Resonances of Newtonian fluids in elastomeric microtubes
Por:
Torres Rojas A.M., Pagonabarraga I., Corvera Poiré E.
Publicada:
1 dic 2017
Categoría:
Condensed matter physics
Resumen:
We analyze the dynamic behavior of Newtonian fluids in elastic tubes subject to pulsatile pressure gradients and show that the interplay between the viscosity of the fluid, the elasticity of the wall, and the characteristic size of the confining media gives rise to a rich phenomenology that includes resonances. We find that these resonances are relevant for small confining geometries with low Young's moduli, typical of elastomeric materials in microfluidics. These resonances disappear beyond a certain tube radius, a certain Young's modulus, and below a certain fluid viscosity. In order to guide potential experiments, we present results for mineral oil flowing through polydimethylsiloxane microtubes and find resonances of the order of few tens of kHz. © 2017 Author(s).
Filiaciones:
Torres Rojas A.M.:
Departamento de Física y Química Teórica, Facultad de Química, Universidad Nacional Autónoma de México, Mexico City, Mexico
Departamento de Física y Química Teórica, Facultad de Química, Universidad Nacional Autónoma de México, Mexico City, 04510, Mexico
Pagonabarraga I.:
Departament de Física de la Matèria Condensada, Universitat de Barcelona, Barcelona, Spain
Universitat de Barcelona Institute of Complex Systems (UBICS), Universitat de Barcelona, Barcelona, Spain
CECAM Centre Européen de Calcul Atomique et Moléculaire, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
Departament de Física de la Matèria Condensada, Universitat de Barcelona, Barcelona, 08028, Spain
Universitat de Barcelona Institute of Complex Systems (UBICS), Universitat de Barcelona, Barcelona, 08028, Spain
CECAM Centre Européen de Calcul Atomique et Moléculaire, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, CH-1015, Switzerland
Corvera Poiré E.:
Departament de Física de la Matèria Condensada, Universitat de Barcelona, Barcelona, Spain
Departamento de Física y Química Teórica, Facultad de Química, Universidad Nacional Autónoma de México, Mexico City, 04510, Mexico
Departament de Física de la Matèria Condensada, Universitat de Barcelona, Barcelona, 08028, Spain
Universitat de Barcelona Institute of Complex Systems (UBICS), Universitat de Barcelona, Barcelona, 08028, Spain
Departamento de Física y Química Teórica, Facultad de Química, Universidad Nacional Autónoma de México, Mexico City, Mexico
Universitat de Barcelona Institute of Complex Systems (UBICS), Universitat de Barcelona, Barcelona, Spain
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