Study on Optimum Arrangement of Pilotis for Design of Pleasant Outdoor Wind Environment Using CFD Simulation and Genetic Algorithm (GA)

Research Project , Research Report 2003

Ryozo Ooka I.I.S., The University of TokyoThe
Shinsuke Kato I.I.S., The University of TokyoThe
Hong Chen I.I.S., The University of TokyoThe

Abstract

The outdoor wind environment has various problems in both summer and winter respectively. It is affected by various weather factors such as wind, air temperature, humidity and radiation etc. In order to improve the inferior outdoors thermal environment in summer, improvement of ventilation is considered as a major factor among various factors. On the other hand, increasing wind velocity in winter is considered significant factor of human’s unpleasantness. This research aims at development of the optimum design method for pleasant outdoor thermal environment in the apartment block in both summer and winter. In this paper, three cases are examined: (1) two cases (case1 and case2) which are different design objective (improve the ventilation in summer and control of the cold wind inflow in winter) are examined using GA (Genetic Algorithm), (2) in addition, as a multi-objective optimization, the case (case3) which both improves the ventilation in summer and controls of the cold wind inflow in winter is examined using MOGA (Multi-Objective Genetic Algorithm).

Keywords:

GA, outdoor thermal environment, optimum arrangement of piloti