Hi Maria,
you can download the results from the workbench (see picture below).
You can then use the offline Paraview version to do more sophisticated post-processing.
Best,
Jousef
Hi Maria,
you can download the results from the workbench (see picture below).
You can then use the offline Paraview version to do more sophisticated post-processing.
Best,
Jousef
I had downloaded the results as you have suggested but it looks like it only gives me how it defined the model and how the program have done the calculations (the code).
I was looking for something that would give me the final results of the simulations compiled.
Also, can you explain to me what is Paraview version that you are talking about?
Thank You,
Maria Chek
Hi Maria!
I have quickly put together a step-by-step instruction here: Offline Post-Processing with Paraview. Let me know if you need something else.
Best,
Jousef
Thank you for you help!
I do have couple of questions for you.
I read in one of the forums online that " Folder ‘numbered’ : this is the written results at the numbered time."
I have a folder that is called 1000 in the zip file that I downloaded from my simulation. I opened the 1000 folder and it gives me a long list of numbers for several factors such as velocity, pressure and alpha. I have attached the screenshot of what I see when I look at the pressure file.
Thank you for your time,
Maria Chek
I just realized that I might have not been clear about what I was looking for from the model results.
I am hoping to see the data set for velocity and pressure profiles from program, not only the graphic.
You did tell me that I can download the results but I am having some trouble interpreting the results. I am slightly confused about the locations of all those values. (if you can take a look at the post above I took a screenshot of what I see when i open the downloaded folder)
Thank you for your help,
Maria Chek
Hi Maria,
You can see the velocity and pressure profile inside of the program Paraview! You simply have to change the quantities on top (velocity, pressure, etc.) and use some additional tools to probe or plot over line - there are different ones that you can use.
And the points shown above are the ones for the last time step (you did a steady-state analysis anyway).
For more information about OpenFOAM’s folder structure: 2.1 File structure of OpenFOAM cases
Cheers,
Jousef
@jousefm,
Thank you for response.
I was wondering would it be possible to see the simscale data in the form of the data table that can be viewed in excel or a data set? Instead of just pressure profile?
Thank you,
Maria Chek
Hi Maria and sorry for the late response.
Indeed you can export result control fields using SimScale if that’s what you are looking for, see below.
Let me know if that helped!
Jousef
@jousefm,
Thank you for your response!
And yes this is what I was looking for exactly.
Now, I am trying to figure out how the probe points work. I am attempting to do it in a simple model of 20 inch pipe first before I attempt to replicate it in the actual model. I am slightly confused about how does probing points work because the results i am getting does not make any sense.
This is the simulation of the pipe that I am working on right now:
I chose to put the probe point in the middle of the pipe. And for the pressure results, I am getting 335.98 psi, which is impossible. It should be somewhere around 10-15 psi.
Could you possibly tell me where am I going wrong?
Thank You,
Maria
Hi Maria,
looks good to me. You maybe looked at the velocity which is way higher in the diagram.
Cheers!
Jousef
@jousefm,
Thank you so much for helping me with that!
I have one more question for you. In the model that I am studying, I am finding that in certain areas the velocity and pressure distribution is different. Would it be possible for me to see the average pressure and velocity in those sections in Paraview or Simscale? Also can i see it in the table form ?
Thank You for all your help,
Maria Chek
Hi Maria!
You can create a Result Control item and choose Area Average for that and simply choose the surfaces - in your case inlet/outlet. For the table issue I will create a small step-by-step and let you know.
Best,
Jousef
\underline{\textbf{Step-by-Step for Average Value through a surface}}
Choose Result Control Item
Pick the surface you want to have the average from
After the run you can see the average values under Solution Fields
Download the files (as shown below)
Paraview tutorial might follow soon Will post the link here if it is finished.
Best,
Jousef
@jousefm
Thank you so much for all your help! I really do appreciate it.
I am having some trouble viewing the results at the moment from the several simulations I have run.
This is the link to the one I am working on right now:
When I look at the convective heat transfer 5 and the simulation run 2. All i see is a blank page and nothing loads for me. I am wondering is there something wrong with my simulations or does it have to do something with the website?
Any help you can provide to me would be greatly appreciated!
Thanks,
Maria Chek
Hi Maria and sorry for the late feedback!
Will check. Let me know if it worked for you in the meantime.
Edit: Everything works fine from my side. Can you check your internet connection please?
Cheers,
Jousef
Thank you so much for all your help.
I have couple of questions for you about SimScale model.
There are several different materials that can be used for pipes like steel or HDPE. Is there a way to specify in the model what kind of material of pipe it is?
Additionally, the friction in the pipes. Is there a way to control the friction in the pipe? Like make the pipe rough or smooth if needed?
Thank You so much for all your help!
Maria Chek
Hi Maria,
Why would you want to change the material? For CHT it makes sense also regarding thermal conductivity and other parameters you want to specifiy. Other than that the material is irrelevant for a simple pipe flow simulation - at least I cannot think of a scenario where the material has an influence on a simple incompressible pipe flow simulation. @Get_Barried, feel free to jump in if you have an idea.
Regarding the roughness there should be an option if you set a custom boundary condition and change the turbulent kinetic energy (TKE) to wall function and set the sub option to rough at least to my knowledge. I’m at my smartphone in the tram at the moment and would have to check as soon as I am home but you can test it in the meantime
Best,
Jousef
@jousefm
Thank you for your quick response.
The reason why I am interested in different materials for pipes is because I am not sure which material the model in SimScale assumes it to be. Is there a default material that is assumed for the pipework?
I am also interested in the friction loss in the pipe because in the simulation results that I have compiled, no matter the configuration of the pipe work, it seems that the friction loss is very small for each case. I guess what am curious about is the default value for it and is there a factor by which i can increase it?
Thank you,
Maria Chek
I have one more question for you. I am attempting to specify the custom boundary conditions as you have suggested to me before. However I am running into couple of problems. I am not exactly sure what kind of setting I am supposed to specify for specific dissipation rate and turb. thermal diffusion. I don’t particularly have any knowledge of the specific values for those in my case and it doesn’t allow me to leave it as 2D empty.
while the periodic, wedge, and symmetry setting all deal with symmetry and I don’t believe they would work in my case. And when I did try them they failed as well.
Any guidance you can provide to me would be greatly appreciated,
Thank you,
Maria Chek
Hi Maria!
So for fluid flow simulations (simple incompressible flow) there is no need to define material as mentioned before as this has no influence on the fluid behavior except if let’s say you do CHT or Fluid-Structure Interaction where the material properties would be relevant.
Materials used for your type can only be Newtonian, Non-Newtonian or a Viscosity Model.
Regarding your question about the parameters. You simply choose a custom BC and make the adaption as seen below.
For the turbulent BC this article will help you out: Defining Turbulent Boundary Conditions
The parameter for the roughness I have shown in the picture above will be adapted for reference data that you have. That’s actually an iterative process where you check first if the roughness constant of 0.5 works, if not then adapt and re-run. Hope it makes sense so far.
All the best!
Jousef