A Simple Energy Balance Model for Regular Building Arrays

Authors: Kanda, M.¹; Kawai, T.²; Kanega, M.²; Moriwaki, R.²; Narita, K.²; Hagishima, A.²

Source: Boundary-Layer Meteorology, Volume 116, Number 3, September 2005 , pp. 423-443(21)

Publisher: Springer

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Abstract:

A simple urban energy balance model for mesoscale simulations (SUMM) was tested using results from an outdoor scale-model experiment. The model geometry is assumed to be an infinitely extended regular array of uniform buildings, each of which is composed of six faces (roof, floor, and four vertical walls). The SUMM explicitly considers the three dimensionality of surface geometry and theoretically predicts the energy balance at each face without time-consuming iterations. The SUMM was compared with outdoor scale-model experiments. The simulated energy balance and surface temperatures agree well with the values measured on a reduced-scale hardware model corresponding to the numerical model geometry.

Keywords: Bulk transfer coefficient; Energy balance; Outdoor experiment; Regular building array; Theoretical model; Urban canopy

Document Type: Research article

DOI: http://dx.doi.org/10.1007/s10546-004-7956-x

Affiliations: 1: Department of International Development Engineering, Tokyo Institute of Technology, 2-12-1O-okayama, Meguro-ku, Tokyo, 152-8552, Japan, Email: kanda@ide.titech.ac.jp 2: Department of International Development Engineering, Tokyo Institute of Technology, 2-12-1O-okayama, Meguro-ku, Tokyo, 152-8552, Japan,

Publication date: 2005-09-01