NASA Technical Reports Server (NTRS) 20160001817: Space Launch System Base Heating Test: Experimental Operations and Results

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by  NASA Technical Reports Server (NTRS)

National Aeronautics and Space Administration
5 . . . 4 . . . 3 . . . 2 . . . 1 . . .
SPACE LAUNCH SYSTEM
Date: 1/5/2016
Base Heating Test:
Experimental Operations and Results
Aaron Dufrene, Matthew MacLean and Michael Holden
CUBRC Inc. Aerosciences

Manish Mehta and Mark Seaford
NASA Marshall Space Flight Center Aerosciences Branch

www.nasa.gov/sls
2% SLS Base Heating Model
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SLS Vehicle
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ATA-002 SLS Model Propulsion Performance
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ATA-002 Similarity Parameter: Plip/Pin f
100,000 1000
10,000
100
f 1,000 f
n n
Pi Pi
/ /
Plip 100 Plip 10
5
  B

2 R
S-­‐ 10 S
R
1 Flight
Flight
ATA-­‐002
 Integrated
 Stack
1
ATA-­‐002
 Integrated
 Stack
ATA-­‐002
 Core
 Only
0.1
0
0 50 100 150 200
0 50 100 150 200 250
Altitude,
 kft
Altitude,
 kft
Core engine P /P vs. altitude Solid rocket motor P /P vs. altitude
lip inf lip inf
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ATA-002 Similarity Parameter: O/F Ratio
7.0
6.0
5.0
o 4.0
i
t
a
R

F 3.0
/
O
2.0
ATA-­‐002
 Integrated
 Stack
ATA-­‐002
 Core
 Only
1.0
0.0
1 10 100 1,000 10,000
RS-­‐25
 Plip/Pinf
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SLS Base Heating Model Instrumentation Layout
Heat
 Transfer
 (185)
Pressure
 (47)
Radiometers
 (7)
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LENS Velocity/Altitude Capabilities
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ATA-002 Test to Flight Condition Comparisons
6.0 1,200
Flight
5.4 ATA-­‐002
 Integrated
 Stack
1,000
4.8 ATA-­‐002
 Core
 Only
r
e e
b 4.2 r
m u 800
s
u 3.6 s
N e
ach
  3.0 c Pr 600
M 2.4 mi
a
Flight n 400
1.8 y
ATA-­‐002
 Integrated
 Stack D
1.2
ATA-­‐002
 Core
 Only 200
0.6
0.0 0
0 50 100 150 200 250 0.0 1.0 2.0 3.0 4.0 5.0 6.0
Altitude,
 kft Mach Number
Mach number vs. altitude Dynamic pressure vs. Mach number
3,500 1,200
Flight
e
ratur 3,000 AATTAA-­‐-­‐000022

 ICnotreeg
 rOantelyd
 Stack 1,000 FAlTigAh-­‐t002
 Integrated
 Stack
e
Total
 Temp 22,,050000 c
 Pressure 680000 ATA-­‐002
 Core
 Only
m
  1,500 mi
a a
e n
r y 400
st 1,000 D
e
e
r
F
500 200
0
0
0 50 100 150 200 250
0 50 100 150 200 250
Altitude,
 kft Altitude,
 kft
Total temperature vs. altitude Dynamic pressure vs. altitude
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Aft-Body Heat Transfer vs. Freestream Pressure Data
19 20
21 23
24 25
26 27
28 29
30 32

r 33 34
e
f 35 36
s
n
37 38
a
r 39 40
T

  41 42
t
a
43 44
e
H 45 46

y 47 48
d
o 49 50
B 52 53
-­‐
t 54 55
f
A
56 57
58 59
60 61
62 63
64 65
66 67
68 71
1 0.1 0.01 0.001 72 73
74 75
Freestream
 Pressure
 (psi)
76
www.nasa.gov/sls