Title : ( Simulation of 3-D Cavitation behind a Disk Cavitator using Different Turbulence/Mass Transfer Models )
Authors: Amin Rahimi , mohammad reza pendar , Ehsan Roohi ,
Full TextAbstract
In this paper simulation of cavitating and supercavitating flow behind the three-dimensional disk cavitator is reported. The volume of fluid (VOF) method is applied to track the interface of liquid and vapor phases. Different kinds of turbulence models such as large eddy simulation (LES), SST are used. LES turbulence model is the most favored for the cavitation dynamics simulation purposes. Additionally, different types of mass transfer models such as Kunz, Schnerr and Sauer and Zwart were employed. The main innovation in this work is the addition of the Zwart mass transfer model in the OpenFOAM package. Flow at three different cavitation numbers, i.e., σ=0.2, 0.1, and 0.05 is considered. Our numerical results are validated with the experimental data and analytical relations for the cavity length, diameter and drag coefficient and suitable accuracy was observed. it is observed that the most accurate solutions could be obtained if we employ LES turbulence modeling with the Kunz mass transfer model.
Keywords
, Disk cavitator, LES turbulence model, mass transfer model, VOF, Zwart Model.
@inproceedings{paperid:1040691,
author = {Rahimi, Amin and Pendar, Mohammad Reza and Roohi, Ehsan},
title = {Simulation of 3-D Cavitation behind a Disk Cavitator using Different Turbulence/Mass Transfer Models},
booktitle = {سیزدهمین کنفرانس انجمن هوافضای ایران},
year = {2014},
location = {تهران, IRAN},
keywords = {Disk cavitator- LES turbulence model- mass transfer model- VOF-Zwart Model.},
}
%0 Conference Proceedings
%T Simulation of 3-D Cavitation behind a Disk Cavitator using Different Turbulence/Mass Transfer Models
%A Rahimi, Amin
%A Pendar, Mohammad Reza
%A Roohi, Ehsan
%J سیزدهمین کنفرانس انجمن هوافضای ایران
%D 2014
