Turbulent Couette Flow:An analytical solution

Khanh Tuoc Trinh

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arXiv · 1009.0969

Turbulent Couette Flow:An analytical solution

Khanh Tuoc Trinh

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Abstract

A simple analytical solution for turbulent plane Couette flow is obtained from a subset of the Navier-Stokes equations. This approach analyses the effect of the unsteady state Lagrangian diffusion of viscous momentum on the smoothed phase velocity. Three initial velocity profiles at the start of a turbulent wall cycle are considered. The predictions adequate identify the existence of three layers usually observed in turbulent flow fields, in particular a viscosity dominated wall layer and a log-law layer. Experimental measurements of time-averaged velocity are also well correlated. Key words: Couette flow, turbulent, attractors, analytical solution, Lagrangian partial derivative, time scale, initial conditions

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Khanh Tuoc Trinh. 2011-04-21. Turbulent Couette Flow:An analytical solution. https://arxiv.org/abs/1009.0969

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