@article{6d0c98a74df648348378ea01a7f0c07b,
title = "Applying the boundary-layer independence principle to turbulent flows",
abstract = "Velocities measured in turbulent boundary layers over yawed flat plates confirmed that the mean velocity profiles normal to the leading edge are proportional to the velocity profiles parallel to it, with a proportionality constant depending on the yaw angle. This turned out to be the necessary and sufficient condition to make the wall stress components normal and parallel to the leading edge also proportional in the same manner, thus reaffirming the boundary-layer independence principle for turbulent and laminar flows alike. Reinterpretation of old experiments thus changed the mantra stating, {"}the independence principle does not apply to turbulent flow{"}, thus providing a new insight into three-dimensional boundary-layer flows on yawed, high-aspect-ratio wings. It explains the prevalence of attached spanwise flow near the trailing edges of such wings, and it provides a rationale for turbulence modeling on them. Furthermore, it indicates the direction along which active separation control should take place.",
author = "Israel Wygnanski and Philipp Tewes and Lutz Taubert",
note = "Funding Information: The work was supported by the U.S. Air Force Office of Scientific Research under grant number FA9550-10-01-0215 monitored by D. Smith. The views and conclusions contained herein are those of the authors and should not be interpreted as necessarily representing the official policies or endorsements, either expressed or implied, of the U.S. Air Force Office of Scientific Research or the U.S. Government. The lead author wishes to thank A. Tumin, E. Reshotko, A. Shmilovich, and P. Spalart, whose frank criticism of the draft of this paper led to its reexaminations and ultimate improvement of its content.",
year = "2014",
month = jan,
doi = "10.2514/1.C032206",
language = "אנגלית",
volume = "51",
pages = "175--182",
journal = "Journal of Aircraft",
issn = "0021-8669",
publisher = "American Institute of Aeronautics and Astronautics Inc. (AIAA)",
number = "1",
}