, both isothermal and non-isothermal situations with forced ventilation are simulated. Not only the influences of inlet and outlet locations and their sizes, but the cooling effect of night ventilation are examined. departmental bulletin paper 鹿児島大学 Kagoshima University 1990-09 VoR application/pdf 鹿児島大学工学部研究報告 32 163 172 The research reports of the Faculty of Engineering, Kagoshima University 0451212X AN00040363 https://ir.kagoshima-u.ac.jp/record/7723/files/AN00040363_v32_p163-172.pdf http://hdl.handle.net/10232/12444 https://ir.kagoshima-u.ac.jp/records/7723 jpn open access