| dc.description.abstract | Abstract: The pressure acts on the wetted surface
area of the vessel always maintains the
equilibrium with the weight of the vessel. The
acting pressure comprises with two elements as
hydrostatic, relates to buoyancy and
hydrodynamic, relates to speed of the vessel. The
authors involved in planned novel design of this
monohull Coastal Patrol Craft with unknown
capabilities of the dynamic behaviour with
planing at initial stage. The research objectives
were to, estimate the total weight, compare
resistance for different LCG positions, and the
dynamic wetted area comparison for different
LCG positions, Effective power demand
comparison for different LCG positions, dynamic
trim comparison for different LCG positions, and
planing capabilities for different LCG positions.
Five different LCG positions were considered
during the study to realize the craft’s behaviour.
According to the numerical approach, craft’s
behaviours explored with the change in LCG
positions and anticipated effect on the resistance,
effective power demand, dynamic trim, and
planing capabilities. Based on the results, a small
initial trim angle is required for the CPC to display
optimal performance at speeds in the upper range
of the planing regime. On the other hand, an initial
trim by aft would increase the performance of the
CPC at speeds lower than the planing region but
would adversely affect the performance at higher
speeds as the trim further increases due to
dynamic behaviour. Further, this increase in trim
at higher speeds would result in dynamic
instability and be detrimental to the performance
of the craft. | en_US |
