Abstract
This paper describes the effect of non-orthogonal grids on both spray and air flow predictions, and the effect of higher order convection scheme on inclined grids. In order to assess the effect of non-orthogonality of grids a number of different grid cases are generated, and applied to the same conditions of injected sprays. The effects on the free/wall spray penetration and Sauter mean diameter (SMD) are discussed. The results show that the numerical error is increased with increasing non-orthogonality, and that Hybrid is better than QUICK for the calculation of sprays on inclined grids. For the calculation of the spray injection, which has always large gradient regions at the front end, adaptive grids following the direction of spray/ gas flow might be required.
Published Version
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