Paper Conference

Proceedings of ASim Conference 2012: 1st Asia conference of IBPSA-China, Japan, Korea


A three layered framework for annual indoor airflow CFD simulation (Part I)

Yue Wang, Ali Malkawi, Yun Kyu Yi, Ning Feng

Abstract: Computational fluid dynamics (CFD) is one of the branches of fluid mechanics that uses numerical methods and algorithms to solve and analyze problems that involve fluid flows. Fast flow simulations are needed for some applications in building industry, such as the conceptual design of indoor environment, or coupled with energy simulation to provide deep analysis on the performance of the buildings. Such applications need a similar level of accuracy as traditional CFD simulation, since they require conceptual or semi-accurate distributions of the flow within a short computing time. Year round simulation is needed instead of two or three extreme cases, to help the designer investigate the problem clearly. However, CFD computation is usually time consuming with an inability to simulate real-time indoor air movement. This research will provide a three layered framework to optimize CFD to cover annual hourly simulation. Most of the literature will be reviewed based on the framework. Currently, many researchers are concentrating on hardware utilization to make simulation much faster so in this paper, latest researches using this methodology will be thoroughly reviewed.
Pages: 659 - 665