二相系熱水分同時移動方程式による数値実験に基づく土壌物性値の同定 : 都市熱環境評価のための地表面からの蒸発量の簡易計算手法に関する研究第2報

概要

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Fundamental hygrothermal properties of soil were obtained by a series of numerical experiments in which the hygrothermal dynamics model was adopted as an exact solution. These properties as Evaporation Ratio, Hydraulic Transmittance and Moisture Diffusivity are simultaneously requisite in the simplified calculation model to estimate evaporation rate from soil surface, the authors developed. Time-series data of calculation led to the relationships between normalized weight water content of discrete soil surface layer and above-mentioned three properties, respectively. These relationships seem to be the most appropriate presentation of the hygrothermal properties from the view point of practical use. Good agreement between the exact solution and simplified one as compared with the Constant Evaporation Ratio Model, was considered to warrant a validity of the identified properties.
社団法人日本建築学会の論文
2001-02-28