Initial RANS and DDES of a Rudimentary Landing Gear
Results of RANS and Delayed Detached Eddy Simulation (DDES) are presented for a new research model of landing gear. The design is as simple as that of Lazos but a primary motivation for it is a weak and well-understood Reynolds-number dependence. The simplicity should allow essentially grid-converged RANS-LES solutions now or within a few years, but it preserves some physics, which challenge CFD, in a manner meaningful to noise-prediction capability for landing gear. The initial simulations presented in this work parallel an experimental study launched recently at NAL (India). A major goal of the simulations is to verify the potential of the RLG geometry in terms of CFD validation and to attract the attention of the turbulence and airframe noise communities to the experimental database, which will be available in the near future. The principal early challenge to CFD is to predict the wall-pressure fluctuations. Far-field noise will be addressed later.
KeywordsLanding Gear Wheel Surface Detach Eddy Simulation Delay Detach Eddy Simulation RANS Computation
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