I was wondering why on some projects I view there are more post processing filters for example a vorticity filter yet on my projects I cannot use filters such as these.
Hey cyrus_costa,
Could you please send some project links or screenshots for us to understand better what you exactly you are referring to. This article should help in writing a detailed forum post: Guide to Clear and Understandable Forum Posting
Thanks for you understanding! 
Best,
Satvik
In the image below you can see the popout window for filters in the post processor. I have been shared simulations with other people and when I view those simulations I can use more filters such as “Wall Sheer Stress” or “Vorticity” both of these are filters I would like to have in my post processor because I think they would be very useful.
If you take a look at this document you can see which simulation types include the vorticity and wall shear stress result controls. These properties need to be added as a field calculation result control before you run the simulation to be able to see them in the post processor.