Numerical Simulation of Rotating Channel Flows Using a Second Moment Turbulence Closure

Title & Authors
Numerical Simulation of Rotating Channel Flows Using a Second Moment Turbulence Closure
Shin, Jong-Keun; Choi, Young-Don;

Abstract
A low-Reynolds-number second moment turbulence closure is improved with the aid of DNS data. For the model coefficients of pressure-strain terms, we adopted Shima's model with some modification. Shin and Choi's new dissipation-rate equation is employed to simulate accurately the turbulence energy dissipation rate distribution in the near wall sublayer. The results of computations are compared with DNS, LES data and experimental data for turbulent plane channel flow with rotation about spanwise axis. The present second moment closure achieves a level of agreement similar to that for the non-rotating. In particular, it accurately captures the distribution of turbulence energy dissipation rate in the near wall region.
Keywords
Rotating Flow;Second Moment Turbulence Closure;Coriolis Force;Rotation Number;
Language
Korean
Cited by
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