The aerodynamic design of the NASA Altitude Wind Tunnel is presented in viewgraph format. The main topics covered are: analysis of a plenum evacuation system; airline definition and pressure loss code development; contraction geometry and code analysis; and design of the two stage fan. Flow characteristics such as pressure ratio, mach number distribution, adiabatic efficiency, and losses are shown

Davis, Milt W.

English

NASA Technical Reports Server

p
R
_
C
E
T
_
!
N
G
P/ZG
E
FI!.A
N
K
NO
T
F
!
L
P
_
E
D
i_
_
.
fjl
±
N
92-704 t
¢.,f)
¢./)
¢..0
Q¢.,..,
O
f)
_J
z0,3ZQOZ_.l
Z0F--
0n¢-w-
0n223
¢,0
https://ntrs.nasa.gov/search.jsp?R=19920075367 2020-03-24T07:21:42+00:00Z
EQI,,-Q.gI-
.u>cO
r_am
"0@h-EIm,-j
e"
m0en>mC_
CL>q)
ig
L_0
¢-
_
0
o
=
_
o
1::
®
'®
E
_
a
.
en
E
_
"
0
.
'_
'-
q)
04.1(33f-
lui-nE,.,
.
.QL_en
mm4.o00L_
r_imn_
zr_
r,,.1
Z
C_O
r_
0
.<Z
0N
_
Zule,_
ZZ>..
u
'J
z
0_0
u
Q_
.
e"a
U
.IN
Z
Z
-
,4
0
,
_
I'_
0
0
"
,
'_
r,,'
0
.
_
•
Z0Z0
,g:M
/
•
•
•
•
•
,I
I
\
11_
3_Inss3_d
73
nl
_J
0lUll
w
,,r,
_
i....
ZZU
r
o
N
_
o
•
-
.
*
-
-
I
X
•
N
'V3i:IV
llNfl
_3cI
bl3M
O
cl
_IV
J
iv
\\\
•
\
\
I
\\
2:l--m0i,,I0:ILl
:3u_1,1,,
m0!-.r_eemu_I,!,1
2:ji,
E-,
N
-
_
"
|
00_Ju_I,-0
_
e
>
.
Z
N0
,<
!|0
N,i-I
,2c_v!(Mv÷r,,,.dvI|0_D
,<
I
(M|
q,
"S'JLv/Xv
'O
IJ.VU
V]UV
•
•
•
•
u
.
LU
o
¢M
0
•
0
II
e-
f_mm
I-
e-
I
!
0
0
0
0
0
0
0
0
0
0
0
0
c_
c_
c_
c_
"
.L:I
dz
'3QN/I.I.'IV
3_INSS31::ld
o
o
_Ju.I
;[;[I--U.Ia.
I
I
I
I
I
I
I
tN
O
0
ql'
0
¢0
¢d
O
0
x
:l"
t_
0
t_
¢_1
N
1-.
V,B
o
_
2,,=
,
0
q"
0
-r
I--,
U
(n
uJ
m
:_
u
.O
z
z_
_
oN
I--
cj
t._
ul
I-uJ
Uulu_0CJulu_wul
Iu
_
[IN
'I:F:I81NnN
H
:)VIN
L
I:I:INUO
:)
%\%
l
i
I
!
I
l
I
I,,.
I-
1"-
0
0
0
0
\
00Im
0_
m
01W(DIn
0r_N0
uJm
ZZu<0UuJ(4I-U)tu
0mk-<UJn-U)Ul.Ja:D.UJ.JU)uJZ0LUUJ
UU)U)UJn_0uUJUJr_ILluLL
!
'_d
_
;_
'O
IJ.VU
3YlISS::Hd
931
J.S:_.L
o
'sd
-
',1-
iJl,L,
TT
ii!
It
_
:I
iL
!Lii.
El
_F
LL
L_.=
_!i!1.
ir
_11
:i.
[:i
:_
[:r:
:[
[!_:
:2
;::,
•tl
d,
,
:!li
iL
.
.
.
.
!!i
,
_i!
iH
1;:;
ili!
it
:::1
;I
:'!I
!I
,i_:
i;
!i:i
ii
::!i
;I
.J,
!!
!:!!,,
iI
,:i,
::LI
:i
:i:]i,i
II
:i;
tt
:I:
:i
:_
!!
!_.ili
:i
:I1
f_

