Share
Consider an oblique shock wave with a wave angle equal to 35-degrees. Upstream of the wave, P1 = 2000 lb/ft2, T1 = 520-degrees R, and V1 = 3
Question
Consider an oblique shock wave with a wave angle equal to 35-degrees. Upstream of the wave, P1 = 2000 lb/ft2, T1 = 520-degrees R, and V1 = 3355 ft/s. Calculate P2, T2, V2, and the flow deflection angle.
in progress
0
Physics
3 years
2021-08-23T05:23:01+00:00
2021-08-23T05:23:01+00:00 1 Answers
126 views
0
Answers ( )
Answer:
P2 The pressure is 6570 lbf/ft²
T2 The temperature is 766 ⁰R
V2 The velocity is 2746.7 ft/s
flow deflection angle is 17.56⁰
Explanation:
Speed of air at initial condition:
γ is the ratio of specific heat,
R is the universal gas constant,
T is the initial temperature.
initial mach number
then
based on the values obtained, read off the following from table;
P₂/P₁ = 3.285
T₂/T₁ = 1.473
Mₙ₂ = 0.6355
Thus;
P₂ = 3.285P₁
= 3.285(2000)
= 6570 lbf/ft²
T₂ = 1.473T₁
= 1.473(520⁰R)
= 766 ⁰R
We determine the velocity and deflection angle, first we calculate the mach number.