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http://dx.doi.org/10.3795/KSME-B.2014.38.1.009

Flow and Displacement of Non-Newtonian Fluid(Power-Law Model) by Surface Tension and Gravity Force in Inclined Circular Tube  

Moh, Jeong Hah (Division of Mechanical & Automotive Engineering, Wonkwang Univ.)
Cho, Y.I. (Department of Mechanical Engineering and Mechanics, Drexel Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.38, no.1, 2014 , pp. 9-16 More about this Journal
Abstract
This paper presents the theoretical analysis of a flow driven by surface tension and gravity in an inclined circular tube. A governing equation is developed for describing the displacement of a non-Newtonian fluid(Power-law model) that continuously flows into a circular tube owing to surface tension, which represents a second-order, nonlinear, non-homogeneous, and ordinary differential form. It was found that quantitatively, the theoretical predictions of the governing equation were in excellent agreement with the solutions of the equation for horizontal tubes and the past experimental data. In addition, the predictions compared very well with the results of the force balance equation for steady.
Keywords
Surface Tension; Viscous Force; Gravity Force; Non-Newtonian Fluid; Displacement; Governing Equation; Power-law;
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