NDLI: Anaytical Study of the Oscillating Channel Flow Solution With Application to the Turbulent Case

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Svetlana, V. Poroseva Sharath, S. Girimaji
Copyright Year	2003
Abstract	In turbulent channel flows with imposed pressure-gradient oscillations the extension of the Stokes second problem solution has been used as a laminar benchmark. The present study shows that the Stokes solution is an appropriate approximation to the laminar channel flow solution only in the limit of an infinitely wide channel or very high frequencies of imposed oscillations. In a finite-width channel with finite-frequency oscillations, the exact channel flow solution should be used. The paper provides the thorough examination of the spatio-frequency variations of such solution. Different frequency regimes are described. It is shown that the borders between these regimes vary depending on the distance from a channel wall and a flow characteristic considered. Difference in high-frequency regimes in profiles of the phase and the amplitude is pointed out. Changes in the behavior of the laminar oscillating flow characteristics in the presence of the turbulent mean flow are considered. Oscillating channel and pipe flows are qualitatively compared.
Sponsorship	Fluids Engineering Division
Starting Page	1073
Ending Page	1078
Page Count	6
File Format	PDF
ISBN	0791836975
DOI	10.1115/FEDSM2003-45616
e-ISBN	0791836738
Volume Number	Volume 2: Symposia, Parts A, B, and C
Conference Proceedings	ASME/JSME 2003 4th Joint Fluids Summer Engineering Conference
Language	English
Publisher Date	2003-07-06
Publisher Place	Honolulu, Hawaii, USA
Access Restriction	Subscribed
Subject Keyword	Turbulence Approximation Pipe flow Oscillations Pressure gradient Channel flow Flow (dynamics)
Content Type	Text
Resource Type	Article

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