SST Technology Follow-On Program -Phase II. Noise Suppressor/Nozzle Development. Volume IX. Performance Technology -Analysis of the Low Speed Performance of Multitube Suppressor/Ejector Nozzles (0-167kn).

摘要

The effects of geometric variables on the performance of multitube suppressor/ejector nozzles are described and quantified for static and low forward velocity cases. The bulk of the investigation concentrates on configurations compatible with supersonic transport engine exhaust systems. Experimental results are presented for 28related,model-scale suppressor/ejector configurations tested at nozzle pressure ratios from 2to 4over a range of velocities from 0to 167kn. High static performance and minimum lapse rate are shown to be compatible through the proper selection of suppressor/ejector geometry and the optimum ejector inlet area. (Author)