TY - GEN
T1 - Stereoscopic piv of supersonic flow past an ogive-cylinder in the presence of off-axis laser energy deposition
AU - Khamseh, Arastou Pournadali
AU - Kiriakos, Ramez M.
AU - Demauro, Edward P.
N1 - Funding Information:
The authors would like to thank Robert Panco, Mario Rivero, John Petrowski and Paul Pickard for their kind support and help through setting up the experiment in the wind tunnel lab. In addition, the authors would also like to thank Prof. Doyle D. Knight and Nadia Kianvashrad for their input. The authors gratefully acknowledge the Emil Buehler Perpetual Trust for their support of the supersonic wind tunnel.
Publisher Copyright:
© 2020 American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.
PY - 2020
Y1 - 2020
N2 - Experiments were performed within Rutgers University’s supersonic wind tunnel to study the effects of off-axis laser energy deposition on the flow field about an ogive-cylinder. In this experiment, the perturbation of the flow field was accomplished by using an infrared laser source, focused to a point ahead of the ogive-cylinder. Stereoscopic particle image velocimetry (SPIV) measurements were performed to quantify the effects of energy deposition on the flow field at discrete time delays following the generation of the spark. The SPIV results showed a measurable change in streamwise velocity about the ogive-cylinder, downstream of shock structure; in contrast, the spark was shown to have little influence on the vertical velocity component. Data corresponding to later times showed the passage of an induced jet through the flow field. The jet rotated about its axis as it convected, in agreement with previous qualitative imaging. These results demonstrate the feasibility of using SPIV to investigate the influence of laser energy deposition on the flow field.
AB - Experiments were performed within Rutgers University’s supersonic wind tunnel to study the effects of off-axis laser energy deposition on the flow field about an ogive-cylinder. In this experiment, the perturbation of the flow field was accomplished by using an infrared laser source, focused to a point ahead of the ogive-cylinder. Stereoscopic particle image velocimetry (SPIV) measurements were performed to quantify the effects of energy deposition on the flow field at discrete time delays following the generation of the spark. The SPIV results showed a measurable change in streamwise velocity about the ogive-cylinder, downstream of shock structure; in contrast, the spark was shown to have little influence on the vertical velocity component. Data corresponding to later times showed the passage of an induced jet through the flow field. The jet rotated about its axis as it convected, in agreement with previous qualitative imaging. These results demonstrate the feasibility of using SPIV to investigate the influence of laser energy deposition on the flow field.
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U2 - 10.2514/6.2020-1059
DO - 10.2514/6.2020-1059
M3 - Conference contribution
AN - SCOPUS:85091753830
SN - 9781624105951
T3 - AIAA Scitech 2020 Forum
SP - 1
EP - 16
BT - AIAA Scitech 2020 Forum
PB - American Institute of Aeronautics and Astronautics Inc, AIAA
T2 - AIAA Scitech Forum, 2020
Y2 - 6 January 2020 through 10 January 2020
ER -