Questions tagged [turbomachinery]
The turbomachinery tag has no usage guidance.
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Pressure recovery in turbomachinery
Diffusers in turbomachinery are used to transfer some of the kinetic energy of the fluid to pressure energy and to direct the fluid to the ducting/second stage/... I understand this and the mechanism ...
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Turbocharger boost control using two valves with a vac and boost reference for wide boost control range
Can someone explain how the above boost control setup would work. The valve on the left uses a vac source applied to the top of the diaphram which would effectively help hold the spring closed at high ...
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How do I calculate the force coming from the centrifugal compressor exhaust?
Let's say I have a centrifugal compressor as shown in the figure and I know the following parameters----1
Thrust
Inlet and outlet pressure
Power required to operate the compressor
Inlet and outlet ...
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Turbomachines numerical please help
A twin jet Pelton wheel has a mean runner diameter of 1.68
m & runs at 500rpm, each jet is of dia. 152 mm. The net
head is 510 m. Bucket turns the jet through 1650 & relative
velocity is ...
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What drives the mass flow rate in axial turbofan between the compressor and the turbine when compressor is fully choked?
I haven't found the answer in the forum or elsewhere, but maybe I have searched badly, in which case please forgive me in advance.
For a steady nominal operation of a turbofan, I have heard that the ...
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Centrifugal pump head-flow prediction with CFD
Given a volute pump casing, the impeller, and RPM how would one obtain a simulated head-flow graph? As for what I have seen in research papers most methods already assume input flowrate / pressure and ...
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How is the number of blades on a centrifugal compressor determined?
If I know the tip and hub diameter of a centrifugal compressor ,the inlet velocity and outlet velocity, how do I determine the number of blades on a centrifugal compressor?
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What does the author mean? Turbomachinery - Reaction
I am reading a book of Fundamental Energy Systems.
The author describes the rate of change in head for a turbomachine as:
$$ \frac{1}{2}[(V_1^2-V_2^2)+(U_1^2-U_2^2)+(V_{R2}^2-V_{R1}^2)] = H =U_1V_{u1} ...
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