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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/109060


    Title: A Two-Fluid Model for Herschel-Bulkley Fluid Flow through Narrow Tubes
    Authors: Nallapu, Santhosh;Radhakrishnamacharya, G.
    Keywords: Effective Viscosity;Herschel-Bulkley Fluid;Hematocrit;Fahraeus-Lindqvist Effect;Yield Stress
    Date: 2016-09
    Issue Date: 2017-01-03 09:03:23 (UTC+8)
    Publisher: 淡江大學出版中心
    Abstract: A two-fluid model of Herschel-Bulkley fluid flow through tubes of small diameters is studied.
    It is assumed that the core region consists of Herschel-Bulkley fluid and Newtonian fluid in the
    peripheral region. The analytical solutions for velocity, flow flux, effective viscosity, core hematocrit
    and mean hematocrit have been derived and the effects of various relevant parameters on these flow
    variables have been studied. It is found that the effective viscosity, core hematrocit and mean
    hematrocit for Newtonian fluid is less than that for Bingham fluid, power-law fluid and HerschelBulkley
    fluid. It has been observed that the effective viscosity and mean hematocrit increase with yield
    stress, power-law index, hematocrit and tube radius but the core hematocrit decreases with hematocrit
    and tube radius. Further, it is also noticed that the flow exhibits the anomalous Fahraeus-Lindqvist
    effect.
    Relation: Journal of Applied Science and Engineering 19(3), pp.241-248
    DOI: 10.6180/jase.2016.19.3.01
    Appears in Collections:[淡江理工學刊] 第19卷第3期

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