Determinación de la viscosidad de fluidos newtonianos y no newtonianos (una revisión del viscosímetro de Couette)
2010; Volume: 4; Issue: 1 Linguagem: Inglês
ISSN
1870-9095
AutoresArturo F. Méndez-Sánchez, Leonor Pérez-Trejo, Aurelio Mercado, Escuela Superior de Física,
Tópico(s)Rheology and Fluid Dynamics Studies
ResumoNewtonian viscosity is studied in the theoretical and laboratory courses of physics of fluids in natural sciences and engineering. Because of the increasing use of Non-Newtonian fluids is necessary to include them in these courses. To driving experiences that enable to the students to distinguish between Newtonian and non-Newtonian fluids will allow to improve their knowledge about fluids. The purpose of this work is to give a didactic tool to differentiate between Newtonian and Non-Newtonian fluids by using their flow curves. In addition, the details of a concentric cylinders viscometer (Couette Viscometer) construction of low cost are shown, the which one can be manufactured by the students. Finally, the characterization of two commercial fluids is included.
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