@Article{,
title={Low Reynolds number k-ε modeling by using the direct numerical simulation (DNS) data نموذج k-ε لأعداد رينولد منخفضة باستخدام بيانات المحاكاة المباشرة,
author={Ahmed Abdul-Hussein Ouda ,
journal={JOURNAL OF THI-QAR SCIENCE مجلة علوم ذي قار,
volume={1,
number={1,
pages={48-65,
year={2008,
abstract={The constant Cµ and the near-wall damping function fµ in the eddy-viscosity relation of the k-ε model are evaluated from direct numerical simulation (DNS) data for developed channel and boundary-layer flow, each at two Reynolds numbers. Various existing fµ model functions are compared with the DNS data, and a new function is fitted to the high-Reynolds-number channel flow data. The ε-budget is computed for the fully developed channel flow. The relative magnitude of the terms in the ε-equation is analyzed with the aid of scaling arguments, and the parameter governing this magnitude is established. Models for the sum of all source and sink terms in the ε-¬ equation are tested against the DNS data, and an improved model is proposed.
}