General information and reminders
Compressible fluid turbines - Design and operation

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General information and reminders


Compressible fluid turbines - Design and operation

Author : Michel VINCENT DE PAUL

Publication date: January 10, 1998 | Lire en français

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1. General information and reminders

1.1 Reminder of equations

We recall the equations of the supposed stationary flow, in their simplest form, i.e. one-dimensional, to specify the notations and assumptions.

a) Conservation of mass flow Q m of a fluid of density ρ passing through a surface S normal to the flow :

Q m = ρVS ( 1 )

The flow velocity V can be expressed as a function of the Mach number M, and the flow rate then takes the form : Qm=g(M)pTS

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