Hi,

I am trying to making an explosion similar to http://www.youtube.com/watch?v=mn2ArzRGX30 [youtube.com] (00:13 onwards). The explosion expands really quickly and at a point it just stop expanding and swirls around a bit. I figured out the expansion but I am having difficulty with trying to get the explosion to stop expanding.

I tried using a negative divergence, a drag force and a keying the Gas Released but none of it worked. Anyone have any better ideas on how to approach this?

Thanks.

If you just wanna make slower your explosion , use Time Scale option in the AutoDopNetwork , I think this is one of the simple ways 8)

Yes, but the idea is to stop the explosion from expanding and not just slow it down. I am currently running some tests with animating the Gas Released parameter but I still can't get it to stop expanding unless I set to value to 0. But that kills the explosion.

I need the fire the expand, stop expanding at a certain point and then swirl around at that point a bit like in the reference video.

High Temperature Output, Fast Burn Rate and Fast Temperature Dissapation.

Ok ,Let's try this ,Set keyframe for fuel and temperature of emitter,and set keyframe for “Time Scale” option in the PyroSolver to make slower explosion and finally use “Magnet force” to prevent expanding of the explosion :idea:

I made a very simple example of this process in the attached file ,Maybe it's can be help you :wink:

Great! I am already using keyframes on fuel, temperature and time scale. Using magnet force sounds like an interesting idea. I'll take a look. Thanks again!