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Search: Posts Made By: vineet_bhola
Forum: OpenFOAM Pre-Processing February 5, 2016, 11:42
Replies: 0
Views: 713
Posted By vineet_bhola
Which parameters to keep same for a simplified model

Hi Guys,
I am investigating a flow geometry including heat transfer using a simplified geometry. I do that to make the calculation faster as well as it is easier to pint out the issues in a simple...
Forum: OpenFOAM Pre-Processing January 27, 2016, 10:06
Replies: 0
Views: 834
Posted By vineet_bhola
Thermophysical model for air (Compressible around 1000°C, 3 bar, 300m/s)

Hi Guys
I want to define thermophysical properties for air in chtMultiRegionSimpleFoam and want to incorporate Temperature and pressure dependencies for thermal capacity and viscosity. Operating...
Forum: ParaView November 20, 2015, 06:31
Replies: 4
Views: 3,164
Posted By vineet_bhola
awesome...that sounds perfect...thanks once again.

awesome...that sounds perfect...thanks once again.
Forum: ParaView November 20, 2015, 06:16
Replies: 4
Views: 3,164
Posted By vineet_bhola
Thanks a lot Tom, It works as I wanted for...

Thanks a lot Tom,
It works as I wanted for area-weighted average. Although I don't see 'Area' field before integration in Spreadsheet view, I can see it only after I integrate the variables.
I...
Forum: ParaView November 19, 2015, 10:12
Replies: 4
Views: 3,164
Posted By vineet_bhola
How to save area-weighted OR mass-weighted Parameters from paraview

Hi Guys,
I want to find out average values of Temperature, velocity etc of fluid crossing through inlet/outlet patches (or even any patch for that matter). But as I have used addLayers through...
Forum: OpenFOAM Programming & Development November 17, 2015, 05:54
Replies: 5
Views: 1,455
Posted By vineet_bhola
I don't have much experience into programming...

I don't have much experience into programming part of the solver but seems like this might help.
...
Forum: OpenFOAM Meshing & Mesh Conversion November 6, 2015, 10:48
Replies: 0
Views: 808
Posted By vineet_bhola
Problem in layer addition at complex/bend shapes

Hi guys,
I am trying to add boundary layers for my mesh. It works fine for smoother or simpler places bu where the surface is a bit complex OR has been snapped into Polyhedral cells, the layers are...
Forum: OpenFOAM Community Contributions October 27, 2015, 07:06
Replies: 171
Views: 181,417
Posted By vineet_bhola
Let me explain my Situation a Little better. Here...

Let me explain my Situation a Little better. Here is my log file. What I want is it first searches only for abgas Region and get me all Residuals for abgas. But what I am getting is Ux for both abgas...
Forum: OpenFOAM Pre-Processing October 26, 2015, 09:58
Replies: 44
Views: 60,104
Posted By vineet_bhola
If you know approximate values of average...

If you know approximate values of average velocity OR some Initial guess/rough calculations, you can use the formulae below for k and Epsilon.
...
Forum: OpenFOAM Running, Solving & CFD October 26, 2015, 06:54
Replies: 16
Views: 1,529
Posted By vineet_bhola
But I have given k and Epsilon non-Zero values...

But I have given k and Epsilon non-Zero values for all the patches.I have attached the Initial and boundary conditions' file.
Infact the same conditions worked fine for incompressible flow. That is...
Forum: OpenFOAM Community Contributions October 26, 2015, 06:38
Replies: 171
Views: 181,417
Posted By vineet_bhola
I know it is a very old post. But does someone...

I know it is a very old post. But does someone know how to edit the Residual script for multi-Region Domain?
I am using two fluids and a solid ...and all the residuals are getting mixed up.
Thanks...
Forum: OpenFOAM Running, Solving & CFD October 26, 2015, 06:04
Replies: 16
Views: 1,529
Posted By vineet_bhola
I have given some Initial non Zero values to k...

I have given some Initial non Zero values to k and Epsilon. But when I define my gaseous Region as compressible or to be precise,...
Forum: OpenFOAM Pre-Processing October 19, 2015, 12:07
Replies: 25
Views: 33,160
Posted By vineet_bhola
ohh sorry, I didn't realise you were talking...

ohh sorry, I didn't realise you were talking about transient variation of mass flow rate.
I have always worked with steady state flows so I don't know about how to incorporate time factor.
and I...
Forum: OpenFOAM Pre-Processing October 19, 2015, 11:40
Replies: 25
Views: 33,160
Posted By vineet_bhola
If you can use a constant volume flow rate and...

