torque calculation of impulse turbine -- CFD Online Discussion Forums

May 30, 2012, 01:34

torque calculation of impulse turbine

liping_he

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liping_he

Join Date: Feb 2011

Posts: 36

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Dear foamers

I created a case by combining the interDyMFoam (tutorials/multiphase/interDyMFoam/ras/damBreakWithObstacle) and pimpleDyMFoam (tutorials/incompressible/pimpleDyMFoam/propeller) to achieve the simulation of impulse turbine (multiphases flow and AMI). The screenshot of velocity field is shown in attachment containing three nozzles and a runner.
And now, I want to calculate the efficiency. A great issue comes out HOW can i obtain the torque (pressure and viscocity torque ) of runner. I have no idea about this issue. Any advice will be appreciated.

Attached Images

turbine.jpg (78.2 KB, 60 views)

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