An evacuated with an inlet area of 0.75 in2 reservoir
is filled with natural gas to store it for a later use from a
constant-pressure line. Hint: you can assume the reservoir as a
tank:
If pure air( instead of natural gas ) will flow steadily with
the velocity of 150 m/s into the reservoir @ 35°C under 93 kPa . Cp
= R*7/2
a. Determine the mass flow rate of the air;
b. Temperature of the air leaving the diffuser.