An investigation on internal thermal flow of non-Newtonian fluid (Q1201673)
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scientific article; zbMATH DE number 98096
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | An investigation on internal thermal flow of non-Newtonian fluid |
scientific article; zbMATH DE number 98096 |
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An investigation on internal thermal flow of non-Newtonian fluid (English)
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17 January 1993
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Two flows occurring in injection molding are investigated numerically. The first situation is injection of a melt into a disk mold. Assuming cylindrical symmetry, a fully developed velocity field, and a time- dependent temperature field, and with some strong simplifications for the temperature dependence of the viscosity, the resulting equations are derived for a power law fluid, and the temperature equation is solved numerically, using operator splitting and implicit difference schemes. The second situation is steady flow in a circular tube prior to injection, which is treated similarly for an upper-convected Maxwell fluid, using this time an explicit difference scheme for the temperature equation. No further analysis of the problem is given. Some numerical results are presented.
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thermo-viscoelasticity
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injection molding
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power law fluid
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operator splitting
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implicit difference schemes
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upper-convected Maxwell fluid
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explicit difference scheme
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