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Title: | Study of the oscillatory flow of a yield-stress fluid in a cylindrical pipe |
Author: | Alvariza Trinidad, Sebastián |
Director/Tutor: | Planet Latorre, Ramon Ortín, Jordi, 1959- |
Keywords: | Oscil·lacions Fluència Treballs de fi de grau Oscillations Yield stress Bachelor's theses |
Issue Date: | Jun-2023 |
Abstract: | During this work we studied the oscillatory pipe flow of a Carbopol mixture. The velocity profiles show the non-linearity of the shear stress and the shear rate relation. For low frequencies the viscosity is high and the flow is plug-like. On the contrary, for high frequencies the force made by the piston is high enough to lower the viscosity value and induce a viscous fluid behaviour, leading to a Poiseuille-like profile. We also studied the rheological properties of samples of different concentrations and estimated the value of the yield stress, the consistency index and the flow index fitting the flow ramps to a Herschel-Bulkley-type equation |
Note: | Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Curs: 2023, Tutors: Ramón Planet, Jordi Ortín |
URI: | http://hdl.handle.net/2445/200814 |
Appears in Collections: | Treballs Finals de Grau (TFG) - Física |
Files in This Item:
File | Description | Size | Format | |
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ALVARIZA TRINIDAD SEBASTIÁN_7934066.pdf | 877.18 kB | Adobe PDF | View/Open |
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