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International Journal of Turbomachinery, Propulsion and Power
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International Journal of Turbomachinery, Propulsion and Power, Volume 7, Issue 3

2022 September - 7 articles

Cover Story: The topological analysis of the average flow field, computed from wall-resolved unsteady Reynolds-Averaged Navier–Stokes (URANS) simulations, demonstrates that the saddle point (major critical point) in the corner hub/suction side of the stalled blade migrates upstream, while staying in the corner if the mass flow rate decreases. One main blade over two is stalled on both sides because the flow that originates from this corner separation circumvents the trailing edge and migrates upstream along the pressure side. In the simulation, the pulsation of the alternate stall is coupled with the reflection of acoustic waves on the inlet and outlet planes, which is regarded as an environmental effect. View this paper
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Int. J. Turbomach. Propuls. Power - ISSN 2504-186X
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