Multiphase flows in ship hydrodynamics
Title: Multiphase flows in ship hydrodynamics
SNIC Project: SNIC 2020/14-18
Project Type: SNIC Small Storage
Principal Investigator: Rickard Bensow <rickard.bensow@chalmers.se>
Affiliation: Chalmers tekniska högskola
Duration: 2020-03-31 – 2021-02-01
Classification: 20303
Keywords:

Abstract

The storage project will support the usage in the compute project SNIC 2020/5-65, where work with several problems related to multiphase flow problems in ship hydrodynamics. Part of the work incorporates research related to cavitating nuisance, and part of the work concerns work on drag reduction by air lubrication. The research to be performed related to this project are: - Simulations for assessment of cavitation erosion in a water jet pump using LES. - Development of a hybrid mixture/bubble LES model for cavitation. - Assessment of pressure pulses from a cavitating propeller using RANS. - Air lubrication of ships using LES. - Effects of surface roughness on the strength of propeller tip vortex cavitation. - Development hybrid RANS/LES methods for ship propulsion applications. Funding for the research comes from Swedish Energy Agency, VINNOVA, and Kongsberg.