Journal
NUMERICAL HEAT TRANSFER PART A-APPLICATIONS
Volume 60, Issue 4, Pages 347-380Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/10407782.2011.600580
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Funding
- board of research in nuclear sciences (India) [2007/36/14-BRNS/718]
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The present work involves detailed nondimensional study of density-matched viscosity-stratified flow at various viscosity ratio (eta) and Reynolds number. For fully-developed flow with increasing eta, it is found that the maximum U-velocity (U-max), and pressure gradient increases whereas interface height decreases monotonically. For developing flow, it is shown that the U-max increases whereas the interface height decreases asymptotically along the axial direction. However, the increase and decrease is more for square duct as compared to the plane channel. Furthermore, a set of development-length correlations are proposed for the plane channel. The present results can be used for the efficient transportation of a more viscous fluid.
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