Numerical Study of a Flap Rudder Based on Turbulence Model LES

Shu Guang Wu; Hean Liu

doi:10.4028/www.scientific.net/AMM.88-89.240

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 88-89Numerical Study of a Flap Rudder Based on...

Numerical Study of a Flap Rudder Based on Turbulence Model LES

Abstract:

The flap rudder flow field at Re 1.4×10⁶ is calculated using computational fluid dynamics (CFD) method. Large eddy simulation (LES) turbulence model is adopted. The results shows that boundary layer separation phenomenon appears in flap after the gap, and as angle of flap (AOF) is increased, the separation tends to asymmetry, the pressure fluctuation range is becomes higher. There is no eddy in gap when AOF is 0°, but as AOF increases, the eddy in gap appears because of the pressure difference between two sides of the rudder.

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Periodical:

Applied Mechanics and Materials (Volumes 88-89)

Pages:

240-243

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.88-89.240

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Online since:

August 2011

Authors:

Shu Guang Wu, Hean Liu

Keywords:

Computational Fluid Dynamics (CFD), Flap Rudder, Large Eddy Simulation (LES), Vorticity

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