Shear effect on pressure and particle acceleration in high-Reynolds number turbulence
2008 (English)In: IUTAM SYMPOSIUM ON COMPUTATIONAL PHYSICS AND NEW PERSPECTIVES IN TURBULENCE, 2008, 11-14 p.Conference paper (Refereed)
Pressure fluctuations are an important ingredient in turbulence, however the variation of the pressure fluctuations inside a turbulent boundary layer is not well known and its generation not fully understood. One reason for this is the difficulty inherent in measuring the fluctuating pressure and, consequently, a lack of published experimental results of this quantity. In the present study, the new methods and improved measurement techniques are developed. Fluctuating pressure has been measured in turbulent boundary layer up to Rθ ≃ 20000 and in mixing layer up to Rλ ≃ O(10 3). In this report, the shear effect on the Kolmogorov’s -7/3 powerlaw scaling of pressure spectrum is discussed and the preliminary measurement of particle acceleration is reported.
Place, publisher, year, edition, pages
2008. 11-14 p.
, IUTAM Bookseries, 4
pressure statistics, particle acceleration, Kolmogorov scaling
Other Engineering and Technologies not elsewhere specified
IdentifiersURN: urn:nbn:se:kth:diva-87144DOI: 10.1007/978-1-4020-6472-2_27ISI: 000253667300027ScopusID: 2-s2.0-84861144593OAI: oai:DiVA.org:kth-87144DiVA: diva2:501428
IUTAM Symposium on Computational Physics and New Perspectives in Turbulence. Nagoya Univ, Nagoya, JAPAN. SEP 11, 2006-SEP 14, 2009
QC 201202162012-02-142012-02-142012-02-16Bibliographically approved