Coupled CFD/CSD Investigation of the Effects of Leading Edge Slat on Rotor Performance

Abstract :-
This is Aerospace engineering project work on Coupled CFD/CSD Investigation. A coupled Computational Fluid Dynamic (CFD) and Computational Structural Dynamics (CSD) methodology is extended to research the effectiveness of a number one edge slat (LE-Slat) for mitigating the adverse effects of dynamic stall on aerofoil mechanics and dynamic response. This concerned the subsequent enhancements over the present CFD methodologyology to handle a multi-element device rotor: incorporating the questionable Implicit Hole Cutting method for inter-mesh property, implementing a generalized force transfer routine for transferring LE-Slat masses onto the most blade, and achieving exaggerated parallelization of the code.

The coupled CFD/CSD platform is further used to successfully show the capability of the slat (S-6) to achieve upto 10% higher thrust than C9017, which is beyond the conventional thrust limit imposed by McHugh’s stall boundary. Stall mitigation due to the slat results in a reduction of torsional load up to 54% and reduction of pitch link load up to 32% as compared to the baseline C9017 flight test values, even for an increase in thrust of 10%.

Author:- Mishra, Asitav


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