PPT Slide
Air flows through a converging duct as shown. The areas at sections 1 & 2
are 5 m3 and 1 m3, respectively. The inlet flow speed is 20 m/s and we know
the outlet speed at section 2 is 100 m/s by mass conservation. If the pressure
at section 2 is the atmospheric pressure at 1.01x105 N/m2, what is the pressure
at section 1. Neglect all viscous effects and given the density of the air