THE PROBLEM OF INFLUENCE OF SOLID BOUNDARIES ON PROPELLER-INDUCED HYDRODYNAMIC FORCES
Describe a semi-empiric method, consisting of the multiplication of the pressure calculated in open water (without hull, but assuming the real wake) by a factor S, called "Solid Boundary Factor", acting for the presence of the hull. This factor S must be derived from comparisons between calculations and full scale measurements. The use of the empiric factor S permits valuable predictions for the pressure fluctuations, without needing extensive computing time once the variations of the factor are known: The necessity is to develop this knowledge by comparing as often as possible the full-scale pressure measurements and the calculations in open water. These comparisons must take care of different disturbing pressures, coming for instance from the general or local vibration of the afterbody. The aim in this paper is to introduce some elements to contribute to its development.
- Symposium on High Powered Propulsion of Large Ships, Part 2, December 10-13, 1974, Wageningen, Netherlands. Entire proceedings-2 volumes, 26 papers-available for $21.00.
Netherlands Ship Model BasinHaagsteed 2, P.O. Box 28
- Garguet, M
- Lepeix, R
- Publication Date: 1974-12
- Features: References;
- Pagination: 47 p.
- TRT Terms: Atmospheric pressure; Excitation; Force; Pressure fields; Propellers; Wakes
- Old TRIS Terms: Pressure fluctuations; Propeller excitation; Propeller induced forces; Wake analysis
- Subject Areas: Marine Transportation; Vehicles and Equipment;
- Accession Number: 00128939
- Record Type: Publication
- Source Agency: Netherlands Ship Model Basin
- Report/Paper Numbers: No. 490
- Files: TRIS
- Created Date: Feb 4 1976 12:00AM