A certain axial flow turbine has an output torque M which is proportional to the volume flow rate Q and also depends upon the density , rotor diameter D, and rotation rate How does the torque change due to a doubling of (a) D and (b)

Question: A certain axial-flow turbine has an output torque M which is proportional to the volume flow rate Q and also depends upon the density ,

A certain axial-flow turbine has an output torque M which is proportional to the volume flow rate Q and also depends upon the density ρ, rotor diameter D, and rotation rate Ω. How does the torque change due to a doubling of (a) D and (b) Ω?

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