Computation of the incompressible viscous -flow around a tractor thruster using a sliding-mesh technique

Antonio Sanchez-Caja, Patrik Rautaheimo, Esa Salminen, Timo Siikonen

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

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Abstract

The unsteady flow around a tractor thruster is simulated by solving the RANS equations with a sliding mesh technique. A muitiblock Navier-Stokes solver (FINFLO) developed at Helsinki University ofTechnology is used in the calculations. In this paper a computational method with special emphasis on the sliding"mesh technique is described. The flow over a BB series propeller is analysed and a comparison with experimental data is made. This calculation is made with a fine grid and used as a reference for the rest ofthe computations, where the flow around the tractor thruster is simulated. The thruster consists of the BB-series propeller, a pod and a strut. The sliding surface is located between the propeller and strut. The calculations are performed in two different ways. In the first case the flow quantities are circumferentially averaged on the sliding surface in order to reduce computing time. The second calculation is time-accurate.
Original languageEnglish
Title of host publicationProceedings of 7th International Conference on Numerical Ship Hydrodynamics
EditorsJ. Piquet
PublisherU.S. Office of Naval Research (ONR)
Number of pages12
Publication statusPublished - 1999
MoE publication typeA4 Article in a conference publication
Event7th International Conference on Numerical Ship Hydrodynamics - Nantes, France
Duration: 19 Jul 199922 Jul 1999

Conference

Conference7th International Conference on Numerical Ship Hydrodynamics
Country/TerritoryFrance
CityNantes
Period19/07/9922/07/99

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