Hi …

There are certain questions in my mind regarding fluid and smoke.

1. In Smoke, How to emit density from an object with a pressure??
Are we supposed to use Source as well as wind or fan force
node to simulate pressure???

2. How to apply vorticles to certain data at certain events??
eg. I am emitting density from a large object and the density
is not moving.Now I apply a fan force to certain area and
density in that area starts moving.
I want to apply vortivles to only moving density and not all
over the surface.How to do that??
Or it can be put this way…
Can we seperate or group a density data from other density data
depending on its velocity, energy, or pressure attributes??

3. What is Gas Advect, Gas Calculate and all the Gas nodes for???
I went thru the Help. But,are they there just to form a large
solver system, or can we use them to create some flexible effects?
Can u tell me a situation , where they have to be used??

There many such questions.
Waiting for ur answerers.