Internal flow and nozzle characteristice were analysed as part of the program coordinated by the AGARD ad hoo study group. All available data were used in a comparison of the nozzle discharge and thrust coefficients and jet pipe wall stato pressures of similar nodal configurations. lb was found necessary to take into account the distortion of the total pressure profiles in the jet pipe. The mass flow averaged total pressure was used in the calculations. The distortion coefficient DCM proved to be a useful tool in the comparison of the mass flow averaged total pressure with the 1-D. semitropical total pressure, derived from mass flow, temperature and static pressure.
展开▼
