Zobrazeno 1 - 10
of 16
pro vyhledávání: '"P. R. de Souza Mendes"'
Autor:
Paulo R. de Souza Mendes
Publikováno v:
Fluids, Vol 9, Iss 4, p 98 (2024)
In this work, we underscore the significance of selecting an appropriate scaling to derive dimensionless quantities that accurately reflect their dimensional counterparts, thereby enhancing the comprehension of the underlying physics. For the loss of
Externí odkaz:
https://doaj.org/article/e1177568e1b24ee1a89b9ae3c9efa344
Autor:
Priscilla R. Varges, Camila M. Costa, Bruno S. Fonseca, Mônica F. Naccache, Paulo R. de Souza Mendes
Publikováno v:
Fluids, Vol 4, Iss 1, p 3 (2019)
The influence of the solvent type on the rheological properties of Carbopol ® NF 980 dispersions in water and in water/glycerol solutions is investigated. The material formulation, preparation procedure, common experimental challenges and artifact s
Externí odkaz:
https://doaj.org/article/31dc7b8a35ef4357b425a13e16a2960a
Publikováno v:
Advances in Mechanical Engineering, Vol 7 (2015)
Externí odkaz:
https://doaj.org/article/92514f55a3024252a5c01f3abaf77b44
Autor:
P. R. de Souza Mendes, I.R. Siqueira
Publikováno v:
Journal of Non-Newtonian Fluid Mechanics. 265:92-98
Suspensions of particles with viscoplastic characteristics are often found both in nature and industrial applications. However, in contrast with the case of suspensions in Newtonian fluids, the dynamics of shear-induced particle migration in yield-st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ed571e0b73530d6d7baf3cc7503cd327
https://doi.org/10.1016/j.jnnfm.2019.02.002
https://doi.org/10.1016/j.jnnfm.2019.02.002
Autor:
Camila Moreira Costa, P. R. de Souza Mendes, Priscilla R. Varges, B. S. Fonseca, Mônica F. Naccache, H.A. Pinho
Publikováno v:
Journal of Non-Newtonian Fluid Mechanics. 261:123-135
We perform an experimental analysis of the exchange flow between an elasto-viscoplastic thixotropic material above a less dense Newtonian oil inside a vertical tube. This situation is usually found in cementing plug operations, performed in the oil i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::728442e7c7d706111f51b4eb58d6e0e7
https://doi.org/10.1016/j.jnnfm.2018.08.008
https://doi.org/10.1016/j.jnnfm.2018.08.008
Publikováno v:
Physics of Fluids. 33:073102
The rheological behavior of an emulsion is determined by microstructural changes caused by external loads. Some of these changes are irreversible due to the occurrence of the destabilization processes. Therefore, a deeper understanding of the system
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::966a12006f56e141120e8a934955076a
https://doi.org/10.1063/5.0053408
https://doi.org/10.1063/5.0053408
Publikováno v:
Journal of Non-Newtonian Fluid Mechanics. 234:178-187
Fundamental understanding of flow of suspensions is key in many different areas such as bioengineering, oil, food, pharmaceutical and cosmetic industries. Two important phenomena may occur in the flow of particle suspensions. The first is associated
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::81f382e1b4233d14dbc83d7a4d6c3117
https://doi.org/10.1016/j.jnnfm.2016.06.001
https://doi.org/10.1016/j.jnnfm.2016.06.001
Publikováno v:
Physics of Fluids. 32:123104
This paper examines pressure-driven tube flows of inelastic yield-stress materials with thixotropic effects. In contrast to previous works based on structural kinetic models, we employ a fluidity-based constitutive model that uses the material fluidi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::91de11220edd966ef7de16f64c09c1bc
https://doi.org/10.1063/5.0031991
https://doi.org/10.1063/5.0031991
Autor:
C. R. de Miranda, Mônica F. Naccache, P. R. de Souza Mendes, Priscilla R. Varges, B. S. Fonseca
Publikováno v:
Physics of Fluids. 32:083101
We present an experimental study of the flow of yield stress materials through annular abrupt expansions–contractions, to evaluate the flow invasion into the cavity formed in the larger cross section region. Steady inertialess flows of Carbopol® a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0fb34faf8ded2e87152c3b8d58c16c0b
https://doi.org/10.1063/5.0015400
https://doi.org/10.1063/5.0015400
Autor:
Andre Leibsohn Martins, P. E. Azevedo, Mônica F. Naccache, P. R. de Souza Mendes, Priscilla R. Varges, B. S. Fonseca
Publikováno v:
Physics of Fluids. 32:013105
We experimentally studied the viscous fingering instability considering a Newtonian oil displacing viscoelastic shear-thinning liquids and vice versa. The non-Newtonian liquids are aqueous solutions of polyacrylamide and xanthan gum, i.e., flexible a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9fe487994810618edf6deb1a0fe6f080
https://doi.org/10.1063/1.5133054
https://doi.org/10.1063/1.5133054