How to get the resulting velocity?

Fool · December 10, 2018, 16:44

Hello together,

after my first simulation with openFoam I wonder how to read the results of the velocity in a useful way. I've already searched a while for the solution but couldn't find a answer I understood.
I mean after the simulation openFoam writes the results for every time step to data 'U'. There I get the velocity in x,y and z direction for every cube of my mesh, right? But how do I get the resulting velocity of these 3 directions? Is there a command or a software that one can use to get that output or do I have to calculate it with paraview and if yes, how?

Thanks
Dave

yambanshee · December 12, 2018, 08:45

you can make use of paraview. It can display velocities as a magnitude. You can also choose to make use of the glyphs filter in paraview to make use of arrows that represent the velocity vector

Fool · December 12, 2018, 09:03

okay, thanks. But I want to get the results as a text file, so that I can compare the velocities. Isn't that possible?

December 10, 2018, 16:44	How to get the resulting velocity?	#1
Fool New Member David Join Date: Oct 2018 Posts: 27 Rep Power: 8	Hello together, after my first simulation with openFoam I wonder how to read the results of the velocity in a useful way. I've already searched a while for the solution but couldn't find a answer I understood. I mean after the simulation openFoam writes the results for every time step to data 'U'. There I get the velocity in x,y and z direction for every cube of my mesh, right? But how do I get the resulting velocity of these 3 directions? Is there a command or a software that one can use to get that output or do I have to calculate it with paraview and if yes, how? Thanks Dave

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December 12, 2018, 08:45		#2
yambanshee Senior Member Zander Meiring Join Date: Jul 2018 Posts: 125 Rep Power: 8	you can make use of paraview. It can display velocities as a magnitude. You can also choose to make use of the glyphs filter in paraview to make use of arrows that represent the velocity vector

December 12, 2018, 09:03		#3
Fool New Member David Join Date: Oct 2018 Posts: 27 Rep Power: 8	okay, thanks. But I want to get the results as a text file, so that I can compare the velocities. Isn't that possible?