What are the variables "conservative_"?
Hi,
I am using SU2 V2.0.7 1.When the result of turbulent flow over flat plate is opened in ParaView, I see that there are variables "conservative_1","conservative_2"...."conservative _5". What are these variables? 2.Where is velocity? This used to be there with SU2 V2.0.0 3.Which one is density? Sreekanth 
Hi Sreekanth,
The conservative variables for the governing flow equations (Euler, NS, RANS) are the mass, momentum, and energy, i.e. U = ( density, density*velocity, density*energy)^T. Therefore, the density is the first conservative variable, and in order to get the velocity, you should divide the momentum components by the density. In 2D, for example, the xvelocity would then be vel_x = Conservative_2/Conservative_1. Cheers, Tom 
Conservatives
Hi,
Based on the above explanation , I would have 4 conservatives for a 2D problem and 5 for 3D problem. I did a 2D problem in SU2 with Physical_problem = Navier stokes and KIND_TURB_MODEL= SA I get 5 conservative variables . If its a 3D problem, I get 6 conservatives. Which is the extra conservative variable calculated? 
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The extra conservative variable is eddyviscosity variable in SA turbulent model. Merry Xmas and happy new year. Good Luck 
Thanks
Merry X'mas and Happy new year 
Missing functionabilities?
Hi all,
I would like to continue this thread, if I may, with a question with regard to the conservation variables. Sreekanth mentioned that the velocity parameter has disappeared in version 3.0, while it was there in the second version. I noticed the same, which I found quite a shame. The transition also changed the output parameters of flow.vtk files. With v2.0 flow.vtk files, I was able to visualize the direction of flow or velocity with the usage of glyphs in Paraview. I haven't found a way to achieve the same with v3.0 flow.vtk files. Does anybody know how I can achieve this? Moreover, the v3.0 flow.vtk files also seem to miss the streamline functionability in Paraview. Do I have to convert the flow.vtk files to be able to use this functions? If yes, how can I do this? Thanks in advance! Niels 
Hi,
To get the velocity vector , you have to use the filter 'calculator' in paraview. For 3D, the new variable should be "conservative2"/"conservative1"*iHat+"conservative3"/"conservative1"*jHat + "conservative4"/"conservative1"*kHat. This will give velocity vector (u,v,w) . After that, you can apply streamlines I hope this is what you asked about. Sreekanth 
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Hi,
Also, all these variables are scaled. So to get the actual value of velocity, you must multiply it with the value of reference velocity. 
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