Rough wall modification of two-layer k-epsilon

Authors
Durbin, PA Medic, G Seo, JM Eaton, JK Song, S
Citation
Pa. Durbin et al., Rough wall modification of two-layer k-epsilon, J FLUID ENG, 123(1), 2001, pp. 16-21
Citations number
13
Categorie Soggetti
Mechanical Engineering
Journal title
JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME
ISSN journal
00982202 → ACNP
Volume
123
Issue
1
Year of publication
2001
Pages
16 - 21
Database
ISI
SICI code
0098-2202(200103)123:1<16:RWMOTK>2.0.ZU;2-5
Abstract
A formulation is developed to apply the two-layer k - epsilon model to roug h surfaces. The approach involves modifying the / (v) formula and the bound ary condition on k. A hydrodynamic roughness length is introduced and relat ed to the geometrical roughness through a calibration procedure. An experim ent has been conducted to test the model. It provides data on flow over a r amp with and without surface roughness.