If you can use a constant volume flow rate and varying mass flow rate, you would be either getting a nobel prize or defying the laws of physics. Chances of second Option are more though :P
Just...
Forum: OpenFOAM Pre-Processing October 19, 2015, 10:55
Replies: 25
Views: 33,160
Posted By vineet_bhola
I guess it is the opposite way. If you are using...

I guess it is the opposite way. If you are using a compressible fluid then phi values should be in kg/s and if you are using a incompressible one, it should be in m3/s. Though I think it depends on...
Forum: OpenFOAM Meshing & Mesh Conversion October 16, 2015, 04:34
Replies: 5
Views: 1,056
Posted By vineet_bhola
you can check out the whole case Folder in the...

you can check out the whole case Folder in the attachment file. Blockmeshdict and Snappyhexmeshdict are in there
Forum: OpenFOAM Pre-Processing October 7, 2015, 09:50
Replies: 25
Views: 33,160
Posted By vineet_bhola
Hello James, "phi" Files are created at run...

Hello James,
"phi" Files are created at run time. So let your solver run for some iterations and then you can check in the timestep folders. There you will either see m3/s or kg/s. You can change...
Forum: OpenFOAM Pre-Processing September 30, 2015, 10:36
Replies: 0
Views: 827
Posted By vineet_bhola
What does "mixed" patch type(pressure inlet) mean in rhoSimplecFoam?

I am testing a compressible pipe flow and used reference values from rhoSimplecFoam tutorial and for pressure inlet patch I came across "mixed" patch type. I did not understand that so i used...
Forum: OpenFOAM Meshing & Mesh Conversion September 30, 2015, 06:22
Replies: 5
Views: 1,056
Posted By vineet_bhola
Has anyone faced a similar problem before? It...

Has anyone faced a similar problem before? It seems like I am talking to myself. I just speculate that it was the reason...I have not found any solution (Infact not even sure concave faces/cells are...
Forum: OpenFOAM Meshing & Mesh Conversion September 30, 2015, 04:27
Replies: 5
Views: 1,056
Posted By vineet_bhola
I have found a probable reson for this problem. I...

I have found a probable reson for this problem. I am attaching the ouput of
checkMesh -region solid -latestTime -allGeometry
The problem is with concave cells. When I had tried using only...
Forum: OpenFOAM Meshing & Mesh Conversion September 25, 2015, 10:39
Replies: 2
Views: 1,443
Posted By vineet_bhola
Here is the complete log file for reference....

Here is the complete log file for reference. there was a Limit of only 5 files per post
Forum: OpenFOAM Meshing & Mesh Conversion September 25, 2015, 10:34
Replies: 2
Views: 1,443
Posted By vineet_bhola
Problems using cellzones in snappy

Hi Guys,
I am using snappyhexmesh to create a cellzone alongwith the mesh. I would Need that later for multi-Region meshing and as of now I am testing it only with one volume.
The Problem is when I...
Forum: OpenFOAM September 21, 2015, 04:56
Replies: 10
Views: 21,357
Posted By vineet_bhola
yes, that is exactly what I see. And I understand...

yes, that is exactly what I see. And I understand that main thread is "OpenFOAM Meshing & Mesh Conversion" and what you created recently are sub-Forums. I thought it would be confusing if some people...
Forum: OpenFOAM Running, Solving & CFD September 17, 2015, 10:33
Replies: 16
Views: 1,529
Posted By vineet_bhola
Thanks alot David. That was really helpful

Thanks alot David. That was really helpful
Forum: OpenFOAM Running, Solving & CFD September 17, 2015, 07:03
Replies: 16
Views: 1,529
Posted By vineet_bhola
Thanks for your reply. Can you please give me a...

Thanks for your reply. Can you please give me a rule of thumb , how to select values of k and Epsilon? Meanwhile I try it with Laminar flow for checking the solver. Btw, what happens if the velocity...
Showing results 1 to 25 of 48

 
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