CFD Online Logo CFD Online URL
Home > Forums > Fluent Multiphase

2d axisymmetric simulation of supersonic jet on liquid surface using VOF model

Register Blogs Members List Search Today's Posts Mark Forums Read

LinkBack Thread Tools Display Modes
Old   June 20, 2014, 02:15
Default 2d axisymmetric simulation of supersonic jet on liquid surface using VOF model
New Member
Join Date: Jun 2014
Posts: 1
Rep Power: 0
DKanungo is on a distinguished road

I'm trying to simulate(2D-axisymmetric transient state) the injection of oxygen at supersonic speed from a top lance in a steelmaking converter of height 1.45m and width .575m using VOF model of ANSYS Fluent 15.0. I'm only considering the slag phase which is at 0.8m below the nozzle exit. The diameter of the nozzle exit is 0.01m and oxygen is released at a supersonic speed of 2.1 Mach no. and at a inlet pressure of 896320Pa on to the slag surface. The axis of symmetry for the simulation is X-axis.

I want to see the change in the slag-converter interface by the oxygen impingement, but when i simulate my model the jet doesnt reach the interface and no curvature is observed at the same.

Setup details: Multiphase flow-VOF Model (Explicit scheme) with 3 fluids(air, slag and oxygen) standard k-epsilon turbulence model with standard wall functions.

BCs: For velocity-inlet: v=714m/s and P=896320Pa
For pressure-outlet: P=100000Pa

Operating Condition: x=0, y=.01, P=101325Pa

Relaxation factors: P=0.1, Momentum-0.6, turbulent KE=0.4, turbulent dissipation rate=0.4

Standard initialization from all zones and I've also patched the zones corresponding to air and slag as shown in the attached geometry. I've used variable time stepping method with a min time step of 1e-05.

I've attached the image of my geometry and also the simulated result for velocity contours.

I' completely new to ANSYS, so please help me sort my problem out.
Attached Images
File Type: jpg 1.jpg (27.1 KB, 22 views)
File Type: jpg FFF-1.1.jpg (45.2 KB, 24 views)
DKanungo is offline   Reply With Quote


interfaces, jet impingement, supersonic nozzle, vof modeling

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Simulation of Axisymmetric Free Jet using LRR Reynolds Stress Model skyinventorbt OpenFOAM 0 August 14, 2013 06:18
VOF free surface vortex simulation mahdiii FLUENT 3 May 14, 2013 15:33
simulation of free surface of stirred tank using vof jamalf64 FLUENT 39 April 22, 2013 01:10
Moving mesh or VOF? Giovanni Main CFD Forum 16 September 24, 2001 08:25
Simulation of condensation/evaporation using VOF model in Fluent4.5 Yuwen Zhang Main CFD Forum 0 April 27, 1999 11:48

All times are GMT -4. The time now is 19:34.