Cartesian based finite volume formulation for LES of mixed convection in a vertical turbulent pipe flow

Xiaofeng Xu, Joon Sang Lee, R. H. Pletcher

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

A numerical study was performed to investigate the effects of heating and buoyancy on the turbulent structures and transport in turbulent pipe flow. Isoflux wall boundary conditions with low and high heating were imposed. The compressible filtered Navier-Stokes equations were solved using a second order accurate finite volume method. Low Mach number preconditioning was used to enable the compressible code to work efficiently at low Mach numbers. A dynamic subgrid-scale stress model accounted for the subgrid-scale turbulence. The results showed that strong heating caused distortions of the flow structures resulting in reduction of turbulent intensities, shear stresses, and turbulent heat flux, particularly near the wall. The effect of heating was to raise the mean streamwise velocity in the central region and reduce the velocity near the wall resulting in velocity distributions that resembled laminar profiles for the high heating case.

Original languageEnglish
Title of host publicationHeat Transfer
PublisherAmerican Society of Mechanical Engineers (ASME)
Pages95-109
Number of pages15
ISBN (Print)0791836371, 9780791836378
DOIs
Publication statusPublished - 2002 Jan 1

Publication series

NameASME International Mechanical Engineering Congress and Exposition, Proceedings
Volume6

Fingerprint

Mixed convection
Pipe flow
Heating
Mach number
Finite volume method
Flow structure
Velocity distribution
Buoyancy
Navier Stokes equations
Heat flux
Shear stress
Turbulence
Boundary conditions

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

Cite this

Xu, X., Lee, J. S., & Pletcher, R. H. (2002). Cartesian based finite volume formulation for LES of mixed convection in a vertical turbulent pipe flow. In Heat Transfer (pp. 95-109). (ASME International Mechanical Engineering Congress and Exposition, Proceedings; Vol. 6). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/IMECE2002-32748
Xu, Xiaofeng ; Lee, Joon Sang ; Pletcher, R. H. / Cartesian based finite volume formulation for LES of mixed convection in a vertical turbulent pipe flow. Heat Transfer. American Society of Mechanical Engineers (ASME), 2002. pp. 95-109 (ASME International Mechanical Engineering Congress and Exposition, Proceedings).
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Xu, X, Lee, JS & Pletcher, RH 2002, Cartesian based finite volume formulation for LES of mixed convection in a vertical turbulent pipe flow. in Heat Transfer. ASME International Mechanical Engineering Congress and Exposition, Proceedings, vol. 6, American Society of Mechanical Engineers (ASME), pp. 95-109. https://doi.org/10.1115/IMECE2002-32748

Cartesian based finite volume formulation for LES of mixed convection in a vertical turbulent pipe flow. / Xu, Xiaofeng; Lee, Joon Sang; Pletcher, R. H.

Heat Transfer. American Society of Mechanical Engineers (ASME), 2002. p. 95-109 (ASME International Mechanical Engineering Congress and Exposition, Proceedings; Vol. 6).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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N2 - A numerical study was performed to investigate the effects of heating and buoyancy on the turbulent structures and transport in turbulent pipe flow. Isoflux wall boundary conditions with low and high heating were imposed. The compressible filtered Navier-Stokes equations were solved using a second order accurate finite volume method. Low Mach number preconditioning was used to enable the compressible code to work efficiently at low Mach numbers. A dynamic subgrid-scale stress model accounted for the subgrid-scale turbulence. The results showed that strong heating caused distortions of the flow structures resulting in reduction of turbulent intensities, shear stresses, and turbulent heat flux, particularly near the wall. The effect of heating was to raise the mean streamwise velocity in the central region and reduce the velocity near the wall resulting in velocity distributions that resembled laminar profiles for the high heating case.

AB - A numerical study was performed to investigate the effects of heating and buoyancy on the turbulent structures and transport in turbulent pipe flow. Isoflux wall boundary conditions with low and high heating were imposed. The compressible filtered Navier-Stokes equations were solved using a second order accurate finite volume method. Low Mach number preconditioning was used to enable the compressible code to work efficiently at low Mach numbers. A dynamic subgrid-scale stress model accounted for the subgrid-scale turbulence. The results showed that strong heating caused distortions of the flow structures resulting in reduction of turbulent intensities, shear stresses, and turbulent heat flux, particularly near the wall. The effect of heating was to raise the mean streamwise velocity in the central region and reduce the velocity near the wall resulting in velocity distributions that resembled laminar profiles for the high heating case.

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Xu X, Lee JS, Pletcher RH. Cartesian based finite volume formulation for LES of mixed convection in a vertical turbulent pipe flow. In Heat Transfer. American Society of Mechanical Engineers (ASME). 2002. p. 95-109. (ASME International Mechanical Engineering Congress and Exposition, Proceedings). https://doi.org/10.1115/IMECE2002-32748