0

Full Content is available to subscribers

Subscribe/Learn More  >

On the Modeling of a Rectangular Synthetic Jet

[+] Author Affiliations
Gopi Krishnan, Kamran Mohseni

University of Colorado - Boulder, Boulder, CO

Paper No. IMECE2008-68095, pp. 893-899; 7 pages
doi:10.1115/IMECE2008-68095
From:
  • ASME 2008 International Mechanical Engineering Congress and Exposition
  • Volume 10: Heat Transfer, Fluid Flows, and Thermal Systems, Parts A, B, and C
  • Boston, Massachusetts, USA, October 31–November 6, 2008
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4871-5 | eISBN: 978-0-7918-3840-2
  • Copyright © 2008 by ASME

abstract

The flow field of a rectangular synthetic jet is studied in this paper. It is known that synthetic jets exhibit similarities to continuous turbulent jets in that the far field velocity profile of synthetic jets displays self-similar behavior as well. In this paper we systematically model the a rectangular synthetic jet by applying the argument that synthetic jets can be described by the same equations used to describe continuous laminar jets, with the replacement of the kinematic viscosity of laminar flow, with the virtual kinematic viscosity obtained from the experiments on a synthetic jet. The virtual kinematic viscosity is obtained through experimental measurements of the time average velocity profiles using hot wire anemometry. The virtual kinematic viscosity of the synthetic jet under study was found to exceed that of a turbulent jet of equivalent momentum. The inherent periodic excitation of the synthetic is attributed to the increased virtual kinematic viscosity, which results in the faster spreading and increased entrainment observed in experiments. It is observed that the variation in the centerline velocity and jet width with axial distance, for various actuator stroke lengths collapse onto single curves when scaled appropriately.

Copyright © 2008 by ASME

Figures

Tables

Interactive Graphics

Video

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

NOTE:
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