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Proceedings of Symposium on Energy Engineering in the 21<sup>st</sup> Century (SEE2000) Volume I-IV

ISSN:
1-56700-132-7 (Print)

IMPROVED MODELING OF URBAN WARMING AND NUMERICAL PROJECTION TO FUTURE URBAN ENVIRONMENT IN TOKYO

Takeo S. Saitoh
Department of Aeronautics and Space Engineering, Tohoku University, Sendai 980 Japan

Noboru Yamada
Department of Mechanical Engineering Nagaoka University of Technology, Nagaoka, Niigata 940-2133, Japan

Abstract

This paper describes a microscopic modeling for urban surface layer, where a lot of various structures (i.e. building, bridge, pavement, and other facilities) exist. The authors found out a structural similarity between urban structure and porous media. Flow model and method of analysis in porous media were applied to the microscopic modeling for urban surface layer. First, 2-D numerical study and experimental verification were conducted on unsteady natural convection. Resultant model will be used for more precise 3-D computer simulation of urban warming and urban planning.