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Paper
Title

Modeling and Simulation of Generalized Newtonian and Viscoelastic Fluid Flows in Screw Turning Extruder in the Presence of Leakage Flow Using OpenFOAM Software

Year: 1390
COI: PPSRC2011_131
Language: EnglishView: 1,228
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Authors

Yousef Tamsilian - Sharif University of Technology, Chemical and Petroleum Engineering Department, Tehran, Iran
Amirhosein Ahmadian
Sima Asaadi Iranagh
Ahmad Ramazani S.A

Abstract:

This manuscript presents a simulation of viscoelastic and generalized Newtonian fluid flows in a single screw extruder (SSE) considering that the extruder screw is turning instead of its barrel, which normally was considered in most simulations as an assumption. A three dimensional finite-volume scheme is used to solve momentum and the fluid constitutive equations. The really geometrical mesh of the channel is generated to investigate pressure, velocity, shear stress, and normal stress changes. The simulation is done considering the condition of existence and absence of leakage flow, and results are compared. The simulations concern incompressible flow of the Carreau–Yasuda generalized Newtonian and Phan–Thien/Tanner (PTT) viscoelastic fluids. The obtained results are shown in contour and vector form based on special position onto the axial flow. Numerical results demonstrate the influence of boundary conditions (fixed and mobile barrel assumption and omitted leakage assumption) and rheological properties on the flow characteristics in considered geometry. The results show that screw moving as realistic conditions instead of the mobile barrel assumption in single extruder have significant effects on pressure, stress, and velocity profiles comparing to results obtained from simulation with the assumption of fixed barrel boundary that currently is used to model extruder flows. Presented results show that the pressure profile and flow fields change upon changing the assumption of the static boundary. The simulations also predict the different pressure profile and flow characteristics for the generalized Newtonian and viscoelastic fluids.

Keywords:

Paper COI Code

This Paper COI Code is PPSRC2011_131. Also You can use the following address to link to this article. This link is permanent and is used as an article registration confirmation in the Civilica reference:

https://civilica.com/doc/134026/

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Tamsilian, Yousef and Ahmadian, Amirhosein and Asaadi Iranagh, Sima and Ramazani S.A, Ahmad,1390,Modeling and Simulation of Generalized Newtonian and Viscoelastic Fluid Flows in Screw Turning Extruder in the Presence of Leakage Flow Using OpenFOAM Software,Polymer Processing Society 2011 Asia/Australia Regional Meeting,Kish Island,https://civilica.com/doc/134026

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لیست زیر مراجع و منابع استفاده شده در این Paper را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود Paper لینک شده اند :

  • A.O.J. Adewale, Mater. Process. Technol. 2002, 128 , 196-204. ...
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Type of center: دانشگاه دولتی
Paper count: 15,066
In the scientometrics section of CIVILICA, you can see the scientific ranking of the Iranian academic and research centers based on the statistics of indexed articles.

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