What is the name of this "twisted" solid?

Question

One of my students asked me about the name of this solid:

It's kind of twisted triangular prism with convex edges, the base is almost a Reuleaux Triangle with rounded corners. Any ideas?

Answer 1

Is your prism-like figure like this? [click on figure]

Answer 2

I have done a great number of these types of things (two animations below) but have never known them to have a particular name. In my 3D programs it's called as swirl.