Experimental Study of Hydrodynamics and Hydroacoustics of Marine Propellers
Abstract
The proposed research is organized into three major Tasks and a number of Subtasks.Design and construction of the propeller and hull models. The following propeller and hull model will be fabricated: scaled models of the E1619 propeller with exchangeable blades such to assemble different blade number configurations,scaled model of the DARPA Suboff, and 3) modified blade geometry of the E1619 propeller with load distribution concentrated in the tip sections.Hydrodynamics of the reference case. This task will focus on the fundamental underlying mechanisms of propeller wake evolution, instability and breakdown at different configurations and operating conditions. The focus will be on: 1) the number of blades of the propeller, 2) the load conditions at which propeller operates, 3) the distribution of the hydrodynamic load along the blade, 4) the characteristics of the propeller inflow (i.e. propeller operating in uniform inflow or in behind condition), 5) the effect of the free surface, and 6) the effect of a solid wall parallel to the propeller axis. Hydroacoustic survey of the reference case. This task will focus on the fundamental underlying mechanisms of propeller wake evolution, instability and breakdown at different configurations and operating conditions. In particular, these include: the number of blades of the propeller, the load conditions at which propeller operates, the distribution of the hydrodynamic load along the blade, the characteristics of the propeller inflow (i.e. propeller operating in uniform inflow or in behind condition), the effect of the free surface, and the effect of a solid wall parallel to the propeller axis.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Feb 07, 2017
- Source ID
- N629091512007
Entities
People
- Mario Felli
Organizations
- Office of Naval Research
- United States Navy