Can you shape the the end nozzle??

Hi everyone, I have just joined this site. Thank you for having me.

I am a specialist in liquid photography and am fascinated by Laminar flow. Just discovered this a few days ago and haven't stopped playing.

I am trying to make a water spiral, and today spent (8 hours...) trying to make a Laminar flow with a slit as oppose to a hole in the end. just not a clean flow, I think the end material needs to be very thin and super clean edged? I am wanting to spin the end of the nossel so that as the water comes out so it creates a spiral effect. Twisting. Does that make sense?

I love liquids, fascinating isn't it.

Appreciate any help. I have read through the topic titles and couldn't see anything along these lines, please excuse me if I had missed it.

All the very best

David