メソスケールモデルに組み込んだ都市キャノピーモデルにおける放射解析手法の改良

概要

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The authors have incorporated an urban canopy model into a meso-scale meteorological model. However, the accuracy of view factors in the canopy model is insufficient under certain urban configurations. Therefore, a new method for radiation calculation in the urban canopy region, which has accuracy to some extent and low computational load, is developed. The accuracy of the new methods is examined by the comparison with the results from the Monte Carlo method. Next, in the meso-scale meteorological model, the authors adopted these methods and the thermal environment in the Tokyo metropolitan area is analyzed. The results show better agreement with observation data for a typical summer's day than those derived from the conventional method. In addition, a revised method of estimating Mean Radiant Temperature (MRT) in the urban canopy is also developed.
社団法人日本建築学会の論文
2006-11-30