Abstract
An approach to dealing with turbulent flows over a wall mounted cube using the wall y(+) (non-dimensional distance from the wall) as guidance in selecting the appropriate grid configuration and corresponding turbulence models is investigated using FLUENT 6.3. The study is divided into two sections Case I and Case II, dealing with low and high Reynolds numbers, respectively. Five turbulence models the standard k-epsilon, standard k-omega, Reynolds Stress Model (RSM), Spalart-Allmaras (SA) and rcnormalisation group (RNG) k-epsilon are used to solve the closure problem. Their behaviours, together with the accompanying near-wall treatments, are investigated for wall y(+) covering the viscous sub-layer, the buffer layer and the log-law region.
Original language | English |
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Pages (from-to) | 341-351 |
Number of pages | 11 |
Journal | Progress in Computational Fluid Dynamics, An International Journal |
Volume | 10 |
Issue number | 5-6 |
DOIs | |
Publication status | Published - 2010 |
Keywords
- wall y(+)
- wall mounted cube
- turbulent flow
- near-wall treatment
- grid generation
- LARGE-EDDY SIMULATION
- DEVELOPED CHANNEL FLOW
- HEAT-TRANSFER