Synthetic jets at large Reynolds number and comparison to continuous jets

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Experimental measurements and flow visualization of synthetic jets and similar continuous jets are described. The dimensionless stroke length necessary to form a 2-D synthetic jet is between 5 and 10, with wider-nozzle jets consistently requiring a smaller value. Synthetic jets are wider, slower and have more momentum than similar continuous jets. Synthetic jets are generated using four nozzle widths that vary by a factor of four, and the driving frequency is varied over an order of magnitude. The resultant jets are in the range 13.5 < L{sub o}/h < 80.8 and 695 < Re{sub Uo} < 14700. In spite of ... continued below

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20 p.

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Smith, B. L. (Barton L.) & Swift, G. W. (Gregory W.) January 1, 2001.

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Description

Experimental measurements and flow visualization of synthetic jets and similar continuous jets are described. The dimensionless stroke length necessary to form a 2-D synthetic jet is between 5 and 10, with wider-nozzle jets consistently requiring a smaller value. Synthetic jets are wider, slower and have more momentum than similar continuous jets. Synthetic jets are generated using four nozzle widths that vary by a factor of four, and the driving frequency is varied over an order of magnitude. The resultant jets are in the range 13.5 < L{sub o}/h < 80.8 and 695 < Re{sub Uo} < 14700. In spite of the large range of stroke lengths, the near-field behavior of the synthetic jets scales with L{sub o}/h.

Physical Description

20 p.

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  • "Submitted to: American Institute of Aeronautics and Astronautics 31 Fluid Dynamics Meeting, Anaheim, CA, June 11-14, 2001".

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  • Report No.: LA-UR-01-2220
  • Report No.: AIAA 2001-3030
  • Report No.: AIAA Paper 2001-3030
  • Grant Number: none
  • Office of Scientific & Technical Information Report Number: 975304
  • Archival Resource Key: ark:/67531/metadc925962

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • January 1, 2001

Added to The UNT Digital Library

  • Nov. 13, 2016, 7:26 p.m.

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  • Dec. 12, 2016, 1:32 p.m.

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Smith, B. L. (Barton L.) & Swift, G. W. (Gregory W.). Synthetic jets at large Reynolds number and comparison to continuous jets, article, January 1, 2001; United States. (digital.library.unt.edu/ark:/67531/metadc925962/: accessed September 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.