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Title: Shock boundary layer interactions in a low aspect ratio duct

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Journal Article: Publisher's Accepted Manuscript
Journal Name:
International Journal of Heat and Fluid Flow
Additional Journal Information:
Journal Volume: 51; Journal Issue: C; Related Information: CHORUS Timestamp: 2017-06-23 16:39:00; Journal ID: ISSN 0142-727X
Country of Publication:
United Kingdom

Citation Formats

Campo, Laura M., and Eaton, John K.. Shock boundary layer interactions in a low aspect ratio duct. United Kingdom: N. p., 2015. Web. doi:10.1016/j.ijheatfluidflow.2014.10.003.
Campo, Laura M., & Eaton, John K.. Shock boundary layer interactions in a low aspect ratio duct. United Kingdom. doi:10.1016/j.ijheatfluidflow.2014.10.003.
Campo, Laura M., and Eaton, John K.. 2015. "Shock boundary layer interactions in a low aspect ratio duct". United Kingdom. doi:10.1016/j.ijheatfluidflow.2014.10.003.
title = {Shock boundary layer interactions in a low aspect ratio duct},
author = {Campo, Laura M. and Eaton, John K.},
abstractNote = {},
doi = {10.1016/j.ijheatfluidflow.2014.10.003},
journal = {International Journal of Heat and Fluid Flow},
number = C,
volume = 51,
place = {United Kingdom},
year = 2015,
month = 2

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1016/j.ijheatfluidflow.2014.10.003

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Cited by: 5works
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  • A numerical calculation has been performed for the simultaneously developing laminar velocity and temperature fields in the entrance region of an isothermal rectangular duct rotating about an axis perpendicular to the duct axis. The present paper particularly addresses the effect of the aspect ratio of the rectangular duct. The vorticity-velocity method with the power law scheme is employed to solve the governing equations for the flow and heat transfer. It is seen that pairs of counterrotating vortices appear in the cross section of the duct. The number of vortex pairs depends on the aspect ratio of the duct. Under somemore » circumstances, the number of vortex pairs with axial position. The numerically calculated stability boundary points for small aspect ratio show excellent agreement with the neutral stability curve, which was obtained by linear stability analysis. Friction factor and Nusselt number are presented as functions of axial position, and it is seen that they are strongly affected by the vortices. Comparisons with existing theoretical and experimental results are also presented.« less
  • A numerical simulation was carried out to solve the full three dimensional governing equations for steady simultaneously developing laminar flow and heat transfer. The fluid was considered to be a purely viscous one which followed the power law behavior. Results are presented and discussed for constant wall heat flux (both axially and peripherally) and constant wall temperature boundary conditions over a range of power law indices.
  • The study of flows through coiled ducts and channels has attracted considerable attention not only because of their ample applications in Chemical, Mechanical, Civil, Nuclear and Biomechanical engineering but also because of their ample applications in other areas, such as blood flow in the veins and arteries of human and other animals. In this paper, a numerical study is presented for the fully developed two-dimensional flow of viscous incompressible fluid through a loosely coiled rectangular duct of large aspect ratio. Numerical calculations are carried out by using a spectral method, and covering a wide range of the Dean number, Dn,more » for two types of curvatures of the duct. The main concern of the present study is to find out effects of curvature as well as formation of secondary vortices on unsteady solutions whether the unsteady flow is steady-state, periodic, multi-periodic or chaotic, if Dn is increased. Time evolution calculations as well as their phase spaces are performed with a view to study the non-linear behavior of the unsteady solutions, and it is found that the steady-state flow turns into chaotic flow through various flow instabilities, if Dn is increased no matter what the curvature is. It is found that the unsteady flow is a steady-state solution for small Dn’s and oscillates periodically or non-periodically (chaotic) between two- and twelve-vortex solutions, if Dn is increased. It is also found that the chaotic solution is weak for small Dn’s but strong as Dn becomes large. Axial flow distribution is also investigated and shown in contour plots.« less
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