Abstract
An overview of in-flight experiments and modeling relevant to the compressible transverse jet, in subsonic and transonic crossflow, is described here. Modeling efforts employed a low order, locally two-dimensional representation of the transverse jet, relying on the presence and dynamics of the counter-rotating vortex pair that is observed to dominate the jet cross-section. The experiments involved injection of iodine-seeded nitrogen into compressible air flow, with trajectory visualization via planar laser-induced fluorescence (PLIF) imaging of the iodine. The experiments were conducted in a flight test fixture situated under the fuselage of an F-104G aircraft, allowing examinations of crossflows in the high subsonic and transonic flow regimes. Both uniform crossflows and the crossflow created by compressible flow over a rearward-facing step were considered in these studies. Further details on these studies may be found in separate papers (Heister & Karagozian (1990a), Heister & Karagozian (1990b), Wang, et al. (1995), Karagozian, et al. (1996)).
Work by these authors on compressible transverse jets has been supported by NASA Dryden Flight Research Center. Mr. Wang is now a Member of the Technical Staff of the Aerospace Corporation.
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Karagozian, A.R., Wang, KS.C., Smith, O.I. (2003). Jets Injected Normally into Compressible Crossflow. In: Karagozian, A.R., Cortelezzi, L., Soldati, A. (eds) Manipulation and Control of Jets in Crossflow. International Centre for Mechanical Sciences, vol 439. Springer, Vienna. https://doi.org/10.1007/978-3-7091-2792-6_3
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DOI: https://doi.org/10.1007/978-3-7091-2792-6_3
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