Chang Y.-C.,National Taiwan Ocean University |
Hu C.-N.,National Taiwan Ocean University |
Tu J.-C.,United Ship Design and Development Center Tamshui |
Chow Y.-C.,National Taiwan Ocean University
Journal of Hydrodynamics | Year: 2010
Multiple types of cavitation appearing on the surface of a marine propeller when the ship advances with high speed cause the decline of the propeller's performance and/or damages (erosions) to the propeller. Therefore, better understandings of the cavitation formations and the ability to predict them are important to a successful propeller design. This paper presents image results of cavitation incurred on the suction surfaces of a specific propeller and analyzes these images to obtain the statistical parameters of cavitations such as their sizes, locations, and occupied areas. These experimental results are used to evaluate the accuracy of the associated RANS simulations in order to identify issues of turbulence and cavitation models commonly used in such simulations. © 2010 Publishing House for Journal of Hydrodynamics.