Time-Accurate versus Actuator Disk Simulations of Complete Helicopters

Walid Khier ()
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Walid Khier: DLR, Institute of Aerodynamics and Flow Technology

A chapter in High Performance Computing in Science and Engineering’ 05, 2006, pp 209-220 from Springer

Abstract: Summary This report describes numerical simulation of the flow around helicopter fuselage-main rotor-tail rotor configurations using the quasi-steady actuator disk approach and the time-accurate simulation that resolves the relative motion of the main and tail rotors with respect to the fuselage. The computations predict both the instantaneous and quasi-steady flow fields by solving the Reynolds-averaged Navier-Stokes (RANS) equations in three dimensions using a finite volume method and block structured grids. Turbulence effects are taken into account via a two-equation k — ω model. The motion of the rotors was accomplished by an overlapping grid technique (Chimera). The DLR. CFD code FLOWer was applied in parallel mode to obtain the solution at each time step. The computations were performed on 8 processors of the NEC-SX6 at Höchstleistungsrechenzentrum Stuttgart (HLRS)

Keywords: Mach Number; Main Rotor; Tail Rotor; Wind Tunnel Model; Background Grid (search for similar items in EconPapers)
Date: 2006
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-540-29064-3_16

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DOI: 10.1007/3-540-29064-8_16

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