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Rheological effect on thermocapillary flow of a liquid film jet painted on a moving boundary |
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| Authors: | Hu?Wenrui? author-information" > author-information__contact u-icon-before" > mailto:wrhu@imech.ac.cn" title=" wrhu@imech.ac.cn" itemprop=" email" data-track=" click" data-track-action=" Email author" data-track-label=" " >Email author,Hui?W.?H. |
| Affiliation: | 1. National Microgravity Laboratory/CAS, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080 China; Department of Mathematics and Center for Scientific Computation, Hong Kong University of Science and Tech-nology, Hong Kong, China 2. Department of Mathematics and Center for Scientific Computation, Hong Kong University of Science and Tech-nology, Hong Kong, China |
| Abstract: | In the present paper, a liquid (or melt) film of relatively high temperature ejected from a vessel and painted on the moving solid film is analyzed by using the second-order fluid model of the non-Newtonian fluid. The thermocapillary flow driven by the temperature gradient on the free surface of a Newtonian liquid film was discussed before. The effect of rheological fluid on thermocapillary flow is considered in the present paper. The analysis is based on the approximations of lubrication theory and perturbation theory. The equation of liquid height and the process of thermal hydrodynamics of the non-Newtonian liquid film are obtained, and the case of weak effect of the rheological fluid is solved in detail. |
| Keywords: | die swell thermocapillary flow non-Newtonian fluid film jet |
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