Journal of Applied Mathematics and Physics, 2014, 2, 264-268

Published Online May 2014 in SciRes. http://www.scirp.org/journal/jamp

http://dx.doi.org/10.4236/jamp.2014.26031

How to cite this paper: He, W.K. and Yuan, W.B. (2014) Numerical Simulation of Wind Field Characteristics around Two

Adjacent High-Rise Buildings. Journal of Applied Mathematics and Physics, 2, 264-268.

http://dx.doi.org/10.4236/jamp.2014.26031

Numerical Simulation of Wind Field

Characteristics around Two Adjacent

High-Rise Buildings

Wenkai He, Weibin Yuan*

College of Civil Engineering, Zhejiang University of Technolo gy, Hangzhou, China

Email: *99788027 5@qq.co m

Received January 2014

Abstract

This paper based on R eynol ds-averaged Navier-Stokes equations standard

model [1]; the

surface pressure on the wind field around two adjacent high-rise buildings was numerically simu-

lated with software Fluent. The results show that with the influence of adjacent high-rise building,

numerical simulation is a good way to study the wind field around high-rise building and the dis-

tribution of wind pressure on building’ surface. The pressures on the windward surface are posi-

tive with the maximum at 2/3 H height and have lower values on the top and bottom. The pres-

sures on the leeward surface and two sides were negative. Due to the serious flow separation at

the corner of building’s windward, the wind field has a high turbulent kinetic energy.

Keywords

High-Rise Building, Numerical Simulation, Wind Field Characteristics, Turbulence Model

1. Introduction

Studies on a square or a rectangular cross-section building affected by wind have been made by many research-

ers owing to its importance. However, a single building is a very rare case in the real world [2]-[4]. Shuyong

Tang and Shuifu Chen [5] suggested that building’s wind pressure and surrounding wind field will be affected

by the adjacent building. And when it comes to high-rise building, the influence will be even more serious if

there is another high-rise building beside it.

Nowadays having studied of wind field characteristic on high-rise building we can use both wind tunnel test

and numerical simulation. The wind tunnel test has been widely used to determine the aerodynamic characteris-

tics of buildings for years [6]-[8]. However, wind tunnel test req uires strict conditions of similarity, and it is also

difficult to simulate both atmospheric boundary layer turbulence structure features and inlet wind velocity pro-

file. What’s more, the test conditions have to change in order to adjust to different wind and building environ-

ment. Comparing with the wind tunnel test, numerical simulation has the characteristics of low cost, short cycle

and high efficiency. It can be conveniently by changing various parameters to simulate the flow field characte-

ristics of various kinds of ideal and real conditions. This paper would like to study the wind field characteristics

by using the numerical simulation.

*