Paper Title: Development of a Mathematical Model for Performance Prediction of Planing Catamaran in Calm Water
A Ghassemzadeh, Sharif University of Technology, Iran
A Dashtimanesh and M Habibiasl, Persian Gulf University, Iran
P Sahoo, Florida Institute of Technology, USA
In this paper, an attempt has been made to predict the performance of a planing catamaran using a mathematical model. Catamarans subjected to a common hydrodynamic lift, have an extra lift between the two asymmetric half bodies. In order to develop a mathematical model for performance prediction of planing catamarans, existing formulas for hydrodynamic lift calculation must be modified. Existing empirical and semi-empirical equations in the literature have been implemented and compared against available experimental data. Evaluation of lift in comparison with experimental data has been documented. Parameters influencing the interaction between demi-hulls and separation effects have been analyzed. The mathematical model for planning catamarans has been developed based on Savitsky’s method and results have been compared against experimental data. Finally, the effects of variation in hull geometry such as deadrise angle and distance between two half bodies on equilibrium trim angle, resistance and wetted surface have been examined.
Transactions RINA, Vol 161, Part A2, International Journal Maritime Engineering, Apr - Jun 2019
DOI No: 10.3940/rina.ijme.2019.a2.538
Search and Order IJME papers
All International Journal of Maritime Engineering (IJME) papers are listed in the RINA Publications Database. You can search the database by author name and paper title. Publications may be ordered and paid for online. Other publications are also listed, some of which may be downloaded free of charge. Follow the link to Search Publications & Order.