DNS of turbulent low Mach channel flow under asymmetric high temperature gradient: Effect of thermal boundary condition on turbulence statistics

被引：16

作者：

Avellaneda, J. M. ^{[1
]}

Bataille, F. ^{[1
]}

Toutant, A. ^{[1
]}

机构：

[1] Univ Perpignan Via Domitia, PROMES CNRS, UPR 8521, Perpignan, France

来源：

INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW | 2019年 / 77卷

关键词：

Turbulence; Direct numerical simulation; Channel flow; Asymmetric heating; Low mach; DIRECT NUMERICAL-SIMULATION; SMOOTH CONCENTRIC ANNULI; HEAT-TRANSFER; PRANDTL NUMBER; ENERGY EXCHANGES; PIPE FLOWS; WALL; REYNOLDS; FIELD;

D O I：

10.1016/j.ijheatfluidflow.2019.03.002

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Direct Numerical Simulations have been performed for a fully-developed low Mach turbulent flow of an ideal gas with thermo-dependent viscosity and thermal conductivity in a flat channel at mean friction Reynolds number Re-tau = 180 submitted to asymmetric heating with a wall temperature ratio T-2/T-1 = 2. Mean and turbulent statistics of the flow have been studied and compared for two different thermal boundary conditions: fixed temperatures on the one hand and fixed heat flux densities on the other hand. The influence of the boundary condition type is studied. Temperature variance is particularly impacted by this choice and exhibits asymmetric profiles with different behavior depending on the boundary condition.

引用

页码：40 / 47

页数：8

共 52 条

[1] Spectral analysis of turbulence in anisothermal channel flows [J].

Aulery, Frederic ;

Dupuy, Dorian ;

Toutant, Adrien ;

Bataille, Francoise ;

Zhou, Ye .

COMPUTERS & FLUIDS, 2017, 151 :115-131

[2] Energy transfer process of anisothermal wall-bounded flows [J].

Aulery, Frederic ;

Toutant, Adrien ;

Bataille, Francoise ;

Zhou, Ye .

PHYSICS LETTERS A, 2015, 379 (24-25) :1520-1526

[3]

Aydin O, 2000, NUMER HEAT TR A-APPL, V37, P695, DOI 10.1080/104077800274037

[4]

Batchelor David, 2000, Introduction to Fluid Mechanics

[5] TURBULENT HEAT AND MOMENTUM TRANSFER IN A SQUARE DUCT WITH MODERATE PROPERTY VARIATIONS [J].

BATTISTA, E ;

PERKINS, HC .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1970, 13 (06) :1063-&

[6] Large Eddy Simulations of thermal boundary layer developments in a turbulent channel flow under asymmetrical heating [J].

Bellec, Morgane ;

Toutant, Adrien ;

Olalde, Gabriel .

COMPUTERS & FLUIDS, 2017, 151 :159-176

[7] Near-wall passive scalar transport at high Prandtl numbers [J].

Bergant, Robert ;

Tiselj, Iztok .

PHYSICS OF FLUIDS, 2007, 19 (06)

[8]

Bergman TL., 2011, Introduction to heat transfer, DOI DOI 10.1016/J.APPLTHERMALENG.2011.03.022

[9] Turbulent heat transfer characteristics of water flow in a rotating pipe [J].

Bousbai, M. ;

Ould-Rouiss, M. ;

Mazouz, A. ;

Mataoui, A. .

HEAT AND MASS TRANSFER, 2013, 49 (04) :469-484

[10] An object-oriented approach to the design of fluid mechanics software [J].

Calvin, C ;

Cueto, O ;

Emonot, P .

ESAIM-MATHEMATICAL MODELLING AND NUMERICAL ANALYSIS-MODELISATION MATHEMATIQUE ET ANALYSE NUMERIQUE, 2002, 36 (05) :907-921

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