It is concluded that in the two-phase region, a Rayleigh flow exhibits a maximum enthalpy at a point where the flow velocity reaches the isenthalpic speed of sound. This third speed of sound a h is defined by the relation a h 2 = ( δ p/ δπ ) h ....
The aim of this note is to obtain a flow rate equation for subsonic Fanno flow, which has a form similar to the flow rate equation for isothermal flow. When pipe dimensions and the proper values of pressures and temperatures at two sections along a pipe, namely P-1, P-2, T-1 and T...
Originality/value This paper proposes a new scenario to explain the origin of buffet, based on the use of a Fanno and Rayleigh flow analogies. This approach is used to design a control solution based on a modification of the wall temperature, showing very promising results....