This study presents a flow model for a single screw extruder which has been investigated by means of analytical and numerical methods. Flow phenomena in single screw extruders has evoked attention of many researchers since non-Newtonian type of fluid transport by an extruder is utilized in many industrial applications. In this study we focused on the Newtonian-type of fluid transport by a single screw extruder since we aimed to generate an analytical model for the simplified Navier-Stokes equations under certain boundary conditions. The analytical model for a steady, laminar, isothermal and incompressible flow is derived using integral transform technique for a highly viscous flow where the convective acceleration terms are assumed to be negligible. Numerical investigation is conducted by an incompressible, laminar, finite volume based flow solver using a Volume of Fluid (VoF) approximation. An appropriate single-screw extruder model is used for the simulations. The novelty of the study relies on the usage of a simplified analytical model for a highly viscous flow and the comparison between the analytical and numerical results where the numerical results are obtained by a two-phase flow solver for the full Navier-Stokes equations using the complex extruder geometry.
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ASME 2016 International Mechanical Engineering Congress and Exposition
November 11–17, 2016
Phoenix, Arizona, USA
Conference Sponsors:
- ASME
ISBN:
978-0-7918-5061-9
PROCEEDINGS PAPER
Numerical and Analytical Investigation of Viscous Fluids in a Screw Extruder
Mustafa Ozsipahi,
Mustafa Ozsipahi
Istanbul Technical University, Istanbul, Turkey
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Sertac Cadirci,
Sertac Cadirci
Istanbul Technical University, Istanbul, Turkey
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Hasan Gunes
Hasan Gunes
Istanbul Technical University, Istanbul, Turkey
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Mustafa Ozsipahi
Istanbul Technical University, Istanbul, Turkey
Sertac Cadirci
Istanbul Technical University, Istanbul, Turkey
Hasan Gunes
Istanbul Technical University, Istanbul, Turkey
Paper No:
IMECE2016-66124, V007T09A034; 4 pages
Published Online:
February 8, 2017
Citation
Ozsipahi, M, Cadirci, S, & Gunes, H. "Numerical and Analytical Investigation of Viscous Fluids in a Screw Extruder." Proceedings of the ASME 2016 International Mechanical Engineering Congress and Exposition. Volume 7: Fluids Engineering. Phoenix, Arizona, USA. November 11–17, 2016. V007T09A034. ASME. https://doi.org/10.1115/IMECE2016-66124
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