CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Running, Solving & CFD

Density problem using cavitatingFoam

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   September 27, 2016, 09:51
Default Density problem using cavitatingFoam
  #1
New Member
 
Juanjo Garcia
Join Date: Sep 2016
Posts: 3
Rep Power: 9
xuanxo21 is on a distinguished road
Hi to everyone,

it is my first post. I have been looking for a solution in this forum, but pitifully, I haven't found it.

My problem is:

I am using the cavitatingFoam solver to solve an injection case. This case is about a specific injector, which don't allow cavitation. I have set the boundary conditions for velocity and pressure as follow:

Pressure
Inlet:
totalPressure;

Outlet
waveTransmissive;

Velocity
Inlet:
pressureInletVelocity;

Outlet:
zeroGradient;

I am using a k-epsilon RAS model for turbulence.

I want the density to remain constant, applying the boundary conditions as fixedValue at the inlet and outlet in the value of 743.61 kg/m^3. But the problem is that at the outlet, the density value decreases to 600 kg/m^3 and I don't know why. Is it due to the boundary conditions?

Could someone help me?

Thank you
xuanxo21 is offline   Reply With Quote

Reply

Tags
cavitatingfoam, cavitation, injection


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 Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
[ICEM] Aircraft unstructured mesh problem on density trailing edge Huo ANSYS Meshing & Geometry 8 July 6, 2013 11:30
Negative Density problem in starcd Dinesh Siemens 4 January 26, 2009 12:53
estimation of density in cavitating problem rem Siemens 1 October 21, 2008 01:07
Negative density problem. compressible flow Karl Siemens 2 July 10, 2008 16:41
Problem on high density ratio in Level Set method Kai Yan Main CFD Forum 10 December 25, 2007 06:12


All times are GMT -4. The time now is 02:48.