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Direct numerical simulation of fluid flow laden with many particles
Institution:1. BK21 Project, Mechanical Engineering Research Division, Seoul National University, San 56-1, Shinlim-dong, Kwanak-ku, Seoul 151-742, Republic of Korea;2. Department of Mechanical Engineering, Seoul National University of Technology, 172, Gongneung-2-dong, Nowon-ku, Seoul 139-743, Republic of Korea;3. School of Mechanical and Aerospace Engineering, Seoul National University, San 56-1, Shinlim-dong, Kwanak-ku, Seoul 151-742, Republic of Korea;1. Department of Chemical Engineering, Institute of Chemical Technology, Matunga, Mumbai 400 019, India;2. Homi Bhabha National Institute, Anushaktinagar, Mumbai 400 094, India;3. School of Engineering, University of Newcastle, Callaghan, NSW 2308, Australia;4. Department of Chemical Engineering, Indian Institute of Technology, Gandhinagar, Gujarat 382 424, India;5. Reliance Technology Group, Reliance Industries Limited, Navi Mumbai 400 701, India;1. Department of Mathematical Sciences, New Jersey Institute of Technology, Newark, NJ, USA;2. Mathematical Institute, University of Oxford, Oxford, England, UK
Abstract:Two-dimensional channel flow of fluid laden with many particles is studied by direct numerical simulation using the Navier–Stokes equation coupled with the equation of motion for respective particles. Fractional four-step method with Crank–Nicolson scheme and ALE technique is adopted for P2P1 mixed finite element formulation of the governing equations for fluid motion. The motion and distribution of particles in the fluid is virtually described and the calculated relative viscosity is compared with previous results within the limits of possibility. The effect of the ratio of channel gap to particle diameter on the relative viscosity and the tubular pinch effect are also delineated.
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