Study and analysis of the flow and cavitation field around the NACA0018 rudder using CFD

Authors

  • Ghaeth Mayhoub Tishreen University
  • Michel Barbahan Tishreen University
  • Sayr Sliba Tishreen University

Abstract

This research studied and analyzed the flow and cavitation field around the NACA0018 rudder. Firstly, numerical calculations were performed using CFD on the NACA0018 wing experimentally tested by Gim 2013 [1] with different Angles of Attack (AoA). Comparison between the numerical and experimental results showed the accuracy of the CFD technique in performing such calculations. The URANS equations (Unsteady RANS Averaged Navier Stocks Equation) and the  turbulence model were used to solve the Navier-Stokes equations governing complex flows. CFD was then used to calculate and analyze the flow around the rudder of the KVLCC2 ship with different AoA and at different Froude numbers. The results of this study confirmed that with a small AoA of the rudder  10 degrees, the flow around the rudder body remains stable, and no reverse flow is formed behind the rudder, while with a large AoA, the area of reverse flow behind the rudder increases, and after AoA 22.5 degrees, the effectiveness of the rudder begins to decrease. The results confirmed that the cavitation formation around the rudder is related to both the AoA and the critical cavitation number, as a decrease in the value of the critical cavitation number greatly increases the probability of cavitation formation around the rudder.

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Published

2024-11-03

How to Cite

1.
ميهوب غ, ميشيل بربهان, سائر صليبه. Study and analysis of the flow and cavitation field around the NACA0018 rudder using CFD. Tuj-eng [Internet]. 2024Nov.3 [cited 2024Dec.27];46(4):259-7. Available from: https://journal.tishreen.edu.sy/index.php/engscnc/article/view/17216

Issue

Vol. 46 No. 4 (2024): Tishreen University Journal of Research and Scientific Studies - Engineering Sciences Series

Section

Articles

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Copyright (c) 2024 https://creativecommons.org/licenses/by-nc-sa/4.0/

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