Visualization of wave propagation within a supersonic two-dimensional cavity by digital streak schlieren

Visualization of wave propagation within a supersonic two-dimensional cavity by digital streak... Optical measurements were carried out in planar two-dimensional open shallow cavities in order to determine how the flow field inside the cavity changes if the length-to-depth ratio of the cavity and the conditions of the boundary layer at the cavity leading edge are varied. The main challenge in this configuration, namely the fact that there are often no clearly identifiable wave fronts in the flow within the cavity, was overcome by applying a digital streak schlieren technique in combination with time-resolved high-speed flow visualizations. Using this approach, one can identify the propagation of waves within the cavity which allows one to determine the frequencies of flow oscillations inside the cavity entirely by optical means. The results from these measurements showed excellent agreement with independently conducted pressure measurements, simulations and analytical predictions. The applied technique also provides a measurement for the convective flow velocity within the cavity, for which different values can be found in the literature. The paper presents the results obtained for a Mach 2 supersonic flow over shallow rectangular open cavities with length-to-depth ratios of 3, 5, 6 and 8. Experiments in Fluids Springer Journals

Visualization of wave propagation within a supersonic two-dimensional cavity by digital streak schlieren

Loading next page...
Springer Berlin Heidelberg
Copyright © 2015 by Springer-Verlag Berlin Heidelberg
Engineering; Engineering Fluid Dynamics; Fluid- and Aerodynamics; Engineering Thermodynamics, Heat and Mass Transfer
Publisher site
See Article on Publisher Site


You’re reading a free preview. Subscribe to read the entire article.

DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 12 million articles from more than
10,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Unlimited reading

Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.

Stay up to date

Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.

Organize your research

It’s easy to organize your research with our built-in tools.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

Monthly Plan

  • Read unlimited articles
  • Personalized recommendations
  • No expiration
  • Print 20 pages per month
  • 20% off on PDF purchases
  • Organize your research
  • Get updates on your journals and topic searches


Start Free Trial

14-day Free Trial

Best Deal — 39% off

Annual Plan

  • All the features of the Professional Plan, but for 39% off!
  • Billed annually
  • No expiration
  • For the normal price of 10 articles elsewhere, you get one full year of unlimited access to articles.



billed annually
Start Free Trial

14-day Free Trial