Numerical Investigation of Effect of Rotor Phase Angle in Partially-Filled Rubber Mixing
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S. R. Das
, H. Poudyal and A. J. Chandy
Abstract
Among several operational parameters such as rotor speed, fill factor and ram pressure, the orientation of the mixing rotors with respect to each other plays a significant role in the mixing performance. An understanding of the flow field and mixing characteristics associated with the orientations of the rotors will help in obtaining a final product with a better quality. For that purpose three phase angle orientations: 45°, 90° and 180° are investigated here in a 75% filled chamber with two rotors counter-rotating at an even speed of 20 min–1. Two dimensional, transient, isothermal, incompressible simulations are carried out using a CFD code. While an Eulerian multiphase method was used to solve for the transport variables in the two phases: rubber and air, the volume of fluid (VOF) method was used to solve for the interface between the two phases. A non-Newtonian Carreau-Yasuda model was used to characterize rubber. Massless particles were injected in the domain to calculate statistical quantities in order to assess dispersive and distributive mixing characteristics associated with rotor orientations. The flow field is analyzed via pressure and velocity contours. Dispersive mixing was analyzed through histograms of mixing index and cumulative probability distribution functions of maximum shear stress experienced by the particles. Distributive mixing was quantified statistically using cluster distribution index and interchamber material transfer. The phase angle of 180° was found to perform the best in terms of both dispersive and distributive mixing characteristics.
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Articles in the same Issue
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- Influence of Carbon Fillers on Thermal Properties and Flammability of Polymeric Nanocomposites
- Regular Contributed Articles
- Polymer Flow Behavior Analysis Based on Physical Visualization Technology for Ultrasonic Vibration-Assisted Injection Molding
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- Mechanical Properties of Polydimethylsiloxane as a Function of the Amount and Type of Crosslinking Agent
- Numerical Investigation of Effect of Rotor Phase Angle in Partially-Filled Rubber Mixing
- Method of Calculating the Fluid Permeability of Machined Skin-Covered Porous Sheets from Experimental Flow Data
- Analysis of Models Predicting Morphology Transitions in Reactive Twin-Screw Extrusion of Bio-Based Polyester/Polyamide Blends
- A Combined Experimental and Modelling Approach towards an Optimized Heating Strategy in Thermoforming of Thermoplastics Sheets
- Analyzing the Influence of Surface Renewal on Diffusive Mass Transport in Vented Single-Screw Extruders
- Research on Optimizing Parameters of Thermal Bonding Technique for PMMA Microfluidic Chip
- PPS News
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- Seikei Kakou Abstracts
- Seikei-Kakou Abstracts
Articles in the same Issue
- Contents
- Contents
- Review Articles
- Influence of Carbon Fillers on Thermal Properties and Flammability of Polymeric Nanocomposites
- Regular Contributed Articles
- Polymer Flow Behavior Analysis Based on Physical Visualization Technology for Ultrasonic Vibration-Assisted Injection Molding
- Flexural Fatigue Performance of Glass Fiber/Epoxy Step-Wise Functionally and Non-Functionally Graded Composites of Different Structures
- Establishment and Effect of Constraint on Different Mechanical Properties of Bamboo Filler Reinforced Epoxy Composite
- Experimental Investigation on Mechanical and Thermo-Mechanical Properties of Alumina Filled Polypropylene Composites Using Injection Molding Process
- Development and Characterization of Polyurethane and Acrylonitrile Butadiene Styrene and their Compatibilized Blends
- Mechanical Properties of Polydimethylsiloxane as a Function of the Amount and Type of Crosslinking Agent
- Numerical Investigation of Effect of Rotor Phase Angle in Partially-Filled Rubber Mixing
- Method of Calculating the Fluid Permeability of Machined Skin-Covered Porous Sheets from Experimental Flow Data
- Analysis of Models Predicting Morphology Transitions in Reactive Twin-Screw Extrusion of Bio-Based Polyester/Polyamide Blends
- A Combined Experimental and Modelling Approach towards an Optimized Heating Strategy in Thermoforming of Thermoplastics Sheets
- Analyzing the Influence of Surface Renewal on Diffusive Mass Transport in Vented Single-Screw Extruders
- Research on Optimizing Parameters of Thermal Bonding Technique for PMMA Microfluidic Chip
- PPS News
- PPS News
- Seikei Kakou Abstracts
- Seikei-Kakou Abstracts