000N
b<
0._
'O
IIVI:!
31:lnSS31:ld
N
V::I
('X,l
o
_a
.
,r.O
L)
_j
z_0_;-.j×._
,,,,m
,
"
-L
\\
\
.I,_,_,a
_
,/_v_,
•
_
'
_/_/_,_
I
!
I
o
@
o
I
I0
,00
cc
o
I
:
i.
L.+. +-+.
t_+p
;li
]
]
r
??
+li
,, +'-
H
+_-[-
++
,,PI I
tP I
++I+
ii
F + till
I+
++.,
_J_j
ill
4t
1_, r_
_H
,t titl
z'- ff
/
IIII
1+11
III
14<w
_
ul/)
nJ
<\
Z
\
mI-
x
I/)
x
0Z20U
!ooo
-
-
ZZ
N
N
_
N
N
_Jm_JJ
ZZ_
ZZ
_
_O
O
0
•
<].4
<]o<]o
<1
_
•
0
•
4
0
<
4
•
<
0
el
o<
@
Q®@@@@
o
o
o
o
o
o
o
o
o
N
I/U/dH
"H
_IN
_O
d
JLINn
S_d
o
o
.
"
i8
_
0
m
u
_
1,1,1
n
:n
"
=
0
-1
_
.
<
-
-
o
_
m
0
O
_
2mh,
ul
_
_
o
m
U
_3
I
-
r
q
<QJ:3u
I
.
I
.
.
rV
.=,
:=
,,=,
a.
J
O
I-.
,.
16,000
14,000
12,000
10,000
8,000
6,000
4,000
2
3
3
3
2
4
LEGEND
SYM REMARKS
O E.T., Zp, MIN
• E.T., Zp, MAX
_ = 6%, Zp. MIN
A _ = 6%, Zp, MAX
'3
1
2
2
jNO MACHINES (TYP)
2 4
2
1 2
2
! i i ! I
0.4 0.6 0.8 1.0 1.2
TEST SECTION MACH NUMBER, M
FIGURE 4. AWT-PES TOTAL COMPRESSOR POWER FOR VARIOUS
TEST CONDITIONS, DRY AIR
r_
!
n
"
o
_
o
_
¢_
rr
m
_
co
a.,.,
:
c
_
,-
=
'_
w-
-
0.0
8)rn"0
.
.
_
>
"
=
-
,'_
o
0
0
!
fflNJ_J
Zu
_
0ulI-ulu_z0mI,-o
I-,
ffl0o14.1
:2LL
(C
uJZZ<NNILl<om1,1=144
w
Z
m
_
.<
<>
o
0"-
ulu
U
z<<u
.
zOWl,.,
ZO
=I-uleemw_
o
•
f_Zwaipc__CC_
u
_
ILl
m
w
0
u
--.
Zn-
Z-r.
I.Uz_"1-.
LLI
ZI-qpmLIJ
r_NLL
((
Z0II--IZII_LILl
ILl
I_JI
(L000f_ZiZI,LI
(JILlZI,..IILl(,wO
e
n
e
r
111
.
,
.I
000r_0ILlZi,..IILl
,:(ZIii0eri11,:(
rr111
.
.
.i
000e
_
g
L
f
((
"
l
"
l
•
I
,
l
"
!
,
"
_J,
/
!
_4
-
-%
,
,
.
_I'_
_/
_
"
_
-[J
1/
i
I
I
|
•
_
.
III
IIII
ii
r_I'!
_
)
L
l
]
IJ
,
I
°
I
°
I
"
I
,
/
t
p
/
s
_
y'l
_
"
(*¢t
-
I
•
i
-
i
.
I
"
l
'
"
I11! 
i
.ilil
I_:Ii
I1-1
7/II:
I
I
,
.
_
II
2J_
7-nji5_-h1'
_
r
,u
7_,t
i
.
,|
-\_
'7
I
i
I
I
,,s",
Ctno
0ogv0
T-!'
-
-
"
_
:
.
.
.
.
.,i._
r
_
i"._
.
.
.
.
.
.
_i
_
.
.
.
.
.
;
\
-
t
_
;
0
;
\
I
"%%
,•
%
..,
_
x
L---,--Jlb
_
:i.:!._-
-
_
'_
'':\
0°%
.
"
'.%
-o
..,..
v
i
!
oIJW
_
ozf_l
2:
m
u
i
i
;
!
n
_
0
J
-L
-
,_
.
.
.
.
.
.
.
.
.
.
.
.
ii
l
l
|
r
o
.
.
.
.
.
.
.
:
_
,
.%..
\.
\%
-
-
.
.0..0
.
.
.
.
.
.
o
..{
_
r"
I'
•
!
0
c_U_X¢v
U_
"7
_
'
?
o
,I
X
X
X
X
_
,:
_
,
_
.
i
I
I
00
-0
0
0
-
_
x
!0
"t4
I
i
I
T
I
"
_
i
t
I,.Q_
_
,1
ul
-
-0omOf.D
m
i
<
_
_
m
I--
