Paper Conference

Proceedings of BSO Conference 2016: Third Conference of IBPSA-England

     

Validation Of Atmospheric Boundary Layer CFD Simulation Of A Generic Isolated Cube: Basic Settings For Urban Flows

Rawand Khasraw Bani

Abstract: Computational Fluid Dynamics (CFD) is a very useful and inexpensive method to study wind flow in and around buildings, but its accuracy is a subject of concern. Many commercial codes are available each with different levels of complexity and accuracy. Autodesk Simulation CFD (ASCFD) is a product that directly integrates complex Autodesk Revit modes. It is a very appealing option for architectural and urban studies. This research is a validation process to detect the best settings for ASCFD; it will be a base for further complicated urban studies in lack of access of a wind tunnel. The research conducted a systematic sensitivity analysis to examine the impact of many variables that affect Atmospheric Boundary Layer simulations. Generally, the code produced good results compared to a wind tunnel test in the stream wise velocity field, in a combined case the averaged deviation reached 7.5% and R²=0.95. Nevertheless, a notable deviation persisted in the wake region.
Pages: 572 - 578
Paper:
bso2016_1021