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TFG_ FIS_Diaz_Piola_Lautaro.pdf (450.08 KB)

Tipus de document

Treball de fi de grau

Data de publicació

2016-06

Llicència de publicació

cc-by-nc-nd (c) Díaz, 2016
Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/102850

Deformation of uid fronts in a gap-modulated Hele-Shaw cell

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Resum

We have studied experimentally the morphology and dynamics of stable oil-air displacements in a gap-modulated Hele-Shaw cell, in the case where the modulation is persistent in the direction of front advancement. Local changes in capillary pressure result in non-local deformations of the two-phase fronts, which have been recorded with a high speed camera and digitized in space and time. The front morphologies observed experimentally in the steady state are in excellent agreement with the predictions of a linear theory, particularly for low intensities of the gap modulation and for both positive and negative modulations. We have also studied the spatio-temporal dynamics of deformation of a nearly initially at front towards the steady state. In the presence of a positive modulation of the gap thickness, the difference in height between the front tip at the central modulation of the cell and its lateral tails accelerates in time

Descripció

Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Curs: 2016, Tutors: Jordi Ortín i Ramon Planet

Matèries

Dinàmica de fluids, Treballs de fi de grau

Matèries (anglès)

Fluid dynamics, Bachelor's theses

Citació

Col·leccions

Treballs Finals de Grau (TFG) - Física

Citació

DÍAZ PIOLA, Lautaro. Deformation of  uid fronts in a gap-modulated Hele-Shaw cell. [consulta: 25 de febrer de 2026]. [Disponible a: https://hdl.handle.net/2445/102850]

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