教師資料查詢 | 類別: 期刊論文 | 教師: 張正興CHENG-HSIN CHANG (瀏覽個人網頁)

標題:Computational Fluid Dynamics Simulation of Pedestrian Wind in Urban Area with the Effects of Tree
學年94
學期2
出版(發表)日期2006/03/01
作品名稱Computational Fluid Dynamics Simulation of Pedestrian Wind in Urban Area with the Effects of Tree
作品名稱(其他語言)
著者張正興
單位淡江大學土木工程學系
出版者
著錄名稱、卷期、頁數Wind & Structures, An Int'l Journal 9(2), pp.147-158
摘要The purpose of this paper is to find a more accurate method to evaluate pedestrian wind by computational fluid dynamics approach. Previous computational fluid dynamics studies of wind environmental problems were mostly performed by simplified models, which only use simple geometric shapes, such as cubes and cylinders, to represent buildings and structures. However, to have more accurate and complete evaluation results, various shapes of blocking objects, such as trees, should also be taken into consideration. The aerodynamic effects of these various shapes of objects can decrease wind velocity and increase turbulence intensity. Previous studies simply omitted the errors generated from these various shapes of blocking objects. Adding real geometrical trees to the numerical models makes the calculating domain of CFD very complicated due to geometry generation and grid meshing problems. In this case the function of Porous Media Condition can solve the problem by adding trees into numerical models without increasing the mesh grids. The comparison results between numerical and wind tunnel model are close if the parameters of porous media condition are well adjusted.
關鍵字
語言英文
ISSN
期刊性質國內
收錄於
產學合作
通訊作者
審稿制度
國別中華民國
公開徵稿
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