Predication of 3-D Viscous Flowfield of a Centrifugal Impeller

DOI: 10.4236/epe.2011.31005   PDF   HTML     5,159 Downloads   8,913 Views  


A three-dimensional viscous code has been developed to solve Reynolds-averaged Navier-Stokes equations. The governing equations in finite volume form are solved by two-step Runge-Kutta scheme with implicit residual smoothing. The eddy viscous is obtained using the Baldwin-Lomax model. A prediction of the 3-D turbulent flow and the performance in the “all-over controlled vortex distribution” centrifugal impeller with a vaneless diffuser has been made for the compressor at design and off-design condition. The predicted effi-ciency is a little higher than the experiment data. These results suggest that the present calculation code is able to determine the flow development in the impeller and also the turbulence model in the centrifugal im-peller should be improved.

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L. Gao, X. Feng and J. Xie, "Predication of 3-D Viscous Flowfield of a Centrifugal Impeller," Energy and Power Engineering, Vol. 3 No. 1, 2011, pp. 29-33. doi: 10.4236/epe.2011.31005.

Conflicts of Interest

The authors declare no conflicts of interest.


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