Ayako Nishimura, Masashi Imano, Kei Ogino, Keigo Nomura,Yuzo Sakamoto
Bibliographic info:
31st AIVC Conference " Low Energy and Sustainable Ventilation Technologies for Green Buildings", Seoul, Korea, 26-28 October 2010

In this study, we propose a method for forecasting heat emission effect in a small single-sided slit opening. In order to make a heat flux forecasting model, we carried out field measurement, wind tunnel experiment, and CFD analysis. In the field measurement, we measured heat flux and grasped the relationship of heat flux of the opening and airflow around the building surface. In the wind tunnel experiment, we measured airflow around the opening and grasped turbulence characteristics. In the CFD analysis, we used RANS model of high Reynolds numbers type and considered optimum turbulence model by comparing with the results of wind tunnel experiment. Finally, we used standard k-ε model under non-isothermal conditions and calculated the coefficients of the heat flux forecasting model from the relationship of heat emission quantity at the opening and airflow around the building surface by CFD analysis