Ultra-high pressure driver and nozzle survivability in the RDHWT/MARIAH II hypersonic wind tunnel Conference Paper uri icon

abstract

  • 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 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.

author list (cited authors)

  • Costantino, M., Brown, G., Miles, R., Raman, K., & Felderman, J.
  • Costantino, M., Brown, G., Raman, K., Miles, R., & Felderman, J.

publication date

  • December 2000