Comparison of Near-Wake Predictions Using Two-Equation µ Model and Reynolds-Stress Model
Turbulence characteristics in free mixing were analyzed using the two-equation ?-? model and the Reynolds-stress model. The computed results were compared with available experimental data for free mixing between two parallel streams with initial boundary layers at two different velocity ratios. The time-averaged velocities were in good agreement with both models. However, only the Reynolds-stress model gives good agreement for shear stress, and turbulent kinetic energy in the near-wake region. The empirical relation, that turbulent shear stress is proportional to the velocity gradient by an eddy viscosity, is not adequate in the near wake region.
S. C. Lee and B. Hong, "Comparison of Near-Wake Predictions Using Two-Equation µ Model and Reynolds-Stress Model," Proceedings of the 1993 ASME Winter Annual Meeting, American Society of Mechanical Engineers (ASME), Jan 1993.
1993 ASME Winter Annual Meeting
Mechanical and Aerospace Engineering
Keywords and Phrases
Boundary Layer Flow; Mixing; Stresses; Wakes
Article - Conference proceedings
© 1993 American Society of Mechanical Engineers (ASME), All rights reserved.