An exterior explosion shot for a commercial I did recently, from 4-10 sec in this clip.
TurbulenceFD, LightWave 3D, and After Effects were the main tools used to complete the shot. The cell phone at the end was done with Element 3D in AE.
Originally rendered in 5K, comped in 4K, and was an insane challenge to do on the given schedule. ONE DAY was available to get the shot done. Rendered over night and comped the day after, only to find just 50% of the scene was rendered. So a bit of cheating had to be done to make it work.