A QMU approach for characterizing the operability limits of air-breathing hypersonic vehicles

作者：Iaccarino Gianluca^*; Pecnik Rene; Glimm James; Sharp David

来源：Reliability Engineering & System Safety, 2011, 96(9): 1150-1160.

DOI：10.1016/j.ress.2010.06.030

• QMU
• Hypersonics
• Scramjet
• Intervals

The operability limits of a supersonic combustion engine for an air-breathing hypersonic vehicle are characterized using numerical simulations and an uncertainty quantification methodology. The time-dependent compressible flow equations with heat release are solved in a simplified configuration. Verification, calibration and validation are carried out to assess the ability of the model to reproduce the flow/thermal interactions that occur when the engine unstarts due to thermal choking. quantification of margins and uncertainty (QMU) is used to determine the safe operation region for a range of fuel flow rates and combustor geometries.

• 出版日期2011-9