A proposal of ship gas-turbine driven waterjet propulsion - preliminary considerations

• Autorzy: Próchnicki W.
• Języki publikacji: EN

Abstrakty

EN

In the paper are presented preliminary considerations concerning the efficiency of waterjet ship propulsion system, as well as the calculation of main dimensions of waterjet channel. The friction and momentum losses of the flow channel have been roughly estimated by using Fliegner s equations. An important conclusion is confirmed that the summary losses are inversely proportional to square of ship velocity (~1/u2). On the other hand the ship propulsion power is directly proportional to third power of ship velocity (~u3). Therefore to minimize ship s hull resistance, hulls of water jet-driven ships ought to be of a great slenderness - e.g. L/B = 15, stabilized by sponsons, or of semi-swath hydrofoil-supported construction.

Słowa kluczowe

EN

ship propulsion; hydromechanics; waterjet

• Wydawca: Gdańsk University of Technology, Faculty of Ocean Engineering & Ship Technology
• Czasopismo: Polish Maritime Research
• Rocznik: 2004
• Tom: S 1
• Strony: 79--82
• Opis fizyczny: Bibliogr. 6 poz., rys., tab.

Twórcy

autor

Próchnicki W.

• Gdańsk University of Technology

Bibliografia

• 1. Allison J.: Waterjet Selection and Performance at Model and Full-Scale for the Advanced Material Transporter (AMI), 1991
• 2. Blount D.L., Grossi L., Lauro G.: Sea Trials and Model Ship Correlation Analysis of the High Speed Gas Turbine Vessel „Destriero". FAST'91. Trondheim, June 1991
• 3. Centkowski J.: Problems in research and design of waterjet propulsors (in Polish). III Symposium on ship hydromechanics. Gdańsk, 1975
• 4. Łazarkiewicz S., Troskliański A.: Impeller pumps (in Polish). Scientific-Technical Publishing House (WN-T). Warszawa. 1968
• 5. Troskolański A.T.: Hydromechanics (in Polish). Scientific-Technical Publishing House (WN-T). Warszawa, 1969
• 6. Shipping 600 TEU transpacific at 64 knots. Naval Architecture. November 2001.