CFD Simulation of Flow-field around a High-rise Building Located in Surrounding City Blocks

Part (1) Outline of Experiment and Calculation, Influences of various calculation conditions

Abstract

This paper describes CFD simulations of flowfield around a high-rise building surrounded by the low-rise city blocks. Wind tunnel experiments in boundary layer using split-film probe were carried out by the present authors to obtain data for assessing the accuracy of CFD results. In the CFD simulations, influences of calculation conditions such as size of side and upper calculation region, grid system, range of surrounding city blocks were investigated. CFD results with k-e model well agreed with the experimental result at the high wind speed points. The influences of various calculation conditions on prediction accuracy are discussed in detail in this paper.