Experimental investigation of non-slender delta-wing planforms at low reynolds numbers

Han Tu, Melissa A. Green, Matthew Marzanek, David E. Rival

Research output: Chapter in Book/Entry/PoemConference contribution

3 Scopus citations


A proper understanding of vorticity production, reorientation, and annihilation around and in the wake of complex three-dimensional bodies such as unmanned combat air vehicles (UCAVs) would provide critical insight for effective flow-control development in unsteady environments. Force measurement and steady three-dimensional flow visualization of low Reynolds number baseline cases have been carried out on a steady delta wing. Force measurements, which were conducted at angles of attack 10°, 15°, 20°, 25° and 30°, show that coefficient of drag has a tendency to increase with angle of attack, while coefficient of lift reaches its maximum value at 20°. Reconstructed three-dimensional time-averaged flow visualization conducted at angle of attack 10°, 15°, 20°, 25° and 30° shows vortices with larger size and strength are generated and dissipate faster at higher angles of attack. These results compare analogously with similar baseline experimental results at high Reynolds number.

Original languageEnglish (US)
Title of host publication2018 Fluid Dynamics Conference
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624105531
StatePublished - 2018
Event48th AIAA Fluid Dynamics Conference, 2018 - Atlanta, United States
Duration: Jun 25 2018Jun 29 2018

Publication series

Name2018 Fluid Dynamics Conference


Other48th AIAA Fluid Dynamics Conference, 2018
Country/TerritoryUnited States

ASJC Scopus subject areas

  • Aerospace Engineering
  • Engineering (miscellaneous)


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