A Mixing-Length Model for the Prediction of Convex Curvature Effects on Turbulent Boundary Layers

Author:

Adams E. W.1,Johnston J. P.1

Affiliation:

1. Heat Transfer and Turbulence Mechanics Group, Thermosciences Division of Mechanical Engineering, Stanford University, Stanford, Calif. 94305

Abstract

A mixing-length model is developed for the prediction of turbulent boundary layers with convex streamwise curvature. For large layer thickness ratio, δ/R > 0.05, the model scales mixing length on the wall radius of curvature, R. For small δ/R, ordinary flat wall modeling is used for the mixing-length profile with curvature corrections, following the recommendations of Eide and Johnston [7]. Effects of streamwise change of curvature are considered; a strong lag from equilibrium is required when R increases downstream. Fifteen separate data sets were compared, including both hydrodynamic and heat transfer results. In this paper, six of these computations are presented and compared to experiment.

Publisher

ASME International

Subject

Mechanical Engineering,Energy Engineering and Power Technology,Aerospace Engineering,Fuel Technology,Nuclear Energy and Engineering

Cited by 5 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Streamwise Curvature Effect on the Incompressible Turbulent Mean Velocity Over Curved Surfaces;Journal of Fluids Engineering;2000-02-14

2. Complex Effects in Turbulent Flows;Turbulent Flows;1999

3. Turbulence modeling with application to turbomachinery;Progress in Aerospace Sciences;1996-12

4. Thermophoretic deposition near the leading edge of cylindrical surfaces;International Journal of Heat and Mass Transfer;1991-01

5. Convective Heat Transfer with Film Cooling Around a Rotor Blade;Modern Research Topics in Aerospace Propulsion;1991

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