Numerical analysis of effect of asymmetric stern of ship on its screw propeller efficiency

• Autorzy: Abramowski T. , Zelazny K. , Szelangiewicz T.
• Języki publikacji: EN

Abstrakty

EN

During designing the ship its designer tends to achieve as-high-as possible efficiency of ship’s propulsion system. The greatest impact on the efficiency is introduced by ship’s screw propeller whose efficiency depends not only on its geometry but also distribution of wake current velocity. To change wake current distribution and improve propeller efficiency an asymmetric form is usually applied to stern part of ship hull. This paper presents results of numerical analysis of wake current velocity distribution, performed by using a CFD method for a B 573 ship of symmetric stern and the same ship of an asymmetric stern. Next, the mean values of screw propeller efficiency in non-homogenous water velocity field were calculated for both the hull versions of B 573 ship

• Wydawca: -
• Czasopismo: Polish Maritime Research
• Rocznik: 2010
• Tom: 17
• Numer: 4
• Opis fizyczny: p.13-16,fig.,ref.

Twórcy

autor

Abramowski T.

• Faculty of Marine Technology, Szczecin University of Technology, al.Piastow 41, 71-065 Szczecin, Poland

autor

Zelazny K.

• Faculty of Marine Technology, Szczecin University of Technology, al.Piastow 41, 71-065 Szczecin, Poland

autor

Szelangiewicz T.

• Faculty of Marine Technology, Szczecin University of Technology, al.Piastow 41, 71-065 Szczecin, Poland

Bibliografia

• 1. Abramowski T., Szelangiewicz T.: Numerical analysis of influence of ship hull form modification on ship resistance and propulsion characteristics, Part I: Influence of hull form modification on ship resistance characteristics. Polish Maritime Research, No 4/2009, Gdańsk 2009
• 2. Abramowski T., Szelangiewicz T.: Numerical analysis of influence of ship hull form modification on ship resistance and propulsion characteristics, Part II: Influence of hull form modification on wake current behind the ship. Polish Maritime Research, No.1/2010, Gdańsk 2010
• 3. Abramowski T., Szelangiewicz T.: Numerical analysis of influence of ship hull form modification on ship resistance and propulsion characteristics, Part III: Influence of hull form modification on screw propeller efficiency. Polish Maritime Research, No. 1/2010, Gdańsk 2010
• 4. Collatz G., Laudan J.: Das asymmetrische Hinterschiff. Jahrbuch Shiffbautechn. Gesellschaft, 1984
• 5. Jaworski S., Syrocki W.: Ship B 573: Results of Model Test – Resistance, Wake Measurments. Technical Report No RH-95/T-041A, Ship Design and Research Centre, Gdańsk 1995
• 6. Nawrocki S.: The effect of asymmetric stern on propulsion efficiency from model test of a bulk carrier. Shiff und Hafen 10, 1987, p. 41
• 7. N.N.: Development of the asymmetric stern and service results. Naval Architect, 1989, p. E181
• 8. Nönnecke E.A.: Reduzierung des Treibstoffverbrauches und Senkung der Betriebskosten der Seeschiffe durch propulsionverbessernde Maβnahmen. Hansa, 1978, p. 176
• 9. Nönnecke E.A.: Schiffe mit treibstoffsparendem asymmetrischen Heck – Anwendungen und Efrahrungen. Shiff und Haffen, 9, 1978
• 10. Nönnecke E.A.: The asymmetric stern and its development since 1982. Shipbuilding Technology International, 1987, p. 31
• 11. Piskorz-Nałęcki J.W.: The influence of the asymmetric afterbody and the horizontal fins on the rudder blade on the propulsive efficiency, Workshop on Developments in Hull Form Design.Wageningen, The Netherlands, 22 ÷ 24 October 1985
• 12. Piskorz-Nałęcki J.W.: Stern part of ship’s hull. Patent specification (in Polish). Urząd Patentowy PRL (Polish Patent Office) No. 44 2
• 13, Warsaw 198813. Schneekluth H., Bertram V.: Ship Design for Efficiency and Economy. Butterworth Heinemann, Oxford 1998
• 14. Szelangiewicz T.: Numerical investigations of rudder/propeller/ship stern interaction aimed at improving transport ship’s propulsion and manoeuvrability qualities (in Polish). Final report of the R&D project No. R 10 008 01, Szczecin 2009.

Identyfikatory

DOI

10.2478/v10012-010-0030-3