| Autor: |
Ak M. Mehmet, Gunasekaran Sundaram |
| Jazyk: |
angličtina |
| Rok vydání: |
2000 |
| Předmět: |
|
| Zdroj: |
Applied Rheology, Vol 10, Iss 6, Pp 274-279 (2000) |
| Druh dokumentu: |
article |
| ISSN: |
1617-8106 |
| DOI: |
10.1515/arh-2000-0017 |
| Popis: |
Lubricated squeezing flow (LSF) of a Herschel-Bulkley fluid between parallel disks under constant force was theoretically analyzed. An analytical expression for the fluid thickness as a function of time was obtained in terms of a hypergeometric function. The fluid thickness profiles in LSF were simulated for a range of each of the model parameters (n, K, τo). The solution obtained in this study reduces to the corresponding analytical equations previously derived for LSF of Newtonian and power-law fluids. The simulations for Herschel-Bulkley fluid were compared with the response of Newtonian and power-law fluids. The dependence of the limiting fluid thickness (i.e. H(t)/H0 at 180 s) on model parameters is presented. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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