ABSTRACT

It has been more than a decade since Calisal et al. (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.