Studying the Interaction of Liquid and Solid in the Flow of Liquid in Annulus by CFD Analysis

Abstract:

This article is aimed to define the flow in the annulus. The shaft is deposited in a case which has at inlet and outlet recess. The rotor moves in the case. This movement can be divided into the rotation and precession. It is situation where the rotor rotates around own axis and together moves along the circle. The solution of the problem was the initiative in practice where this type of movement occurs in many components, e.g. sliding journal bearings. The fluid flows in the annulus due to the pressure gradient between inlet and outlet and together takes place rotational movement due to movement of the rotor. Between the liquid and the solid of an interaction which results in a change in the forces. The problem is solved by mathematical CFD solver ANSYS Fluent. Based on the characteristics of the problem has been defined corresponding to a mathematical model for the selected types of liquids - VG 32 mineral oil, VG 150 mineral oil and water. Individual variants of used liquids are compared with each other courses of forces acting on the rotor under the same boundary conditions.

• Periodical: Applied Mechanics and Materials (Volume 630)
• Pages: 220-227
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.630.220
• Online since: September 2014
• Authors: Michal Kozdera, Marian Bojko*, Sylva Drábková, Milada Kozubková
• Keywords: Annulus, ANSYS FLUENT, CFD Modeling, Fluid Flow, Liquid

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