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CFD Analysis of two phase flow with a prediction of torque demand of a Bi-lobe rotor of a mixing chamber

Chetan, CJ and Rajan, NKS and Kulkarni, PS and Padmanabhan, Babu (2012) CFD Analysis of two phase flow with a prediction of torque demand of a Bi-lobe rotor of a mixing chamber. In: ICCFD: International Conference on Computational Fluid Dynamics, July 9-13, 2012, Big Island, Hawaii.

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Abstract

An attempt to study the fluid dynamic behavior of two phase flow comprising of solid and liquid with nearly equal density in a geometrical case that has an industrial significance in theareas like processing of polymers, food, pharma ceutical, paints. In this work,crystalline silica is considered as the dispersed medium in glycerin. In the CFD analysis carried out,the two phase components are considered to be premixed homogeneously at the initial state. The flow in a cylinder that has an axially driven bi-lobe rotor, a typical blender used in polymer industry for mixing or kneading to render the multi-component mixture to homogeneous condition is considered. A viscous, incompressible, isothermal flow is considered with an assumption that the components do not undergo any physical change and the solids are rigid and mix in fully wetting conditions. Silica with a particle diameter of 0.4 mm is considered and flow is analyzed for different mixing fractions. An industry standard CFD code is used for solving 3D-RANS equations. As the outcome of the study the torque demand by the bi-lobe rotor for different mixture fractions which are estimated show a behavioral consistency to the expected physical phenomena occurring in the domain considered.

Item Type: Conference Paper
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Additional Information: Copyright of this article belongs to International Conference on Computational Fluid Dynamics.
Keywords: Multiphase Flow, Polymer Mixing; Viscous Flow; Viscous Torque
Department/Centre: Division of Mechanical Sciences > Aerospace Engineering (Formerly, Aeronautical Engineering)
Date Deposited: 13 Feb 2014 07:41
Last Modified: 13 Feb 2014 07:41
URI: http://eprints.iisc.ernet.in/id/eprint/48403

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