URANS approach in hull-propeller-rudder interaction of a surface combatant at high speed

Suleyman Duman, Savas Sezen, Sakir Bal

Research output: Contribution to conferencePaper

Abstract

The assessment of hydrodynamic performance of self-propelled ships at higher speeds has become a popular research field in recent years. The presence of a propeller working behind the ship causes several effects, e.g., changing the resistance of the ship or the lift generated by the rudder/s. The free surface deformations in the wake-field are also affected by the propeller and the rudder/s. In this study, the hull-propeller-rudder interactions of the surface combatant DDG51 (Guided Missile Destroyer) in 1/46.588 model scale, which is known as DTMB5512 (David Taylor Model Basin) in literature, have been investigated using unsteady RANS (Reynolds-averaged Navier-Stokes) approach coupled with the body force method. The computational domain has been discretized using the finite volume method (FVM). Free surface effects have been taken into account using volume of fluid (VOF) method. Hydrodynamic analyses have been carried out for a relatively higher Froude number and the hull is considered as fixed during the analyses. Open water hydrodynamic performance of marine propeller (DTMB4058) has also been investigated. First, the computational results have been compared with the experimental ones. After validation, twin-rudder and twin-inward-propeller have been implemented. Pressure distributions on the hull, wave deformations in the wake-field and the changes of the drag force with or w/o rudder and propeller have been investigated.
Original languageEnglish
Publication statusPublished - 25 Oct 2017
Event11th Symposium on High Speed Marine Vehicles - Naples, Italy
Duration: 25 Oct 201726 Oct 2017
https://www.rina.org.uk/HSMV_2017.html

Conference

Conference11th Symposium on High Speed Marine Vehicles
Abbreviated titleHSMV 2018
CountryItaly
CityNaples
Period25/10/1726/10/17
Internet address

Keywords

  • hydrodynamic performance
  • self-propulsion
  • hull-propeller-rudder interactions

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    Duman, S., Sezen, S., & Bal, S. (2017). URANS approach in hull-propeller-rudder interaction of a surface combatant at high speed. Paper presented at 11th Symposium on High Speed Marine Vehicles, Naples, Italy.