Abstract
A direct numerical simulation of a turbulent channel flow is performed. The unsteady Navier-Stokes equations are solved numerically at a Reynolds number of 3300, based on the mean centreline velocity and channel half-width, with about 4 × 10 6 grid points (192 × 129 × 160 in x, y, z ). All essential turbulence scales are resolved on the computational grid and no subgrid model is used. A large number of turbulence statistics are computed and compared with the existing experimental data at comparable Reynolds numbers. Agreements as well as discrepancies are discussed in detail. Particular attention is given to the behaviour of turbulence correlations near the wall. In addition, a number of statistical correlations which are complementary to the existing experimental data are reported for the first time.
Keywords
TurbulenceReynolds numberReynolds stress equation modelReynolds decompositionK-epsilon turbulence modelPhysicsMechanicsStatistical physicsReynolds-averaged Navier–Stokes equationsK-omega turbulence modelOpen-channel flowDirect numerical simulationFlow (mathematics)
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Publication Info
- Year
- 1987
- Type
- article
- Volume
- 177
- Pages
- 133-166
- Citations
- 4676
- Access
- Closed
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Cite This
John Kim,
Parviz Moin,
Robert Moser
(1987).
Turbulence statistics in fully developed channel flow at low Reynolds number.
Journal of Fluid Mechanics
, 177
, 133-166.
https://doi.org/10.1017/s0022112087000892
Identifiers
- DOI
- 10.1017/s0022112087000892