Comparison of PANS and LES of the flow past a generic ship
Journal article, 2018

The prediction of flow past a generic ship has been performed using partially-averaged Navier–Stokes (PANS) turbulence model. The Reynolds number based on the width of the ship is . A detailed comparison with resolved large-eddy simulation (LES) solution and available experimental data is made for a better understanding of the capability of PANS in predicting the turbulent flow in the wake. The results show that PANS produces similar trends to those predicted by LES. However, a coarse grid resolution will lead PANS to act as unsteady Reynolds-averaged Navier–Stokes (URANS). Although the geometry is symmetric for the incoming flow at a zero yaw angle, bi-stable behaviour is observed in the wake, contributing to an asymmetric flow distribution on the heli-deck.

Bi-stability

PANS

Generic ship

LES

Separated flows

Author

Jie Zhang

Chalmers, Mechanics and Maritime Sciences, Fluid Dynamics

Guglielmo Minelli

Chalmers, Mechanics and Maritime Sciences, Fluid Dynamics

Anirudh Narayan Rao

Chalmers, Mechanics and Maritime Sciences, Fluid Dynamics

Rickard Bensow

Chalmers, Mechanics and Maritime Sciences, Marine Technology

Branislav Basara

AVL

Sinisa Krajnovic

Chalmers, Mechanics and Maritime Sciences, Fluid Dynamics

Ocean Engineering

0029-8018 (ISSN)

Vol. 165 221-236

Chalmers Area of Advance Transport - funding 2018

Chalmers, 2018-01-01 -- 2018-12-31.

Active flow control for reduced resistance of trains, trucks, and ships

Swedish Energy Agency, 2016-12-01 -- 2018-08-31.

Chalmers Area of Advance Transport - funding 2017

Chalmers, 2017-01-01 -- 2017-12-31.

Driving Forces

Sustainable development

Areas of Advance

Transport

Infrastructure

C3SE (Chalmers Centre for Computational Science and Engineering)

Subject Categories

Vehicle Engineering

Oceanography, Hydrology, Water Resources

Probability Theory and Statistics

DOI

10.1016/j.oceaneng.2018.07.023

More information

Latest update

12/10/2018