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Thermocapillary Effect in a Thermal Rheological Jet
| Content Provider | Scilit |
|---|---|
| Author | Tang, Zemei Hu, Wenrui |
| Copyright Year | 2006 |
| Description | The process of die swell in polymer jets is an important feature within polymer processing and can be explained through a study of its rheological effects. The existence of a thermocapillary effect, driven by the gradient of its surface tension, should be considered when examining a thermal jet that has a non-uniform temperature distribution on its free surface, as in various polymer processings. Both the rheological effect and thermocapillary effect on die swell can be studied numerically through a finite element method as used on a two-dimensional and unsteady model, in which a Coleman–Noll second-order fluid model is employed. The results show that the expanding angle depends on both the rheological property of the fluid and the pressure at the vessel exit. Although both the thermocapillary and the rheological effects contribute to the cross-section expansion of the fluid jet, the latter is more important in determining the expansion. |
| Related Links | http://dspace.imech.ac.cn/bitstream/311007/16774/1/ja439.pdf |
| ISSN | 03400204 |
| e-ISSN | 14374358 |
| DOI | 10.1515/jnetdy.2006.016 |
| Journal | Journal of Non-Equilibrium Thermodynamics |
| Issue Number | 4 |
| Volume Number | 31 |
| Language | English |
| Publisher | Walter de Gruyter GmbH |
| Publisher Date | 2006-01-01 |
| Access Restriction | Open |
| Subject Keyword | Journal: Journal of Non-Equilibrium Thermodynamics Journal of Non-equilibrium Thermodynamics Energy and Fuel Technology Rheological Effects Thermocapillary Effect |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry Physics and Astronomy |
