Comparison of PANS and LES of the flow past a generic ship
Artikel i vetenskaplig tidskrift, 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

Författare

Jie Zhang

Chalmers, Mekanik och maritima vetenskaper, Strömningslära

Guglielmo Minelli

Chalmers, Mekanik och maritima vetenskaper, Strömningslära

Anirudh Narayan Rao

Chalmers, Mekanik och maritima vetenskaper, Strömningslära

Rickard Bensow

Chalmers, Mekanik och maritima vetenskaper, Marin teknik

Branislav Basara

AVL

Sinisa Krajnovic

Chalmers, Mekanik och maritima vetenskaper, Strömningslära

Ocean Engineering

0029-8018 (ISSN)

Vol. 165 221-236

Chalmers styrkeområde Transport – finansiering 2018

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

Aktiv strömningskontroll för minskat motstånd för tåg, lastbilar och fartyg

Energimyndigheten, 2016-12-01 -- 2018-08-31.

Chalmers styrkeområde Transport – finansiering 2017

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

Drivkrafter

Hållbar utveckling

Styrkeområden

Transport

Infrastruktur

C3SE (Chalmers Centre for Computational Science and Engineering)

Ämneskategorier

Farkostteknik

Oceanografi, hydrologi, vattenresurser

Sannolikhetsteori och statistik

DOI

10.1016/j.oceaneng.2018.07.023

Mer information

Senast uppdaterat

2018-12-10