::,
::'0
O
--
_l...(J
<
<
Qa:
@
I--Z
U
_
w
I-
=
<
.<
I=ffl
u
_
0\\
i_t.-
"
-
.
,
.
"
°
'
-
.
.
.
°
.
v
•
i
i
!
v
w
;
f'1
C
_!
X
w
!
!
!
X
X
X
X
X
F
-
-
_
.
i,.
n
f-
I
I
I
m
o
o
o
!
x
0_1I-w"Jl-
C_C_
0!-o
1-O0
0
0--.-
_2u.N
m
.1
mu
_
CCL
o
_
o
o
lo
_
-
o
o
Io
_
"
_
-
od
I,...;
'_
dc_
I_
O
.
_
.
:
_
+
'
I
,
,>
,
_
_
_
_
.
_
.
_
.
_
>
o
o
o
,,=
,
,
,
=
,
"
'
d,.=
I
•
,_
,,.:.m
.
I_
,IT,
,
,-
_
o
'm
,.IT
>
m
r,,
I_
i
<
_
m
>
_
,
_
o
.
_
>
®,...o
8
o_
o
_
,..I
.
.,,.I
.
I
f
I
I
0
0
0
0
_
t
°
5
,
,
68
C
D
'
e
NO
I
P
-
_
n
1.14
>r
_
O2_9
U)14,1
r
_
2::
F
-
0LU.JZ0F-U
<mF
-
0OQLU14=
.
J
O
.
U)toLL
u)14.1
mF
-
,
.4
m(J<EL.J<L)mr_>-F-
t
o
0u)01-144
m<_
=
0
_
.
.
_
_
_
=
Z'*Q/I'eQ
"NO
I.LVI:I
U3.L31NVIQ
J.N3"IVAINO
3
C1
\
oa0LL00tramI--I,LI_JILlLLI
.
_l
r_LLI
t_IlliLL
000000
_O
aOQO
_
o
o
o
o
o
o
0
O
N
O
_O
0
_
o
o
o
o
o
_<
<
<
<
<
o
_
a
a
o
_
e
_
o
o
o
o
o
U
m
Z
0
u
.u
.
"
-
"
l,Ll_j
I-
O
0
_
"
m
o
_
o
.
m
U
>
-
_
-
_
_
-
_
,
.
.0
"
i
-
!
:
\
Z
_
I
I
L
L
e
e
_
.
_
I
V)
A
0
0
.
n
?
x
_
o
0
_
'_
U
I-0
_
-
0
II
,
,
.N
.
I-
/
/
Z0
•
I-I-0n_
0e_
tD
>Ln
0
IIv
o000N
O
y
"O
IJLVH
3HNSSgHd
N
V:I
0
|N
ooI
I
z
I
I
I
I
I
I
I
N
_
N
e.-
e.-
O
O
O
IIVU
3UN$$3Ud
N
V_
o
o
oo
o
oleIo
°
lr
I
o
>
o
.
.
o
_
_
u
_
O
LU
oo
ZLU
OOO
LIJ
'_
-r"
I...
o
uJ
oN
Iu_
o
o
t0
-
r
-
f--
Z0_
.
m
L
_
r
,
"
i----
0Zm
,
rbZ
m
_
,
.
U
ZU
-
L
m3
Z0L
'h
t
_
_
"
_
'
_Z
W
Z
_
_
O
_
_
_
Z
_
Z
_
Q
h
•El.E°
VU
-U
.
.
.3
U
_÷tJ
-
.
J
m
e
•
_
.
I
I
v
L
_
0-
.
.
J
C
O
ZL
m
_
t
_
L
UI
09.
Z
-
L
_
O9!
Z
L
_
Z
L
_
I
Ll
(/)
_
_
J
U
.
.
L
I3
O0
.
_3
Zr
?
"
U
_
h-
Z,
'
-
-
'
,
Z
I
-
-
C
_
I
I
I
I
0
D
ffln_
I
I
I
I
I
I
I
I
I
I
I
I
o
o
o
o
o
O
_1'
if)
N
_
-
O
a
ill
Ill
1F"
IP"
i'm
oo0
SJ.LVM
zl.O
l
ell
13A31
lt3M
O
d
O
NnO
S
r_
t
_
I
I
I
I
I
i
I
I
I
0
0
.
.
(SJ..i.YA_
_l,-O
I,
o
,I)
1_!A_11
U:iNtO
d
G
NI'IO
S
Cf
a
!
I
I
0
0
xt
Iv)
11,
IP"
I
I
I
I
I
I
I
I
0
0
0
0
,_
,0
0
.
(SJ.i.YM
z_
-O
LO
:)
"I_IA
_'i
II_lM
O
d
aN
nos
4
•
•
\
\
\\
I
.
t
w
o
ol
wdnwww_J-
I
D
I
o
.
L
_3
I
,
,3
L
7
/
ii
,,
i
•
•
a
¥
o
q
_/
¢
_
aqudnw
q
_
M
#
.
>/
/
'7
f
/
c_
•"
_
V


AWT Aerodynamic Design Status

Abstract

Similar works

Full text

Available Versions

NASA Technical Reports Server