Time-resolved schlieren POD and aft deck pressure correlations on complex supersonic jet nozzles

Matthew G. Berry, Andrew S. Magstadt, Mohd Y. Ali, Mark N. Glauser, Christopher J. Ruscher, Sivaram Gogineni

Research output: Chapter in Book/Entry/PoemConference contribution

8 Scopus citations


This paper is an experimental investigation of a supersonic rectangular nozzle with aft deck used for three-stream engines. Correlations between time-resolved schlieren and near-field pressure were conducted. The jet utilizes a single expansion ramp nozzle (SERN) configuration along with multiple streams, operating at an ideally expanded bulk flow of Mj;1 = 1:6 and bypass stream of Mj;3 = 1:0. Time series were extracted from the schlieren images and correlated to hydrodynamic deck pressure. Since schlieren photography is an integrated view of the entire three-dimensional flow field, pressure sensor placements attempt to better identify flow physics. Proper orthogonal decomposition (POD) is then performed on the schlieren images and the time-dependent coefficients are related to the near-field deck pressure. Dynamic Mode Decomposition (DMD) is also applied to the schlieren field and the spatial modes are correlated to POD modes.

Original languageEnglish (US)
Title of host publicationAIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
ISBN (Electronic)9781624104473
StatePublished - 2017
Event55th AIAA Aerospace Sciences Meeting - Grapevine, United States
Duration: Jan 9 2017Jan 13 2017

Publication series

NameAIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting


Other55th AIAA Aerospace Sciences Meeting
Country/TerritoryUnited States

ASJC Scopus subject areas

  • Aerospace Engineering


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