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Viscous Flow Analysis for the Rudder Section Using FLUENT Code

FLUENT 코드를 이용한 타 단면의 점성 유동 해석

  • Published : 2003.08.01

Abstract

Lately, the cavitation and erosion phenomena in the rudder have been increased for high-speed container ships. However, cavitation is not prone to occur in model experiments because of low Reynolds number. In order to predict the cavitation phenomena, the - analysis of the viscous flow in the rudder gap is positively necessary In this study, numerical calculation was applied to the two-dimensional flow around the rudder gap using FLUENT code. The velocity and pressure field were numerically acquired and cavitation phenomena could be predicted. And the case that the round bar was installed in the rudder gap was analyzed. For reducing the acceleration force when fluid flow through the gap, modified rudder shape is proposed, It is shown that modified rudder shape restrain the pressure drop at the entrance of the gap highly both in the computational results and in the model experiment, and reduce the cavitation bubbles.

Keywords

References

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Cited by

  1. Numerical study on the gap flow of a semi-spade rudder to reduce gap cavitation vol.15, pp.1, 2010, https://doi.org/10.1007/s00773-009-0075-0