Towards CFD Analysis of Complete Helicopter Configurations

摘要

Recent progress in CFD allows for complex computations of the flow around complete helicopters. Such flows are rich in flow physics with several phenomena co-existing at any given time within the flow-field. To enhance confidence in the fidelity of the computations, a step-by-step approach is needed where individual aspects of the physics are first simulated building towards the computation of the flow around a full helicopter. In this paper, the validation of the Helicopter Multi-Block solver of Liverpool is presented for cases including dynamic stall, shock-boundary layer interaction, blade-vortex interaction, and tip flow. From that point, hovering and forward flying rotors are considered reaching a full helicopter configuration as investigate during the 6th Framework European research project GOAHEAD.