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ISSN Druckformat: 2152-5102
ISSN Online: 2152-5110
Indexed in
Drag Reduction by Polymer Additions in Once Through Systems
ABSTRAKT
A mathematical equation was developed, based on macroscopic balances, for efflux time during gravity draining of a Newtonian liquid from a large cylindrical tank through two-exit pipes located at the bottom of the tank, the flow in each of the pipes being turbulent. The equation was verified with the experimental data. Efflux time comparisons were also made with that of single exit pipe system both in the absence and presence of polymer additions to arrive at the minimum time required for draining contents of the storage vessel. Further, the effect of polymer additions on efflux time for two-exit pipe system was also carried out. The extent of increase in Froude number on the addition of water-soluble polymer was also established.
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Ramana M. Venkata, Subbarao Ch. V., singh P. V. Gopal, K.M.M Krishna Prasad, Drag reduction using mixed solutions of hydrotrope and surfactant in gravity driven flow systems, i-manager's Journal on Future Engineering and Technology, 8, 3, 2013. Crossref