Abstract
Axisymmetric near wake flow behind a body of revolution has been analysed. It is shown that the logarithmic layer of the upstream turbulent boundary layer continues to be valid for some more distance in the near wake and as the streamwise distance is increased the logarithmic layer is slowly getting destroyed. It is also shown that the central line velocity exhibits a logarithmic behaviour with streamwise distance.
Highlights
Turbulent flows are ubiquitous in natural phenomena and engineering applications [1] a mathematically tractable description of them is desirable for their prediction and control
Available research reports on axisymmetric near wake are pertaining to experimental works[9-13]
We focus our attention in the inner near wake region
Summary
Turbulent flows are ubiquitous in natural phenomena and engineering applications [1] a mathematically tractable description of them is desirable for their prediction and control. Turbulent wakes are one of the least studied flows, mostly due to their long development length and the difficulty in measuring low-level turbulent intensities in the far wake. Alber[6] studied the development of the turbulent near wake of a thin flat plate using method of asymptotic expansions His analysis showed that the velocity profile varied logarithmically with normal distance in the inner near wake. Available research reports on axisymmetric near wake are pertaining to experimental works[9-13] These studies essentially highlight special features of thick axisymmetric turbulent boundary layers and axisymmetric turbulent near wake regions. The turbulent flows, because of memory, take long time and distance before adjusting and coming to equilibrium with a new environment[14] In view of this memory, it is reasonable to assume the velocity and length scales determining the turbulent boundary layer near training. Edge should be relevant velocity and length scales for the near-wake
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
