Title:	Multiphase flows in ship hydrodynamics
DNr:	SNIC 2018/3-679
Project Type:	SNIC Medium Compute
Principal Investigator:	Rickard Bensow <rickard.bensow@chalmers.se>
Affiliation:	Chalmers tekniska högskola
Duration:	2019-02-01 – 2020-02-01
Classification:	20303
Keywords:

Abstract

In the simulation work in this project, we will work with several problems related to multiphase flow problems in ship hydrodynamics. Part of the work incorporates previous research related to cavitating nuisance, and part of the work concerns renewed work on drag reduction by air lubrication. The need for resources is expected to increase compared with SNIC2018/3-414 as one of the PhD students that previously only ran test cases will now start running production work and the two postdocs (of which one is new) have increased simulations campaigns during 2019. 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 Rolls-Royce.