Particle image velocimetry studies of a boundary layer perturbed by localized suction

Particle image velocimetry studies of a boundary layer perturbed by localized suction Difference experiments were carried out in a low-Reynolds number (490 based on momentum thickness) flat-plate boundary layer. Particle image velocimetry (PIV) was used to measure the two velocity components parallel to the plate in the boundary layer with and without weak localized suction through two holes at suction speeds of less than 1% of the free-stream value under otherwise identical conditions. The results from the preliminary PIV data show that suction does not affect the mean streamwise velocity profile, but decelerates the boundary layer in the vicinity of the suction holes. This deceleration is on average 6% of the mean speed at 13 viscous length scales above the plate and persists for at least 10 hole diameters downstream of the suction holes. Two-dimensional correlations of streamwise velocity fluctuations imply that even these low suction levels reduce the cross-stream and streamwise length scales in the boundary layer. Experiments in Fluids Springer Journals

Particle image velocimetry studies of a boundary layer perturbed by localized suction

Loading next page...
Copyright © 2001 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

There are no references for this article.

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