Delay of boundary-layer transition along a flat plate with adverse pressure gradient is achieved via dielectric barrier discharges. In contrast to earlier investigations, transition is initiated by naturally occurring Tollmien–Schlichting waves. A single dielectric barrier discharge actuator is used to create a body force that locally alters the flow stability leading to an attenuation of broadband disturbances. Hot-wire measurements characterize the resulting transition delay, and particle image velocimetry clarifies the local influence on the velocity profiles. Linear stability theory is applied to analyze a numerical solution of this boundary-layer flow, showing good agreement with the experimentally measured data. The stability analysis shows that disturbances are locally attenuated and transition is correctly predicted to occur at Reynolds numbers increased by 10 %. In contrast to previous investigations, the experiments are conducted at a reasonably high free-stream velocity of 20 m/s paving the way for planned in-flight experiments.
Experiments in Fluids – Springer Journals
Published: Mar 9, 2013
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
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.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera