複数粗度模型上に形成される粗度影響層 : 市街地における建築物周辺気流に関する実験的研究(その1)

概要

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The wind velocity profile above a city block consists of two differrent types; one in inner flow (in this paper call roughness infulential height), the other in outer flow. Due to wind tunnel tests using roughness models with relatively uniform height, it is said that the height of roughness influential height is approximately 1.7 times as heigh as the average height of blocks. Howerever, there are a few studies regarding roughness models with irregular heights of blocks such as those for urban areas. In this paper, wind tunnel tests with uniblock models are carried out and the equation for estimating the infulential height for a uniblock model is derived. By super-posing the estimated results, the height for a roughness model with irregular heights of blocks is obtained. By comparing test results with calculated values, it is learned that they are in good agreement and that this method can be used to estimate the roughness infuluential height for a city block model with irregular block heights such as those for urban areas.
社団法人日本建築学会の論文
1988-07-30