Abstract:
Numerical prediction of added resistance of a ship in waves has always
been the most di cult and challenging task for Naval Architects.
Researchers are continuously making e orts for better prediction of
added resistance of ships in waves. Unfortunately none of the existing
methods available for determining the added resistance of ships in
waves are convincingly accurate, in particular over the range of wavelengths
which are short compared to the length of a ship.
In this thesis a method for prediction of added resistance due to short
waves, which is attributed as added resistance due to wave re
ection
has been proposed by the Author and a computer code has also
been developed based on the proposed method. The total added resistance
is obtained by adding the added resistance due ship motion
by Maruo's method with that of added resistance due to wave re
ection
by Author's method. The computations are made for series 60
ships, parent form, SR108 container ship and KVLCC2 and the results
are presented in non-dimensional forms. The computed outputs
by Author's method have been veri ed with published theoretical and
experimental results. Several case studies have also been made to
show the e ect of di erent parameters like wave length to ship length
ratios, ship speed, wave heading, block coe cient and draft on added
resistance of ship in waves.
