Resistance Reduction Studies by Means of Increasing the Beam with Waterline Parabolization

Authors : Devrim Bülent DANIŞMAN, Ömer GÖREN, Sander ÇALIŞAL

Pages : 66-79

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Publication Date : 2017-04-03

Article Type : Research Paper

Abstract :It has been more than a decade since Calisal et al. insert ignore into journalissuearticles values(2002); proposed the concept of reduction of the resistance by increasing the beam. Although this is a controversial concept compared to the traditional approach which adopts that the coefficients of residual resistance vary with the beam to the power of 2. The authors, during the course of resistance reduction studies, have disclosed that the new present concept has the ability to reduce the resistance for the Froude number interval of 0.2 – 0.4. Accordingly, a review of the authors’ previous work is presented here from the resistance point of view as well as from the seakeeping point of view. Moreover, the production cost due to increasing the beam is also examined and explained. The studies presented include mathematical, computational and experimental results. 
Keywords : Hull form optimization, beam increment, waterline parabolization, wave resistance, cost analysis