Limiting discharge rates for Venturi meters. 

(a) Starting with Eq. 15.5-34 (for adiabatic flow), show that as the throat pressure in a Venturi meter is reduced, the mass rate of flow reaches a maximum when the ratio r = P₂/P₁ of throat pressure to entrance pressure is defined by the expression?

(b) Show that for S₁ >> S₀ the mass flow rate under these limiting conditions is?

(d) Obtain results analogous to Eqs. 15B.5-1 and 2 for isothermal flow

Transcribed Image Text:

Part (a) y - 1 plyt 1)/y (S,/S) y + 1 Part (b) yM RT, \y+ 1) (y+1)/(y-1) w = Cap,So, %3D