Thanks - that's really useful. It's cleared up quite some confusion for me.
The reason for these questions - a friend has some contacts in Indonesia, trying to work out how much power they might get from a flow rate, for local village projects. They have measured the flow rate at 500 - 600...
Thank you for that - that gives me an answer that I wasn't aware of, and is very useful.
When talking about size, are we talking about the width of the circular channel as compared to the width of the straight channel? Or width and depth? I suppose another way is to say are we talking about...
My first post, so hope it's in the right place!
If water flowing at 2 m/s in an open channel (say 2m deep by 3m wide) flows into a circle (call the entry angle 30degrees), what happens to the speed of the water? The dimensions are just examples, it's the theory I'm interested in.
I know...