Influence of synthetic jet location on active control of an airfoil at low Reynolds number

Influence of synthetic jet location on active control of an airfoil at low Reynolds number The reattachment of post-stall separated flow on a NACA 0025 airfoil at a Reynolds number of 100,000 and angle-of-attack of 12 $$^\circ$$ ∘ using synthetic jet control was studied experimentally. The goal of this work was to study the effect of control parameters including blowing ratio, frequency, and in particular, slot location, on aerodynamic performance. Slot locations both upstream and downstream of the mean separation point were tested. The results showed that for both drag reduction and lift increase, once a particular blowing ratio was met, the benefits of control saturated. Positioning the slot at the most upstream location was found to be the most effective, both in terms of having the lowest threshold blowing ratio and producing the largest lift-to-drag ratios. A monotonic increase in threshold blowing ratio (defined as being the blowing ratio required for fully attached flow) and decrease in lift-to-drag was observed as the slot location moved downstream. It was also found that while forcing at a frequency corresponding to the wake instability led to maximum lift increase, forcing in the range of the separated shear layer instability (frequencies an order of magnitude larger) led to maximum drag reduction. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Experiments in Fluids Springer Journals

Influence of synthetic jet location on active control of an airfoil at low Reynolds number

Loading next page...
 
/lp/springer_journal/influence-of-synthetic-jet-location-on-active-control-of-an-airfoil-at-vWUC4NAVHJ
Publisher
Springer Berlin Heidelberg
Copyright
Copyright © 2017 by Springer-Verlag GmbH Germany
Subject
Engineering; Engineering Fluid Dynamics; Fluid- and Aerodynamics; Engineering Thermodynamics, Heat and Mass Transfer
ISSN
0723-4864
eISSN
1432-1114
D.O.I.
10.1007/s00348-017-2387-x
Publisher site
See Article on Publisher Site

References

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

$49/month

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.

$588

$360/year

billed annually
Start Free Trial

14-day Free Trial