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Search: Posts Made By: Tobi
Forum: OpenFOAM Post-Processing November 10, 2022, 12:00
Replies: 89
Views: 26,921
Posted By Tobi
If you are simulating 100s , the max value can...

If you are simulating 100s , the max value can only be 100s. I think you are not simulation 100s but 100 iterations -> steadyState.

The outcome of the age field is the time it takes to refresh...
Forum: OpenFOAM Post-Processing January 7, 2022, 15:18
Replies: 89
Views: 26,921
Posted By Tobi
Just one hint. The comfort and age function...

Just one hint. The comfort and age function objects are also available in the ESI version v2112
Forum: OpenFOAM Post-Processing February 8, 2021, 08:55
Replies: 89
Views: 26,921
Posted By Tobi
One hint: the mean age of air is already...

One hint: the mean age of air is already implemented as object function in the Foundation version.

Off-Topic: Why do you set the diffusion to 1 and ignore the turbulent diffusivity? A diffusivity...
Forum: OpenFOAM Post-Processing February 23, 2017, 04:52
Replies: 89
Views: 26,921
Posted By Tobi
Dear Ahmad, first of all thank you for the...

Dear Ahmad,

first of all thank you for the feedback but the fruits should go more to Thomas Tian because he programmed it and asked me if I can extend it and or host it. Till now I just changed a...
Forum: OpenFOAM Post-Processing February 16, 2017, 06:45
Replies: 89
Views: 26,921
Posted By Tobi
For git you need to do the following: git...

For git you need to do the following:


git checkout <tab><tab>
HEAD OpenFOAM-4.x origin/OpenFOAM-2.3.x
master origin/HEAD ...
Forum: OpenFOAM Post-Processing February 16, 2017, 04:22
Replies: 89
Views: 26,921
Posted By Tobi
Dear Habib, it seems that you installed...

Dear Habib,

it seems that you installed OpenFOAM either you compiled it yourself, right? The message of the compiler is not related to the application you try to compile it is an essential...
Forum: OpenFOAM Post-Processing June 13, 2016, 19:09
Replies: 89
Views: 26,921
Posted By Tobi
It should work too :) The problem is a bit...

It should work too :)
The problem is a bit older. When I made the first solver there was no possibility to do it with functions. Hence, I never tried it.
Forum: OpenFOAM Post-Processing December 7, 2015, 08:59
Replies: 89
Views: 26,921
Posted By Tobi
Hi, you have to make a new solver which...

Hi,

you have to make a new solver which solves this equation.
Just modify the scalarTransportFoam.
Forum: OpenFOAM Post-Processing December 7, 2015, 08:36
Replies: 89
Views: 26,921
Posted By Tobi
Of course you can use this as a post-processing...

Of course you can use this as a post-processing too.
Just use the velocity field U of your steady-state simulation and calculate your fluxes. Then just solve the equation of AoA. Finished (:
Forum: OpenFOAM Post-Processing December 1, 2015, 14:31
Replies: 89
Views: 26,921
Posted By Tobi
Hi, if you implement an equation like ...

Hi,

if you implement an equation like

fvScalarMatrix ageEqn
(
fvm::ddt(rho, age)
+ fvm::div(phi, age)
- fvm::laplacian(turbulence->muEff(), age)
...
Forum: OpenFOAM Post-Processing December 1, 2015, 08:18
Replies: 89
Views: 26,921
Posted By Tobi
Hi, did you mean the PFAU11 last week in...

Hi,

did you mean the PFAU11 last week in Leoben? If yes, I was there. But not in Leeds or whatever it is (:

What is Tracer in the Plot? The additional variable with the suggested equation?...
Forum: OpenFOAM Post-Processing December 1, 2015, 04:29
Replies: 89
Views: 26,921
Posted By Tobi
Dear kingjewel1, i suggest you to use a...

Dear kingjewel1,

i suggest you to use a simple passive scalar equation that has a source term that grow with time by 1. Thats it. After that you are able to Calculate the time the air is staying...
Forum: OpenFOAM Post-Processing April 25, 2013, 14:41
Replies: 89
Views: 26,921
Posted By Tobi
I am a bit confused couse the tutorial added in...

