Numerical Simulation Method for Unsteady Wind Field around Building
| Periodical | Advanced Materials Research (Volumes 243 - 249) |
|---|---|
| Main Theme | Advances in Civil Engineering and Architecture |
| Edited by | Chaohe Chen, Yong Huang and Guangfan Li |
| Pages | 521-526 |
| DOI | 10.4028/www.scientific.net/AMR.243-249.521 |
| Citation | Qi Li et al., 2011, Advanced Materials Research, 243-249, 521 |
| Online since | May, 2011 |
| Authors | Qi Li, Qing Shan Yang, Yu Fen Jin |
| Keywords | Collocated Grids, Curvilinear Coordinates, Finite Difference Method, Large Eddy Simulation (LES), Rhie-Chow Interpolation, TTU Building |
| Price | US$ 28,- |
A large eddy simulation algorithm for numerically calculating unsteady wind field around complex geometry building was given. In this algorithm, a curvilinear coordinate system was used to formulate the numerical model, so the complex wind-structure interface could be described precisely. Governing equations were discretized by central differencing schemes with co-located grids. The convection velocity was interpolated by using Rhie-Chow method in order to avoid the inherent odd-even decoupling problem. A common Maker and Cell (MAC) scheme was used to split the velocity-pressure linkage in Navier-Stockes (NS) equation. An explicit Adams-Bashforth differencing scheme was applied for time marching. A corresponding computer code was developed and was validated by performing on simulation of wind field around full-scale Texas Tech University (TTU) building model. Furthermore, the simulation results were compared with corresponding field measure data and wind-tunnel experiment results reported by other authors. The comparison showed that this algorithm is feasible for numerical simulation of unsteady wind field around buildings.
