Measurements of Propeller Inflow During Transient Turning of a Ship Model by Fiber Optic LDV
Abstract
A fiber optic Laser Doppler Velocimetry system was developed for the flow measurement around a ship model in the towing tank. The system was used to measure unsteady flow in front of an operating propeller in the turning condition of a ship model in order to grasp the characteristics of propeller inflow field during the transient turning motion. From the measured data, it is found that the propeller, inflow field changes complicatedly with heading angle of the ship model during the transient turning motion, and the axial velocity gradient in circumferential direction becomes steeper as a whole. The present measured data are considered to be useful to understand the characteristics of propeller inflow in the transient turning condition and to develop more precise prediction method of ship maneuvering motion and propeller vibratory forces.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 23, 1992
- Accession Number
- ADP008972
Entities
People
- Hiroshi Matsuo
- Tetsuo Nagamatsu
Organizations
- Mitsubishi Heavy Industries