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gonzo
11-11-2009, 07:12 AM
The minimal version would be a Kort nozzle and the other extreme is a thruster in a long tube. How many variations of this setup are there?
Submarine Tom
11-11-2009, 02:19 PM
147.

I have no idea how many variations there are but don't forget all the jet

drives out there!

Tom
gonzo
11-11-2009, 02:20 PM
I was thinking of a prop not an impeller.
Submarine Tom
11-11-2009, 02:24 PM
So, KURTZ, RICE, the standard outboard prop protectors, bow thrusters...

Why do you ask, gonzo?

Tom
gonzo
11-11-2009, 02:29 PM
Just curious about weird variations
Submarine Tom
11-11-2009, 02:34 PM
Curiousity's good.

Do jet turbines count?

They're in a tube.

I guess not, they're not props...
baeckmo
11-11-2009, 03:10 PM
Tom, do you really mean turbines? Per definition a turbine is a device extracting mechanical energy (mostly shaft power) from a fluid flow, while a pump (equals propeller and impeller) is transferring mechanical energy to a fluid. Gonzo started with a quest on the later kind of machinery. Sorry to rain on your parade, but as a turbomachinery research engineer, this distinction is a soft spot to me.....
gonzo
11-11-2009, 04:15 PM
I think I need to set some rules. No peeing in this thread
baeckmo
11-11-2009, 04:43 PM
Ok Gonzo, changed fluid.........
Submarine Tom
11-11-2009, 05:29 PM
baeckmo,

I really did mean turbine as gonzo didn't stipulate the fluid be water.

I should have clarified I was thinking of an aircraft style jet.

But it's still not a prop, so no matter, but thanks for asking.

Tom

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