Numerical simulation of outdoor thermal environment for a sustainable lake town

In order to make sustainable single houses, it is very important to control the outdoor thermal environment. Therefore, various relaxation methods for the outdoor thermal environment are often planned, e.g. utilizing of the cooling effect of a water face, arrangement of water permeable material, planting trees etc. In this paper, a coupled simulation of CFD and radiation transfer is conducted in order to evaluate the outdoor thermal environment in riverside detached single houses near to Tokyo in Japan. The effects of various relaxation methods in summer described above are estimated from the results of this simulation. Furthermore, an optimum design of the outdoor thermal environment for the Lake Town is studied.