Ultra-High Pressure Driver and Nozzle Survivability in the RDHWT/MARIAH II Hypersonic Wind Tunnel
- LLNL
An ultra-high pressure device provides a high enthalpy (> 2500 kJ/kg), low entropy (< 5 kJ/kg-K) air source for the RDHWT/MARIAH II Program Medium Scale Hypersonic Wind Tunnel. The design uses stagnation conditions of 2300 MPa (330,000 Psi) and 750 K (900 F) in a radial configuration of intensifiers around an axial manifold to deliver pure air at 100 kg/s mass flow rates for run times suitable for aerodynamic, combustion, and test and evaluation applications. Helium injection upstream of the nozzle throat reduces the throat wall recovery temperature to about 1200 K and reduces the oxygen concentration at the nozzle wall.
- Research Organization:
- Lawrence Livermore National Lab., Livermore, CA (US)
- Sponsoring Organization:
- USDOE Office of Defense Programs (DP) (US)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 791325
- Report Number(s):
- UCRL-JC-139269
- Country of Publication:
- United States
- Language:
- English
Performance models and predictions for the RDHWT/MARIAH II hypersonic wind tunnel
|
conference | August 2000 |
RDHWT/MARIAH II hypersonic wind tunnel program overview and requirements
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An ultra-high pressure, ultra-high Reynolds number blowdown wind tunnel - Design and preliminary experiments
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conference | February 2013 |
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