Large‐scale computer simulation of fully developed turbulent channel flow with heat transfer

Large‐scale computer simulation of fully developed turbulent channel flow with heat transfer Recently, with the advent of supercomputers, there has been considerable interest in the use of direct numerical simulation to obtain information about turbulent shear flow at low Reynolds number. This paper presents a pseudospectral technique to solve the full three‐dimensional time‐dependent Navier‐Stokes and advection‐diffusion equations without the use of subgrid‐scale modelling. The technique has not been previously used for fully developed turbulent channel flow simulation and is based on methods applied in other contexts. The emphasis of this paper is to provide a reasonably detailed account of how the simulation is done rather than to present new calculations of turbulence. The details of an algorithm for turbulent channel flow simulation and the grid and time step sizes needed to integrate through transient behaviour to steady state turbulence have not been published before and are presented here. Results from a Cray‐2 simulation of fully developed turbulent flow in a channel with heat transfer are presented along with a critical comparison between experiment and computation. The first‐ and second‐order moments agree well with experimental measurements; the agreement is poor for higher‐order moments such as the skewness and flatness near the walls of the channel. Detailed information given about the effects of spatial grid resolution on a computed results is important for estimating the size of the computation required to study various aspects of a turbulent flow. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png International Journal for Numerical Methods in Fluids Wiley

Large‐scale computer simulation of fully developed turbulent channel flow with heat transfer

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Publisher
Wiley
Copyright
Copyright © 1991 John Wiley & Sons, Ltd
ISSN
0271-2091
eISSN
1097-0363
D.O.I.
10.1002/fld.1650130805
Publisher site
See Article on Publisher Site

Abstract

Recently, with the advent of supercomputers, there has been considerable interest in the use of direct numerical simulation to obtain information about turbulent shear flow at low Reynolds number. This paper presents a pseudospectral technique to solve the full three‐dimensional time‐dependent Navier‐Stokes and advection‐diffusion equations without the use of subgrid‐scale modelling. The technique has not been previously used for fully developed turbulent channel flow simulation and is based on methods applied in other contexts. The emphasis of this paper is to provide a reasonably detailed account of how the simulation is done rather than to present new calculations of turbulence. The details of an algorithm for turbulent channel flow simulation and the grid and time step sizes needed to integrate through transient behaviour to steady state turbulence have not been published before and are presented here. Results from a Cray‐2 simulation of fully developed turbulent flow in a channel with heat transfer are presented along with a critical comparison between experiment and computation. The first‐ and second‐order moments agree well with experimental measurements; the agreement is poor for higher‐order moments such as the skewness and flatness near the walls of the channel. Detailed information given about the effects of spatial grid resolution on a computed results is important for estimating the size of the computation required to study various aspects of a turbulent flow.

Journal

International Journal for Numerical Methods in FluidsWiley

Published: Nov 5, 1991

References

  • The size of turbulent eddies close to a wall
    Lyons, Lyons; Nikolaides, Nikolaides; Hanratty, Hanratty
  • Numerical simulation of incompressible flows within simple boundaries
    Orszag, Orszag
  • Turbulence‐producing eddies in the viscous wall region
    Lyons, Lyons; Hanratty, Hanratty; McLaughlin, McLaughlin

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