Vectoring Single Expansion Ramp Nozzle (VSERN) static model test programA variable throat-area, side-vectoring single expansion ramp nozzle (VSERN) concept's internal performance characteristics are studied with a view to controlling the bypass flow of an unmixed turbofan engine. Static tests have been conducted on VSERN at NASA-Langley using a variety of parametric models giving attention to the effects of upstream bend angle, ramp geometry, area ratio, and nozzle pressure ratio on static thrust and flow performance. Advantages of VSERN over the conventional vectoring axisymmetric convergent side-nozzles typified by those of the Harrier's Pegasus engine.
Document ID
19880057494
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Eames, D. J. H. (Rolls-Royce, Inc. Atlanta, GA, United States)
Mason, M. L. (NASA Langley Research Center Hampton, VA, United States)