Comparison of flow and dispersion properties of free and wall turbulent jets for source dynamics characterisation

被引:7
|
作者
Aloysius, S. S. [1 ]
Wrobel, L. C. [1 ]
机构
[1] Brunel Univ, Sch Engn & Design, Uxbridge UB8 3PH, Middx, England
关键词
Buoyant jets; Large eddy simulation; Computational fluid dynamics; Source dynamics; Pollutant dispersion; Buoyancy effects; Ground effects; Airplane take-off; ALAQS; NOx; NUMERICAL-SIMULATION; LIFT;
D O I
10.1016/j.envsoft.2008.12.007
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
The objective of this paper is to provide an investigation, using large eddy simulations, into the dispersion of aircraft jets in co-flowing take-off conditions. Before carrying out such study, simple turbulent plane free and wall jet simulations are carried out to validate the computational models and to assess the impact of the presence of the solid boundary on the flow and dispersion properties. The current study represents a step towards a better understanding of the source dynamics behind an airplane jet engine during the take-off and landing phases. The information provided from these simulations can be used for future improvements of existing dispersion models. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码:926 / 937
页数:12
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