SimScale CAE Forum

Solid body?


#1

Hi,
I am new to CFD simulations. I have done a flow simulation on nozzle with a solid body and also with a shell. I did not get the correct results with shell nozzle (the mesh was messed up)
should we use only solid bodies for CFD even if it is a hollow body?

https://www.simscale.com/projects/sickman/nozzle_shell/
https://www.simscale.com/projects/sickman/nozzle_2/


#2

Hi @sickman,

You need, for internal CFD simulation, just a volume of 'fluid’to simulate, not the enclosure of that volume.

In you current project "nozzle-shell’, only three faces are necessary (in red now). So you will not mesh a shell, but mesh a volume of fluid to simulate.

Cheers,

Retsam


#3

thanks for the reply @Retsam, Now I understood the difference