著者

中川 幸二 秋葉 機四郎 石塚 與喜雄

出版者

函館工業高等専門学校

雑誌

函館工業高等専門学校紀要 (ISSN:02865491)

巻号頁・発行日

vol.45, pp.13-21, 2011

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This study was to propose a replaceable event at night with low visibility on the observation deck of Mt. Hakodate. Two possibilities were studied. The first was to project a picture of night view on cloud. To check this possibility, flow distribution around Mt. Hakodate was studied by numerical simulation and water tunnel experiment. The result showed a very low possibility. The other was to project a picture such as night view on a water-sprayed screen. This experiment indicated that the screen has another utility besides as a part of fire prevention system.