Numerical Modeling of Transpiration-Cooled Turbulent Channel Flow with Comparisons to Experimental Data

2018 ◽  
Vol 32 (3) ◽  
pp. 713-735 ◽  
Author(s):  
David J. Munk ◽  
Markus Selzer ◽  
Hannah Böhrk ◽  
Sven Schweikert ◽  
Gareth A. Vio
Keyword(s):  
Experimental Data ◽  
Numerical Modeling ◽  
Channel Flow ◽  
Turbulent Channel Flow

An Analytical Study of the Standard k–ε Model

1990 ◽  
Vol 112 (2) ◽  
pp. 192-198 ◽  
Author(s):  
N. Takemitsu
Keyword(s):  
Experimental Data ◽  
Asymptotic Solution ◽  
Channel Flow ◽  
Analytical Study ◽  
Turbulent Channel Flow ◽  
Second Order ◽  
Two Dimensional ◽  
Ill Posed ◽  
Leading Term ◽  
Logarithmic Law

An asymptotic solution of the standard k–ε model for two-dimensional turbulent channel flow is found. Using this solution, five model constants in the model are all determined reasonably with the aid of experimental data. If an asymptotic solution with the logarithmic law as the leading term is sought for, the standard k–ε model is shown to be ill-posed since the second-order solution has divergent terms.

Turbulence statistics in fully developed channel flow at low Reynolds number

1987 ◽  
Vol 177 ◽  
pp. 133-166 ◽  
Author(s):  
John Kim ◽  
Parviz Moin ◽  
Robert Moser
Keyword(s):  
Experimental Data ◽  
Reynolds Number ◽  
Channel Flow ◽  
Stokes Equations ◽  
Turbulent Channel Flow ◽  
Navier Stokes ◽  
Turbulence Statistics ◽  
Navier Stokes Equations ◽  
Statistical Correlations ◽  
Grid Points

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 × 106 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.

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