Experimental and numerical study of wind flow behind windbreaks

被引：135
作者：
Santiago, J. L.
Martin, F.
Cuerva, A.
Bezdenejnykh, N.
Sanz-Andres, A.
机构：
[1] CIEMAT, Res Ctr Energy Environm & Technol, Dept Environm, E-28040 Madrid, Spain
[2] Univ Politecn Madrid, IDR, ETSI Aeronaut, E-28040 Madrid, Spain
来源：
ATMOSPHERIC ENVIRONMENT | 2007年 / 41卷 / 30期
关键词：
CFD modelling; porosity; windbreaks; wind tunnel experiments;
D O I：
10.1016/j.atmosenv.2007.01.014
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The shelter effect of a windbreak protects aggregate piles and provides a reduction of particle emissions in harbours. RANS (Reynolds-averaged Navier-Stokes equations) simulations using three variants of k-epsilon (standard k-epsilon, RNG k-epsilon and realizable k-epsilon) turbulence closure models have been performed to analyse wind flow characteristics behind an isolated fence located on a flat surface without roughness elements. The performance of the three turbulence models has been assessed by wind tunnel experiments. Cases of fences with different porosities (phi) have been evaluated using wind tunnel experiments as well as numerical simulations. The aim is to determine an optimum porosity for sheltering effect of an isolated windbreak. A value of 0.35 was found as the optimum value among the studied porosities (phi = 0, 0.1, 0.24, 0.35, 0.4,0.5). (C) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码：6406 / 6420
页数：15
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