Boundary layer control of twin skeg hull form with reaction podded propulsion

Research output: Contribution to conferencePaper

Abstract

The ZEUS (Zero Emission Ultimate Ship) project of the NMRI (National Maritime Research Institute) is very challenging and is unique from the view point of utilized technologies. This paper will introduce some innovative ideas, which are “reaction pod” and “jet-assist motor propulsion”. Reaction pod is a concept which can increase propulsive efficiency by using off-centered podded propulsors of twin skeg hull form. By putting the pods at the optimum position in the stern, a propeller can act as a contra-rotating propeller. Jet assist motor propulsion can be used for several objectives, such as prevention of flow separation, reducing stern vibration, improving course keeping ability, etc. This paper will explain these two new ideas by introducing model test data which were obtained from NMRI towing tank.
Original languageEnglish
Number of pages6
Publication statusPublished - Jun 2011
Event2nd International Symposium on Marine Propulsor, Hamburg(Germany),2011 June - Hamburg, Germany
Duration: 1 Nov 2011 → …

Conference

Conference2nd International Symposium on Marine Propulsor, Hamburg(Germany),2011 June
CountryGermany
CityHamburg
Period1/11/11 → …

Keywords

  • ZEUS (Zero Emission Ultimate Ship)
  • reaction pod
  • boundary layer control
  • zero emission
  • twin skeg hull

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  • Cite this

    Sasaki, N. (2011). Boundary layer control of twin skeg hull form with reaction podded propulsion. Paper presented at 2nd International Symposium on Marine Propulsor, Hamburg(Germany),2011 June, Hamburg, Germany.