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International Journal of Turbomachinery, Propulsion and Power, Volume 4, Issue 2
June 2019 - 10 articles
Cover Story: The Axial Momentum Theory (AMT), which relies on the uniformly loaded actuator-disk model without wake rotation, is still considered a touchstone in the theoretical aerodynamics of propellers. However, to simplify the model, the flow is generally supposed to be one-dimensional. The errors introduced by this assumption are evaluated by comparing the results of the AMT with those of a nonlinear method modelling the free wake as the superposition of ring vortices distributed along the wake boundary. The comparison shows that, for a highly loaded propeller, the flow is not one-dimensional and significant errors exist in the axial velocity at the disk, especially near the tip. View this paper.
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Int. J. Turbomach. Propuls. Power - ISSN 2504-186X