๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Application of a near-wall turbulence model to the flows over a step with inclined wall

โœ Scribed by Jong Woo Ahn; Tae Seon Park; Hyung Jin Sung


Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
746 KB
Volume
18
Category
Article
ISSN
0142-727X

No coin nor oath required. For personal study only.

โœฆ Synopsis


A nonlinear low-Reynolds-number k-e model of was extended to predict the flows over a step with inclined wall, where a boundary-layer flow without separation and a separated and reattaching flow coexist. For a better prediction of the flows, a slight modification was made on the function of wall damping f~ and the model constant C~1 in the s-equation. The model performance was validated by comparing the model predictions with the experiment. It was shown that the flows over a step with inclined wall are simulated successfully with the present model.


๐Ÿ“œ SIMILAR VOLUMES


The numerical computation of near-wall t
โœ Juliana B.R. Loureiro; Alexandre T.P. Alho; Atila P. Silva Freire ๐Ÿ“‚ Article ๐Ÿ“… 2008 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 482 KB

The present work performs a detailed comparison between numerical computations for the flow over a two-dimensional steep hill and some newly obtained laboratory data. Six turbulence models were tested: four eddy-viscosity models (k-, RNG-, k-o, SST) and two second-moment models (SSG-RSM-, BSL-RSM-o)

The method of boundary condition transfe
โœ S.V. Utyuzhnikov ๐Ÿ“‚ Article ๐Ÿ“… 2006 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 364 KB

Generalized wall functions in application to high-Reynolds-number turbulence models are derived. The wall functions are based on transfer of a boundary condition from a wall to some intermediate boundary near the wall (usually the first nearest to the wall mesh point but that is not obligatory). The

Development of a nonlinear near-wall tur
โœ Tae Seon Park; Hyung Jin Sung; Kenjiro Suzuki ๐Ÿ“‚ Article ๐Ÿ“… 2003 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 624 KB

A new nonlinear near-wall turbulence model is developed on the basis of realizability constraints to predict turbulent flow and heat transfer in strongly nonequilibrium flows. The linear k-e-f l model of Park and Sung (Fluid Dyn. Res., 20 (1997) 97) is extended to a nonlinear formulation. The stress