Abstract
The effect of superimposing elasticity on a viscoplastic fluid (elasto-viscoplastic fluid) is investigated through a linear combination of the simplified Phan-Thien Tanner (SPTT) model of viscoelasticity and Bingham model of viscoplastic fluid. The equation of motion is solved for the case of parallel steady flow in tubes of non-circular cross-sections. The effect of elasticity on the evolution of plug and stagnant zones, and rate of flow in terms of the Weissenberg number, a material parameter in the SPTT model, and the Bingham number is investigated. We find that elasticity tends to enhance the rate of flow for given viscoplastic conditions.
Original language | English |
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Publication status | Published - 2016 |
Event | ASME 2016 International Mechanical Engineering Congress and Exposition - Phoenix, United States Duration: Nov 11 2016 → Nov 17 2016 |
Conference
Conference | ASME 2016 International Mechanical Engineering Congress and Exposition |
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Abbreviated title | IMECE 2016 |
Country/Territory | United States |
City | Phoenix |
Period | 11/11/16 → 11/17/16 |