I am a bit confused couse the tutorial added in my git repo is not the one i build for that. Its the CO/H2/N2 mesh :D

well maybe I have time to resolve that mesh but first I reset my computer for...
Forum: OpenFOAM Post-Processing April 25, 2013, 13:24
Replies: 89
Views: 26,921
Posted By Tobi
The value of your scalar depend on yuor BC...

The value of your scalar depend on yuor BC settings!
Forum: OpenFOAM Post-Processing April 25, 2013, 12:17
Replies: 89
Views: 26,921
Posted By Tobi
i dont know what you mean with gas. Is that your...

i dont know what you mean with gas. Is that your new scalar?

http://www.cfd-online.com/Forums/openfoam-programming-development/99645-libopensmoke-7.html#post407482
Forum: OpenFOAM Post-Processing April 25, 2013, 01:42
Replies: 89
Views: 26,921
Posted By Tobi
I wrote a PDF and posted it here ... but no time...

I wrote a PDF and posted it here ... but no time for searching at the moment.
Forum: OpenFOAM Post-Processing April 24, 2013, 15:26
Replies: 89
Views: 26,921
Posted By Tobi
git clone...

git clone https://github.com/shor-ty/scalarRhoSimpleFoam.git
Forum: OpenFOAM Post-Processing April 24, 2013, 15:22
Replies: 89
Views: 26,921
Posted By Tobi
Hi, i was at work till now. 1. on my...

Hi,

i was at work till now.

1. on my computer the github link is working!
2. you have to set ddt into that equation; in my case I used the SIMPLE algo (steady-state; ddt = 0)
3. let the...
Forum: OpenFOAM Post-Processing April 23, 2013, 17:40
Replies: 89
Views: 26,921
Posted By Tobi
Hi, have a look at my solver:...

Hi,
have a look at my solver: https://github.com/shor-ty/scalarRhoSimpleFoam

Then use the scalarEqn.H and the entry in the createFields.H for your own pimple solver!

If there are any problems...
Forum: OpenFOAM Post-Processing April 23, 2013, 14:36
Replies: 89
Views: 26,921
Posted By Tobi
Hi, you can use implement a conserved scalar...

Hi,

you can use implement a conserved scalar transport equation for that!
At the beginning your scalar is 1 at the inlet and the rest is zero.

While simulating your scalar is transported...
Forum: OpenFOAM Post-Processing July 20, 2012, 17:20
Replies: 89
Views: 26,921
Posted By Tobi
Hi, same solutions with simple and pimple. ...

Hi,

same solutions with simple and pimple.
Attachements
Forum: OpenFOAM Post-Processing July 20, 2012, 16:25
Replies: 89
Views: 26,921
Posted By Tobi
Hey Tibor, I changed some lines in your...

Hey Tibor,

I changed some lines in your solver and now it works again :)
Is there a reason why you set DT - its zero or not ?

Hmmm ... I ll try it with the simpleFoam again and compare it.
...
Forum: OpenFOAM Post-Processing July 19, 2012, 04:40
Replies: 89
Views: 26,921
Posted By Tobi
Hi again, is there a way to validate the...

Hi again,

is there a way to validate the solved age time? I am not sure about my results. Using combustion and in the flame zone I have age values to 5 (like 5s) and that should be something like...
Forum: OpenFOAM Post-Processing July 3, 2012, 05:36
Replies: 89
Views: 26,921
Posted By Tobi
Hi again, I made a mistake :) Now I...

Hi again,

I made a mistake :)
Now I changed the code for the ddt() and the source...


fvScalarMatrix ageEqn
(
fvm::ddt(rho, age)
+ fvm::div(phi, age)
Forum: OpenFOAM Post-Processing July 3, 2012, 05:22
Replies: 89
Views: 26,921
Posted By Tobi
Hi andrew, thanks for your replay! Well...

Hi andrew,

thanks for your replay!
Well is mu = dynamic viscosity, nu = kinematic viskosity, or?
There was a problem in my head with the litrature.

Okay.
Now its clear. But I have...
Showing results 1 to 25 of 28

 
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