Numerical prediction of small scale cavities using a coupled mixture-bubble model
Paper i proceeding, 2019

In this study a hybrid Eulerian mixture - Lagrangian bubble model is developed for numerical simulation of cavitating flows. In this model, the large scale cavities are represented in the Eulerian framework using the homogeneous mixture model, while the small sub-grid structures are tracked as Lagrangian bubbles. Also, at each time step small cavity structures in the Eulerian framework are transformed to the Lagrangian framework to be treated as sub-grid bubbles and vice versa. Using this model, it is possible to represent various cavity structures of different length scales with reasonable computational cost.

Multi-scale model

Cavitation

Eulerian-Lagrangian model

Homogeneous mixture model

Författare

Ebrahim Ghahramani

Chalmers, Mekanik och maritima vetenskaper, Marin teknik

Rickard Bensow

Chalmers, Mekanik och maritima vetenskaper, Marin teknik

10th International Conference on Multiphase Flow, ICMF 2019
Rio de Janeiro, Brazil,

CaFE

Europeiska kommissionen (Horisont 2020), 2015-01-01 -- 2019-01-01.

Styrkeområden

Transport

Ämneskategorier

Teknisk mekanik

Strömningsmekanik och akustik

Infrastruktur

C3SE (Chalmers Centre for Computational Science and Engineering)

Mer information

Skapat

2019-06-11