ASE 362K
Problem Set #3
Clemens / Spring 2010
Due: Friday, February 19
Problem 1.
Anderson Prob. 3.2
Problem 2.
A normal shock stands in air that is flowing at a Mach number of 1.8. The
upstream conditions are P
1
= 1atm and T
1
= 300K.
(a) What is the pressure, temperature and density downstream of the shock?
(b) Compute the entropy change (units of J/kg/K)
(c) Compute the rate of entropy production per unit area of the shock (units of W/K/m
2
)
(d) Repeat (b) for M
1
= 5
Problem 3.
The space shuttle Columbia disintegrated at an altitude of about 200,000 ft (60
km) at which time it was traveling at about 12,500 mph (5500 m/s). As the shuttle enters
the atmosphere it orients itself to provide as much lift as possible to slow it down (it is a
“lifting body”). There is a strong shock that is formed over the entire windward side of the
shuttle called the “bow shock” (like the “bow” of a boat).
You are to compute the
conditions behind the bow shock, which you can idealize as a normal shock.
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
This is the end of the preview.
Sign up
to
access the rest of the document.
 Spring '07
 DOLLING,D
 Thermodynamics, Entropy, Mach number, Clemens, Bow shock, normal shock stands

Click to edit the document details