Finite depth Stokes’ first problem of thixotropic fluid
| Autor: | Wen-Wen Liu, Jie Peng, Ke-qin Zhu |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Thixotropy
Yield (engineering) Partial differential equation Materials science 010304 chemical physics Yield surface Applied Mathematics Mechanical Engineering Flow (psychology) Thermodynamics Mechanics 01 natural sciences Flow field 010305 fluids & plasmas Physics::Fluid Dynamics Mechanics of Materials 0103 physical sciences Newtonian fluid Stokes number |
| Zdroj: | Applied Mathematics and Mechanics. 37:59-74 |
| ISSN: | 1573-2754 0253-4827 |
| DOI: | 10.1007/s10483-016-2016-9 |
| Popis: | This paper presents a study of the finite depth Stokes’ first problem for a thixotropic layer. The yield behavior of the thixotropic fluid in this problem is investigated for the first time. The main physical features of this problem are discussed, including the flow field, the wall stress, and the depth of the yield region. It is shown that the yield region appears near the wall, and the yield surface moves from the wall into the flow region and moves back to the wall finally. In contrast to the solution of the Newtonian fluid, the velocity of the thixotropic layer generally does not increase with time monotonously during the start-up process. The classical solution of the Newtonian fluid can be recovered from our results in extreme cases. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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