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In axial flow fans and turbines, fluid enters and leaves as follows
The axial flow compressor is preferred in aircraft gas turbines because of
To obviate axial thrust, following gear drive is used
When an open coiled helical compression spring is subjected to an axial compressive load, the maximum shear stress induced in the wire is (where D = Mean diameter of the spring coil, d = Diameter of the spring wire, K = Wahl's stress factor and W = Axial compressive load on the spring)
A closely coiled helical spring is acted upon by an axial force. The maximum shear stress developed in the spring is $$\tau $$. The half of the length of the spring if cut off and the remaining spring is acted upon by the same axial force. The maximum shear stress in the spring in new condition will be
When the axis of load lies in the plane of rivet group, then the most heavily loaded rivet will be the one which (where, Fa is the load shared by each rivet due to axial load and Fm is the shearing load due to moment in any rivet.)
The cavitation in reaction turbines is avoided, to a great extent by
Specific speed for reaction turbines ranges from
Reaction turbines are used for
The degree of reaction of an axial flow turbine is the ratio of isentropic temperature drop in a blade row to the