The Exact Calculation of the Added Resistance in Waves

Abstract

The exact calculation of the added resistance in waves is a seakeeping problem of high interest due to economic effect on ship exploitation. In this paper an open uniform B-spline based method is developed to calculate added resistance. Initially this method applied to calculate velocity potential and Kochin functions that are necessary for calculation of the added resistance by Kashiwagi’s formula. For this purpose the source strength and potential are distributed over body surface and described Open-uniform B-spline basic function. Computations are performed for different hull forms then results are validated by comparing them with practical results. The present method shows a good agreement in contrast to published results.