TURBOPROPULSION
&
GAS DYNAMIC LABORATORIES
Naval Postgraduate School Research Newsletter
RESEARCH NEWSLETTER OCT. '98
List of Archival Publications
ARCHIVAL PUBLICATIONS
FACILITIES:-
Three large, reinforced concrete buildings of special design and one
metal building (machine shop), located on the edge of the Monterey Peninsula
Airport within the Naval Postgraduate School Golf Course enclosure.
Low Speed Turbopropulsion Laboratory (Bldg. 213)
For low speed experiments; contains a 700 HP blower in the basement,
external inlet and exhaust towers, electrically actuated windows on all sides,
pressure and suction floor panels, and is equipped with a 6000 lb. capacity
overhead travelling hoist. A unique facility, the laboratory houses three
major rigs and data systems as follows:
RECTILINEAR CASCADE WIND TUNNEL
3-STAGE AXIAL COMPRESSOR
- Outer Diameter 36"
- Hub - Tip Ratio 0.6
- Power 150 HP
- Speed 1.2, 1.6 & 2.4 KRPM
- Fully Instrumented
CENTRIFUGAL DIFFUSER TEST DEVICE
- Test Section 50" - 96" Diam. by 2"
- Mach No. 0 - 0.3
- Flow Angle 58 deg. to 72 deg.
- Survey Probes and LDV Access
DATA ACQUISITION SYSTEMS
- HP3052A Data Acquisition System
- Pneumatic Scanivalves (5x48)
- Temp. RPM, Torque, Kullites
- HP9000 Series 300 Computer
- TSI Two-Component LDV System, Standard Optics, XYZ Traverse Table
- TSI Four Channel Hot Wire System
High Speed Turbopropulsion Laboratory (Bldg. 215)
Reinforced concrete building containing a 1200 HP compressed-air power
supply (11 lbs/sec at 3 atmospheres, continuous), two explosion-proof test
cells for high speed compressor and turbine testing, calibration and model
test bay, control room, computer room, conference room and offices. The two
major rigs and data systems are as follows:
TURBINE TEST RIG
COMPRESSOR TEST RIG
CALIBRATION AND MODEL TEST BAY
HOT SPIN-PIT TEST FACILITY
Maximum rotational speeds: 30,000 rpm 20,000 rpm
Maximum rotor weights: 250 lbs 1500 lbs
Maximum rotor size: 50 in. diameter, 24 in. length
Rotor heating capability: 40 HP or
Rotor temperature of 2000 deg. F.
Spin-Pit Cover showing the drive turbine and strain gage slip ring unit
A couple of rotors tested thus far
Two-stage Rocket-Turbine Rotor
to approx. 10,000 rpm
Transonic Fan Rotor
to approx. 27,000 rpmwith airjet and magnet (Hood Technology) blade excitationinstrumented with strain gages and capacitive blade deflection non-contact probes (NSMS)
DATA ACQUISITION SYSTEMS
- HP System with 120 channel scanner
- Pneumatic Scanivalves (5x48)
- DVM, SVM, Pacer, Counter, 16 Channel 100 KHz A/D DMA
- HP9000 Series 300 Computer
- TSI Three-Component LDV, Fibre Optics, XYZ Traverse
- HP/Agilent Infinium Four Channel Signal Analyser with Hard Disk (2)
GAS DYNAMICS LABORATORY
SHORT DURATION BLOW-DOWN FACILITIES
HIGH SPEED UAV AND MISSILE PROPULSION
Instrumented for Thrust, air and fuel mass flowrate measurements
For future Mach number and turboramjet tests
High Speed UAV and Missile Propulsion
MPEG of the Shrouded Microjet running in the test stand
MPEG of the Shrouded Microjet running in the FreeJet