Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/12268
Title: On using the wall function and the staggered grid arrangement at upwind sharp convex corners in simulating approach air flow
Authors: Chow, WK 
Gao, Y
Keywords: Separation and reattachment
Staggered grids
Turbulent kinetic energy
Wall function
Issue Date: 2005
Source: International journal of computational fluid dynamics, 2005, v. 19, no. 5, p. 381-398 How to cite?
Journal: International Journal of Computational Fluid Dynamics 
Abstract: In simulating approach air turbulent flow towards a cube or a square rib with staggered grids, there might be problems in using wall function. This point will be studied in this paper. Upwind sharp convex corners will be analyzed in detail. Methods are proposed to give predicted results, which agree better with experiments. The value and position of the maximum turbulent kinetic energy kmax, and the mean pressure coefficient Cp are proposed to be correlated with the degree of separation and reattachment length ZR at the top of the bluff cube and rib for evaluating the predicted results. The standard k - ε model is suitable for predicting the degree of separation at the frontal sharp convex corners and reattachment length, provided that the wall functions are applied properly.
URI: http://hdl.handle.net/10397/12268
ISSN: 1061-8562
DOI: 10.1080/10618560500228065
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