Abstract
Turbulence in compressible flows plays a central role in applications such as air-fuel mixing in supersonic combustors and is significantly more complex than incompressible turbulence due to the presence of fluctuating thermodynamic quantities. As such, models like the Strong Reynolds Analogy (SRA) are used to relate these quantities. However, SRA validity has been examined primarily in boundary-layer flows. In this work, a newly developed Two-Point Focused Laser Differential Interferometry (2-FLDI) system is implemented in a two-dimensional parallel supersonic jet. The diagnostic is described in detail, including optical alignment procedures, calibration methods, and data analysis techniques. Measurements acquired at multiple streamwise locations downstream of the injector provide an initial characterization of the flowfield and demonstrate the capability 2-FLDI for studying density-related turbulence and convecting turbulent structures in unbounded flows.
Recommended Citation
J. Gary et al., "2-Point Focused Laser Differential Interferometry Measurements Of A Parallel Jet In Supersonic Flow," 27th AIAA International Space Planes and Hypersonic Systems and Technologies Conference, American Institute of Aeronautics and Astronautics, Jan 2026.
The definitive version is available at https://doi.org/10.2514/6.2026-5147
Department(s)
Mechanical and Aerospace Engineering
Publication Status
Full Access
International Standard Book Number (ISBN)
978-162410779-5
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2026 American Institute of Aeronautics and Astronautics, All rights reserved.
Publication Date
01 Jan 2026
