Vectoring thrust using confined countercurrent shear layers

P. J. Strykowski, G. F. Schmid, F. S. Alvi, A. Krothapalli

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations


A fluidic scheme is described which exploits a confined countercurrent shear layer to achieve multiaxis thrust vector response of high speed jets in the absence of moving parts. Continuous control of the thrust vector angle is demonstrated in supersonic exhaust up to Mach 2, and in nozzle geometries including rectangular, diamond and axisymmetric cross sections. Thrust vector angles up to at least 20° can be achieved at slew rates in excess of 180 degrees per second. Secondary mass flow requirements for control are shown to be less than 2% of the primary jet mass. The confined shear layer is susceptible to both attached and unattached flow regimes, the nature of which will be discussed.

Original languageEnglish (US)
Title of host publication28th Fluid Dynamics Conference
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
StatePublished - Jan 1 1997
Event28th Fluid Dynamics Conference, 1997 - Snowmass Village, United States
Duration: Jun 29 1997Jul 2 1997


Other28th Fluid Dynamics Conference, 1997
Country/TerritoryUnited States
CitySnowmass Village


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