Abstract
Flow of a viscoelastic fluid in round pipes is analyzed for the case where the pressure gradient is oscillatory with varying amplitude. The fluid is modelled according to Phan-Thien-Tanner's constitutive equation. The analysis is carried out by using the perturbation method in which a material parameter is considered small. Velocity field and other kinematic and dynamic variables are evaluated for a range of relevant parameters. The results are compared with the base Newtonian and linear Maxwell flows. The effect of the PTT model in these type of flows is highlighted.
| Original language | English |
|---|---|
| Article number | IMECE2004-59693 |
| Pages (from-to) | 829-833 |
| Number of pages | 5 |
| Journal | American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED |
| Volume | 260 |
| DOIs | |
| Publication status | Published - 2004 |
All Science Journal Classification (ASJC) codes
- Engineering(all)
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Cite this
Letelier, M. F., Madariaga, N., & Siginer, D. A. (2004). Unsteady flow of a non-linear viscoelastic fluid in pipes. American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED, 260, 829-833. [IMECE2004-59693]. https://doi.org/10.1115/IMECE2004-59693