CFD for catamaran with asymmetric hulls

Abstract

The purpose of this paper is the study and investigation resistance of asymmetrically hulled catamaran using CFD technique in calm water. Resistance or drag is an important factors in ship design, in particular about the development of more efficient and environmentally friendly vessels. The resistance investigation of the conversion vessel is carried out by Computational Fluid Dynamics (CFD) approach and this is combined with both of thin ship theory and the extension of Michelle theory. In terms of mathematical calculation, the results between CFD and the combination of empirical formulas and slender body theory shows such a good agreement and the difference between the two is less than 12%. One of the design challenges faced by naval architects is the accurate prediction of hull resistance characteristics to which affects the power requirements corresponding to Froude number range.