Full Content is available to subscribers

Subscribe/Learn More  >

Effects on Momentum Thickness and Density Ratio for Side-Jet Formation in Round Jets With Variable-Density

[+] Author Affiliations
Yasuhiro Kaneda, Akinori Muramatsu

Nihon University, Funabasi, Chiba, Japan

Paper No. AJK2011-21004, pp. 3737-3744; 8 pages
  • ASME-JSME-KSME 2011 Joint Fluids Engineering Conference
  • ASME-JSME-KSME 2011 Joint Fluids Engineering Conference: Volume 1, Symposia – Parts A, B, C, and D
  • Hamamatsu, Japan, July 24–29, 2011
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 978-0-7918-4440-3
  • Copyright © 2011 by JSME


If the mass density of an issuing gas is sufficiently lower than that of the ambient gas, radial ejections of the jet gas may be generated near the nozzle exit. These radial ejections are referred to as side jets. The parameters for side-jet formation have been reported to be the density ratio of the jet gas and the ambient gas and the momentum thickness at the nozzle exit. In the present experimental study, gases with variable density were discharged into still air. Two round nozzles having different area contraction ratios were used in order to vary the momentum thickness. The momentum thicknesses were obtained after the velocity profiles at the nozzle exit were measured by a hot-wire probe and a hot-wire concentration probe for jets with various density ratios and issuing velocities. The existence of side jets was confirmed by flow visualization of the jets using a laser sheet. The domain for side-jet formation is illustrated using the non-dimensional momentum thickness and the density ratio.

Copyright © 2011 by JSME
Topics: Density , Momentum , Jets , Thickness



Interactive Graphics


Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In