how to simulate heavy smoke without fire?

[jsyang]

hi,i want to simulate dense smoke in phoenix fd 2.2.i found i can't load the preset file:bigsmoke.apr.but in earlier version,i can do it.how can i do it in phoenix fd 2.2?

[Ivaylo Katev]

there are two ways, use uniform density (see conservation) and negative smoke buoyancy, or use non uniform density and temperature below 300 , for example 100.
these approaches will produce different results, just select the one you like more.

[jsyang]

Thank you for the help.

[jsyang]

i see,thank you.