Flow and Heat Transfer Characteristics of Multiple Impinging Jets: Large Eddy Simulation

被引：0
|
作者：
Draksler, Martin [1 ]
Koncar, Bostjan [1 ]
Cizelj, Leon [1 ]
Niceno, Bojan [2 ]
机构：
[1] Jozef Stefan Inst, Jamova Cesta 39, Ljubljana 1000, Slovenia
[2] Paul Scherrer Inst, CH-5232 Villigen, Switzerland
来源：
22ND INTERNATIONAL CONFERENCE NUCLEAR ENERGY FOR NEW EUROPE, (NENE 2013) | 2013年
关键词：
MATRIX;
D O I：
暂无
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
The flow and heat transfer characteristics of highly turbulent impinging jets are analyzed numerically by the means of Large Eddy Simulation. Experimental conditions at the nozzle plate (domain inlet) are not known, and therefore sensitivity analysis of the inlet boundary condition has been performed. Three different velocity profiles are tested, namely the flat velocity profile, the fitted profile from the precursor RANS simulation, and the flat velocity profile with additional pseudo-random fluctuations. The mean flow and heat transfer characteristics, obtained by time-averaging of the instantaneous results, are discussed and compared with available experimental data.
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页数：9
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