Cumulonimbus clouds: Are they generated by physical modeling CFD Navier-Stokes, Rayleigh-Benard thermal convection?

[__l_o_n_e_w_o_l_f__]

Cumulonimbus clouds: Are they generated by physical modeling CFD Navier-Stokes, Rayleigh-Benard convection?

Does this engine simulate air flow? thermal convection? vorticity?

Can it simulate vortex breakdown, o-rings?

 

Edited March 11, 2023 by __l_o_n_e_w_o_l_f__

[silent]

__l_o_n_e_w_o_l_f__

Cumulonimbus clouds are getting all the information from the baked 3D texture (that you can generate inside Houdini, for example).

So no actual air flow, thermal convection and vorticity are being used when you see the cloud on your screen. This kind of simulation would be too complex for realtime 3D, 'm afraid. The same is for vortex and o-rings.

Thanks!

[__l_o_n_e_w_o_l_f__]

On 3/13/2023 at 12:45 AM, silent said:

__l_o_n_e_w_o_l_f__

Cumulonimbus clouds are getting all the information from the baked 3D texture (that you can generate inside Houdini, for example).

So no actual air flow, thermal convection and vorticity are being used when you see the cloud on your screen. This kind of simulation would be too complex for realtime 3D, 'm afraid. The same is for vortex and o-rings.

Thanks!

Actually helical vortex breakdown could be simulated with a simple volumetric particle flow. One example is the flow solver on David Li's website.

https://david.li/flow/