Comparing the AIJ Guideline to COST for Practical Application of CFD to Wind Environment around Single Buildings

The significant developments in computer resources in recent past years has allowed computational fluid dynamics to serve as a very crucial method of predicting pedestrian wind environment for buildings within the atmospheric boundary layer during design stage in building construction. However, the accuracy of CFD simulation mainly depends on careful adherence to recommendation of best practice guidelines which provide valuable information on how CFD application should be used in order to reduce user errors accompanied by the incorrect use of CFD. This paper covers basic knowledge of CFD simulation for simple modeling case, such as flow around a tall building within the ABL using two empirical methods. From the comparison between the wind pressure distribution determined using the AIJ Guideline to the prediction from the COST guideline, the researcher found out that the performance of the two empirical methods were satisfactory.