Computational Analysis of Cavitating Marine Propeller Performance using OpenFOAM
Conference contribution, 2015

In this paper, numerical results, based on implicit LES and transport equation mass transfer modelling approach, submitted to the Second International Workshop on Cavitating Propeller Performance at the Fourth International Symposium on Marine Propulsors (SMP’15) are presented. The numerical simulations are performed using OpenFOAM. The present work is focused on the second task of the workshop, Propeller in oblique flow inside tunnel in wetted and cavitating conditions. We summarise results from the three different operating conditions given in the task, where the experimental data of one condition is revealed, and the two other conditions are put forward as blind tests to workshop participants. For the condition where experimental data is known, we see good agreement for the forces in wetted conditions that slightly deteriorate in cavitating conditions. Cavitation extent is over predicted, where mid-span bubbly cavitation in the experiments is predicted as a sheet cavity; cavitation in the tip region does however seem reasonable. This is also likely the reason for the larger error in force prediction. A limited mesh resolution study has been performed.

OpenFOAM.

Numerical Simulation

Cavitation

Author

Abolfazl Asnaghi

Chalmers, Shipping and Marine Technology

Andreas Feymark

Chalmers, Shipping and Marine Technology

Rickard Bensow

Chalmers, Shipping and Marine Technology, Marine Technology

2nd International Workshop on Cavitating Propeller Performance

8-

Subject Categories

Mechanical Engineering

Other Engineering and Technologies

Marine Engineering

Areas of Advance

Transport

Energy

Infrastructure

C3SE (Chalmers Centre for Computational Science and Engineering)

More information

Created

10/8/2017