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Turbulent flow around a wall-mounted cube : A direct numerical simulation
| Content Provider | Semantic Scholar |
|---|---|
| Author | Yakhot, A. Liu, Heping Nikitin, Nikolay |
| Copyright Year | 2006 |
| Abstract | An immersed-boundary method was employed to perform a direct numerical simulation (DNS) of flow around a wall-mounted cube in a fully developed turbulent channel for a Reynolds number Re = 5610, based on the bulk velocity and the channel height. Instantaneous results of the DNS of a plain channel flow were used as a fully developed inflow condition for the main channel. The results confirm the unsteadiness of the considered flow caused by the unstable interaction of a horseshoe vortex formed in front of the cube and on both its sides with an arch-type vortex behind the cube. The time-averaged data of the turbulence mean-square intensities, Reynolds shear stresses, kinetic energy and dissipation rate are presented. The negative turbulence production is predicted in the region in front of the cube where the main horseshoe vortex originates. 2006 Elsevier Inc. All rights reserved. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.bgu.ac.il/~yakhot/homepage/publications/IJHFF_2006.pdf |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Computer simulation Control theory Cube Dosage Form Direct numerical simulation Horseshoe map Immersed boundary method Kinetics Numerical analysis Turbulence Unstable Medical Device Problem Velocity (software development) Vortex |
| Content Type | Text |
| Resource Type | Article |
