Direct and large eddy simulation of turbulent heat transfer at very low Prandtl number: Application to lead-bismuth flows

被引：51

作者：

Bricteux, L. ^{[1
]}

Duponcheel, M. ^{[1
]}

Winckelmans, G. ^{[1
]}

Tiselj, I. ^{[2
]}

Bartosiewicz, Y. ^{[1
]}

机构：

[1] Univ Catholique Louvain UCL, Inst Mech Mat & Civil Engn iMMC, B-1348 Louvaine La Neuve, Belgium

[2] Jozef Stefan Inst, Ljubljana, Slovenia

来源：

NUCLEAR ENGINEERING AND DESIGN | 2012年 / 246卷

关键词：

DIRECT NUMERICAL-SIMULATION; CHANNEL FLOW;

D O I：

10.1016/j.nucengdes.2011.07.010

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：

This paper deals with the issue of modeling convective turbulent heat transfer of a liquid metal with a Prandtl number down to 0.01, which is the order of magnitude of lead-bismuth eutectic in a liquid metal reactor. This work presents a DNS (direct numerical simulation) and a LES (large eddy simulation) of a channel flow at two different Reynolds numbers, and the results are analyzed in the frame of best practice guidelines for RANS (Reynolds averaged Navier-Stokes) computations used in industrial applications. They primarily show that the turbulent Prandtl number concept should be used with care and that even recent proposed correlations may not be sufficient. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：91 / 97

页数：7

共 15 条

[1] Surface heat-flux fluctuations in a turbulent channel flow up to Reτ=1020 with Pr=0.025 and 0.71 [J].

Abe, H ;

Kawamura, H ;

Matsuo, Y .

INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW, 2004, 25 (03) :404-419

[2]

[Anonymous], 2007, Handbook on Lead-Bismuth Eutectic Alloy and Lead Properties, Materials Compatibility, Thermal-Hydraulics and Technologies

[3]

[Anonymous], 2008, The World Energy Outlook 2008

[4]

[Anonymous], 2008, INTRO GENERATION 4 N

[5]

Bricteux L., 2009, PHYS FLUIDS, V21, P10

[6] Investigation on turbulent heat transfer to lead-bismuth eutectic flows in circular tubes for nuclear applications [J].

Cheng, X ;

Tak, N .

NUCLEAR ENGINEERING AND DESIGN, 2006, 236 (04) :385-393

[7] Direct numerical and large eddy simulations in nuclear applications [J].

Grötzbach, G ;

Wörner, M .

INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW, 1999, 20 (03) :222-240

[8] ON THE IDENTIFICATION OF A VORTEX [J].

JEONG, J ;

HUSSAIN, F .

JOURNAL OF FLUID MECHANICS, 1995, 285 :69-94

[9] DNS of turbulent heat transfer in channel flow with respect to Reynolds and Prandtl number effects [J].

Kawamura, H ;

Abe, H ;

Matsuo, Y .

INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW, 1999, 20 (03) :196-207

[10] Canonical fractional-step methods and consistent boundary conditions for the incompressible Navier-Stokes equations [J].

Lee, MJ ;

Oh, BD ;

Kim, YB .

JOURNAL OF COMPUTATIONAL PHYSICS, 2001, 168 (01) :73-100

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