0
The blades of an axial flow turbine have the aerofoil shape...
Also,for the axial flow turbines... Vf1=Vf2
The water strikes the blade surface at the same time from the root to its tip and a stream of water will leave the water at the correspondin trailing edge.
Therefore,for inlet to outlet,the radius and blade velocity will be the same,BUT the blade velocity will be different at different sections of the blade due to variation in the radial distance,which implies that the velocity triangles for each section of the blade will be different.In order to achieve shockless flow,the inlet and outlet triangles of a blade must vary from root to its tip,and therefore,axial flow turbine blades are twisted...
Wiki User
∙ 10y ago
Wiki User
∙ 12y agoshroud effectively prevents flow leakage thus reducing losses in the turbine.
Add your answer:
Earn +20 pts
How does a Ljungstrom steam turbine work and look like?
Ljungstrom Turbine is a Radial Outflow Steam Turbine with two counter rotating discs. Blades are mounted in circles one bigger than the other. Blades of one rotor work as nozzles for the other rotor blades. This turbine design is very forgiving on wet steam. It is said that the turbine design had limitations on scaling up above 30 MW and hence could not compete with Axial Flow Turbines.
Static force analysis on over head fan?
Centrifugal force of the fan results in an increase in static force. The blades of the axial flow fans force air to move parallel to them.
What is tHe purpose of inlet guide vanes in gas turbine?
In axial flow compressors, the primary purpose of IGVs (fixed or variable) is to guide the airflow onto the first stage rotor blades at an appropriate or required angle of attack.
What is difference between radial flow turbine and axial flow turbine?
in a radial flow turbine the steam enters the turbine in the direction of its radius and leaves it in the direction of the axis of the shaft. in a axial flow turbine the steam enters the turbine in the direction of the axis of the shaft and leaves the turbine in the same direction.
What is the difference between plug and mixed flow reactor?
See the Wikipedia article linked below
Axial flow turbomachines?
These are machines dealing with fluids, like (Axial Compressors, pumps and Fans). the term "Axial" is given due to the direction of inward and outward flow. In axial turbo machines the direction of outward flow is the same as the direction of the inward flow since the blades of the machines doesn't change the direction of flow.
What is the difference of an axial flow and centrifugal compressor?
The centrifugal flow compressor has a single or two stage unit using an impeller. The axial flow compressor is a multi-stage unit using alternate rows of rotating (rotor) blades and stationary (stator) vanes.
How do wind turbines harness the suns energy?
It happens because the Sun heats the ground in the daytime and that heats the air above, which causes winds to flow and drive the blades of the wind turbines.
What has the author David Rosenbaum written?
David Rosenbaum has written: 'Sasha's trick' 'Computer program for generating input for analysis of impingement-cooled, axial-flow turbine blade' -- subject(s): Fluid dynamics, Transmission, Turbines, Heat, Data processing, Computer programs, Jets, Blades
How do turbines produce energy?
Turbines don't produce energy. They convert combustion from burning gas or water flow. A turbine is just a device with a lot of blades that convert water flow or gas flow to rotation. This rotation then turns an electrical generator, interfaces with a power take off unit, or provides jet thrust.
How does a Ljungstrom steam turbine work and look like?
Ljungstrom Turbine is a Radial Outflow Steam Turbine with two counter rotating discs. Blades are mounted in circles one bigger than the other. Blades of one rotor work as nozzles for the other rotor blades. This turbine design is very forgiving on wet steam. It is said that the turbine design had limitations on scaling up above 30 MW and hence could not compete with Axial Flow Turbines.
What has the author Rodney Loren Bown written?
Rodney Loren Bown has written: 'An investigation of the secondary flow phenomena in a cascade of high-deflection axial-flow impulse turbine blades' -- subject(s): Aeronautics
Static force analysis on over head fan?
Centrifugal force of the fan results in an increase in static force. The blades of the axial flow fans force air to move parallel to them.
What substance turns the turbines for the hydroelectric?
the turbines turn as a result of the flow of water
The frontal area of a centrifugal compressor as compared to axial flow compressor is larger or smaller?
the frontal area of a centrifugal compresor is more as compared to axial flow compressor for a given air flow. And for this reason axial compressors are being used in aircraft engines.
Which pump has high specific speed?
Axial flow pump has high specific seed. According to US unit Ns >10000 has Axial flow pump.
What is tHe purpose of inlet guide vanes in gas turbine?
In axial flow compressors, the primary purpose of IGVs (fixed or variable) is to guide the airflow onto the first stage rotor blades at an appropriate or required angle of attack.
