The low speed flow through the shrouded de-Havilland Ghost centrifugal impeller is computed using an incompressible elliptic calculation procedure. The three dimensional viscous flow equations are solved using the SIMPLE algorithm in an arbitrary generalised coordinate system. A non-staggered grid arrangement is implemented in which pressure oscillations are eliminated using an amended pressure correction scheme. Flow computations are performed at ‘nominal’ low speed design and above design flow rates, and (on the coarse grids used in the calculations) good agreement is obtained with the experimentally observed jet-wake structure of the flow.
Computation of the Jet-Wake Flow Structure in a Low Speed Centrifugal Impeller
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Lapworth, BL, & Elder, RL. "Computation of the Jet-Wake Flow Structure in a Low Speed Centrifugal Impeller." Proceedings of the ASME 1988 International Gas Turbine and Aeroengine Congress and Exposition. Volume 1: Turbomachinery. Amsterdam, The Netherlands. June 6–9, 1988. V001T01A076. ASME. https://doi.org/10.1115/88-GT-217
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