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Does anyone have ideas for a source of ready made high rev back swept radial compressor wheels with cover plates? I know turbo-chargers use have small compressors, but they tend not to have cover plates. I'm after something more like a wheel from a vacuum cleaner fan. Preferably disk shaped...

Thanks for the reply, that would be the sort of thing i'm looking for, but for a compressible flow.

Dear All, Could anyone tell me if there are any metric tables or graphs describing pressure gains for air flowing in a pipe of increasing diameter (i.e. a conical diffuser) at various flow rates. I'm concerned with small diameters - 10mm to 100mm. And flow rates upto about 0.25kg/s Further to...

Does anyone know how the nozzles on spray painting equipment atomize the paint? I understand that the paint is pressurised and then passed through a spinning nozzle. But what pressure is used and what mechanism charges and then atomizes the paint?

That too sounds feasible sailoday28. Anyone know of any other similar mechanical scenarios?

You should really check CIBSE guidlines but generally rise to 450mm above ground in galvanised duct and pass through wall in one single piece and into interior.

Thanks for the response, that sounds like a really good starting point! What phrases and subjects should I be searching for on the net and in texts? thanks once again, Gerald.

Hello all, just registered yesterday, looking for advice on a problem. Im wondering if it is possible to use the centripetal force acting on a fluid inside a spinning shaft to vaporise the fluid. Would it be possible, for instance, to add enough kinetic energy to a flow of fluid inside a shaft...