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Journal of the Brazilian Society of Mechanical Sciences

Print version ISSN 0100-7386

Abstract

DESCHAMPS, C. J.; PRATA, A. T.  and  FERREIRA, R. T. S.. Modeling of turbulent flow through radial diffuser. J. Braz. Soc. Mech. Sci. [online]. 2000, vol.22, n.1, pp. 31-41. ISSN 0100-7386.  http://dx.doi.org/10.1590/S0100-73862000000100003.

The work considers the modeling of turbulent flow in radial diffuser with axial feeding. Due to its claimed capability to predict flow including features such as separation, curvature and adverse pressure gradient, the RNG k-e model of Orzag et al. (1993) is applied in the present analysis. The governing equations are numerically solved using the finite volume methodology. Experiments were conducted to assess the turbulence model. Numerical results of pressure distribution on the front disk surface for different flow conditions when compared to the experimental data indicated that the RNG k-e model is adequate to predict this class of flow.

Keywords : Turbulence; RNG k-emodel; Radial Diffuser.

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