Title

Comparison of Near-Wake Predictions Using Two-Equation µ Model and Reynolds-Stress Model

Abstract

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.

Meeting Name

1993 ASME Winter Annual Meeting

Department(s)

Mechanical and Aerospace Engineering

Keywords and Phrases

Boundary Layer Flow; Mixing; Stresses; Wakes

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1993 American Society of Mechanical Engineers (ASME), All rights reserved.

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