blob: b3a1d4c60dbfb805be164620fb93002318e30334 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
|
//all the quantities are expressed in SI units
V2 = 100*1609/3600; //test section flow velocity converted from miles per hour to meters per second
p_atm = 101000; //atmospheric pressure
p2 = p_atm; //pressure of the test section which is vented to atmosphere
rho = 1.23; //air density at sea level
ratio = 10; //contraction ratio of the nozzle
//the pressure difference in the wind tunnel can be calculated as
delta_p = rho/2*(V2^2)*(1-(1/ratio^2));
//thus the reservoir pressure can be given as
p1 = p2 + delta_p;
p1_atm = p1/p_atm; //reservoir pressure expressed in units of atm
printf("\nRESULTS\n--------\nThe reservoir pressure is\n p1 = %1.2f atm",p1_atm)
|
