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Engine
Research Building (ERB):
Turbine Facilities - SE-1
Supersonic/Subsonic Wind Tunnel Facility
SE-1
Facility Description
This facility contains 2 small wind tunnels capable of both subsonic
and supersonic operation. The test sections are 36 in.2 and 48 in.
long. Tunnel 1 uses atmospheric inlet while tunnel 2 uses 40-psig
air that is filtered, heated, and flow conditioned. Both tunnels
are equipped with a particle spray seeding system for laser anemometry.
Typical instrumentation development projects include an open-beam
laser fringe anemometry (LFA) system for unsteady supersonic flow
compressor studies, novel heat flux measurement tests, and fiber
optic LFA systems development. Tunnel 2 can be used as a supersonic
calibration duct for LFA particle dynamics studies. Recent instrumentation
development projects include curved diffuser experiments, and the
dynamic response of pressure sensitive paint.
SE-1
Special Features
An auxiliary air supply and exhaust piping provides both test
sections with suction, blowing, and crossflow capabilities. SE-1
has combustible gas, smoke, and IR flame detectors and a burn wire
to allow experimentation with volatile seeding solutions. A focus
schlieren system is available for flow-field visualization. A microcomputer
is used for research data acquisition and analysis. There are multiple
channels of scanivalve pressures and temperatures available.
SE-1
Facility Capabilities |
| Parameter |
Operating
value |
| |
Tunnel
1 |
Tunnel
2 |
| Inlet
air pressure |
Ambient |
40
psig |
| Inlet
air temperature |
Ambient |
400 oF |
| Inlet
airflow |
5
lb/s |
10
lb/s |
| Altitude
exhaust |
26
in. hg |
26
in. hg |
| Mach
no. (max) |
2.5 |
3.0 |
| Test
section size |
36
in.2 |
36
in.2 |
| SE-1 System Instrumentation |
| System |
Number and Type |
| ESP |
64 Ports of +/- 30 PSID
64 Ports of +/- 5 PSID
15 PSIA Ref |
| Escort |
80 Channels
40 Available to the Customer |
| Thermocouples |
48 Type K |
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