The point is that Fluids are very complex. Nothing I wrote is incorrect nor is it absolute. They are things you can try. Be careful when people tell you "this is what you MUST do".

Another thought: You can add fields to the sim to do things like create newton fields, turbulence, vortex and a few other things. these are a little tricky to figure out but they work very well.

Here's a like to an explosion test I did that used a mild vortex field.

test explosion 500kb quicktime file