CFD-vortex

[argi2007]

Hello everyone,
i am currently interesting in doing a sipmle Cfd simulation of a car. I am using Fluent and i want to simulate vortices produced by the car. In CFD-Post there is a tool ''vortex core region'' but it has different methods like Q-crit, vorticity etc. which is the best to use? Futhermore it has a box called ''Level" but i havent figured out its purpose. I tried reading 'User's Guide" but i hadn't any luck. If you could help me with any of these or if you have any literature i would appreciated it.

Thanks in advance (sorry for my English)

[argi2007]

So these are some pics.

Streamlines from Inlet


Vortex core region


Streamlines from vortex core region

[astracrazy]

With that car you are using i wouldn't expect much more than what you have in your 2nd image.

[argi2007]

With that car you are using i wouldn't expect much more than what you have in your 2nd image.

This is just a tutorial. I want some general informations about how to visualise vortex in CFD

[astracrazy]

try sending chuckdanny a pm. he has been doing a lot of vortex work in the other thread, he might be able to help you

[shelly]

With that car you are using i wouldn't expect much more than what you have in your 2nd image.

This is just a tutorial. I want some general informations about how to visualise vortex in CFD

try total pressure isosurfaces or lambda2 isosurfaces (latter takes longer to compute). In on eof your images you already used lambda2, that should be ok