NICOP PROUD (DIT.AD019.081)
Thematic area
Engineering, ICT and technologies for energy and transportation
Project area
Tecnologie Marittime (DIT.AD019)Structure responsible for the research project
Institute of Marine Engineering (INM)
Project manager
MARIO FELLI
Phone number: 0650299240
Email: mario.felli@cnr.it
Abstract
We propose a comprehensive experimental study of underlying mechanisms of propeller-appendage-hull interactions in steady drift conditions of a submerged vehicle. The main objectives of the research are:
1) to understand the fundamental mechanisms of the propeller wake instability in off-design conditions,
2) to assess the type and degree of influence that hull perturbation, onset flow unsteadiness, free surface and drift angle exert on the wake evolution,
3) to study the transient suction forces and moments and the effects on propeller performance in off-design conditions,
4) to understand the underlying mechanisms of the vehicle's response to propeller lateral forces and related moments due to off-design operations, and
5) to collect archival quality experimental data, including detailed flow measurements by advanced optical techniques, hull-pressure measurements, force and moment measurements on propeller and hull and free surface
elevation measurements, to assess the capability of numerical methods for the prediction of the propeller effects in off-design conditions.
Start date of activity
01/11/2018
Keywords
underwater vehicles, propeller in off-design, installation effects
Last update: 05/05/2024