Numerical Calculation of the Pressure Distributions on a Rudder Surface

Jing Ping Wu; Shun Huai Chen; Ji Cheng Xiao

doi:10.4028/www.scientific.net/AMR.562-564.1172

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 562-564Numerical Calculation of the Pressure...

Numerical Calculation of the Pressure Distributions on a Rudder Surface

Abstract:

This paper numerically calculates the pressure distributions of a rudder of a ship for structure strength design. The sections profile of the rudder is NACA0020 airfoil. The viscous flow is simulated by FLUENT commercial software, while the model and mesh is generated by GAMBIT software. A 2D viscous flow around a NACA0020 airfoil is calculated firstly. Some notices are given here about the magnitude of computing domain, the density distribution and the numbers of grid nodes on the airfoil surface in order to gain better results. Then, based on these experiences, the viscous flow around a 3D rudder is simulated. The calculated pressure coefficients on the rudder’s section are compared with the experiment results and BEM results of the potential theory. At the attack angles and , the three results agree well with each other. However, when the attack angle is , the viscous results from FLUENT give better agreement with the experiment results than the BEM results. This conclusion confirms that the viscosity effect is great in the case of large attack angles.

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Periodical:

Advanced Materials Research (Volumes 562-564)

Pages:

1172-1176

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.562-564.1172

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Online since:

August 2012

Authors:

Jing Ping Wu, Shun Huai Chen, Ji Cheng Xiao

Keywords:

Numerical Simulation, Pressure Distribution, Rudder, Viscous Flow

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References

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