Can anyone help me pls make this plume?



I am trying to make a vacuum plume like shown in image 1. The Video tutorials didn't help at all because they only show how to make it in a atmosphere. I tried replicating the plume from [here](https://blender.stackexchange.com/questions/290145/how-to-create-vacuum-rocket-engine-plume?answertab=scoredesc#tab-top) but it didn't work out. Can anyone please help me? Thanks