The aim of this article is to describe the development of a mathematical model for the simulation of the flow of polymer melts inside internal mixers. The rheological behavior of the polymeric fluid is assumed to be described by the Carreau equation. The flow regime is considered to be non-isotherma
Analysis of the Influence of Rotor Design on the Stream Flow Conditions Within an Internal Mixer
β Scribed by Andreas Limper; Tom Wilhelmsmeyer
- Publisher
- John Wiley and Sons
- Year
- 2002
- Tongue
- English
- Weight
- 673 KB
- Volume
- 287
- Category
- Article
- ISSN
- 1438-7492
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β¦ Synopsis
Abstract
A flow visualisation apparatus is described which allows to compare different rotor designs to each other. In order to observe the distributive mixing effect, the stream flow and dispersive mixing effect is monitored by an indirect measurement of the power impact within the material. Assuming that the mixing process of an internal mixer is not continuous, a testing device was build to the scale of a 90 l kneader. In this device the mixing chamber and the rotor blade are unwound into the flat plane. With this testing device it is possible to carry out a systematic analysis of the influence of rotor design on the flow processes within an internal mixer in a fast and inexpensive way.
The test device.
magnified imageThe test device.
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