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Aerospace Engineering

Paul A. Durbin

Selected Works

2001

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Full-Text Articles in Engineering

Rough Wall Modification Of Two-Layer K-E, Paul A. Durbin, G. Medic, J.-M. Seo, J. K. Eaton, S. Song Mar 2001

Rough Wall Modification Of Two-Layer K-E, Paul A. Durbin, G. Medic, J.-M. Seo, J. K. Eaton, S. Song

Paul A. Durbin

A formulation is developed to apply the two-layer k-ε model to rough surfaces. The approach involves modifying the ℓv formula and the boundary condition on k. A hydrodynamic roughness length is introduced and related to the geometrical roughness through a calibration procedure. An experiment has been conducted to test the model. It provides data on flow over a ramp with and without surface roughness.

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