Large-Eddy Simulation of Dispersion from Line Sources in a Turbulent Channel Flow

被引：15
|
作者：
Boppana, Venkata Bharathi L. [1 ]
Xie, Zheng-Tong [1 ]
Castro, Ian P. [1 ]
机构：
[1] Univ Southampton, Sch Engn Sci, Southampton, Hants, England
来源：
FLOW TURBULENCE AND COMBUSTION | 2012年 / 88卷 / 03期
基金：
英国自然环境研究理事会;
关键词：
Channel flow; Dispersion; Line source; Source size; DIRECT NUMERICAL-SIMULATION; PASSIVE-SCALAR; CONCENTRATION FLUCTUATIONS; THERMAL FIELDS; POINT SOURCES; MODEL; INTERFERENCE; TRANSPORT; PLUME;
D O I：
10.1007/s10494-011-9356-x
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Large-eddy simulations of the dispersion from scalar line sources at various locations within a fully developed turbulent channel flow at Re = uh/nu = 10,400 are presented. Both mean and fluctuating scalar quantities are compared with those from the single available set of experimental data (Lavertu and Mydlarski, J Fluid Mech 528: 135-172, 2005) and differences are highlighted and discussed. The results are also discussed in the context of scalar dispersion in other kinds of turbulent flows, e. g. homogeneous shear-flow. Initial computations at a much lower Reynolds number are also reported and compared with the two available direct numerical simulation data sets.
引用
收藏
页码：311 / 342
页数：32
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