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Ondas gravitacionais em regime pós Newtoniano
(Universidade Estadual Paulista (Unesp), 2022-03-07)
Gravitational waves are one of the most important results predicted by General Relativity. As their name suggests, they are ripples - or perturbations - in the geometry of spacetime. However, these disturbances are small, ...
Visualization of viscoplastic fluid flow in an abrupt contraction using particle image velocimetry
(Universidade Tecnológica Federal do ParanáCuritibaBrasilPrograma de Pós-Graduação em Engenharia Mecânica e de MateriaisUTFPR, 2019-11-22)
The viscoplastic fluid flow of Carbopol solutions is investigated in the following experimental study, for laminar and turbulent regime through an abrupt contraction with an aspect ratio of β = 1:85. The pressure drop ...
A numerical study of two-particle settling in a thixotropic fluid using the immersed Boundary–Lattice Boltzmann method
(Universidade Tecnológica Federal do ParanáCuritibaBrasilPrograma de Pós-Graduação em Engenharia Mecânica e de MateriaisUTFPR, 2021-02-05)
The settling of multiple particles in non-Newtonian fluids has great industrial importance. During the drilling operation in the oil and gas exploration, cuttings need to be removed from the borehole. The task is accomplished ...
Escoamento particulado com fluido não newtoniano em canal vertical e fraturado
(Universidade Tecnológica Federal do ParanáCuritibaBrasilPrograma de Pós-Graduação em Engenharia Mecânica e de MateriaisUTFPR, 2022-03-28)
In oil and gas exploration operations, the loss of fluid circulation is one of the main problems that interfere in the well drilling process. The presence of fractures, frequent in the reservoirs, added to the pressure ...
A comparative analysis between Newtonian laminarturbulent transition and viscoelastic drag reducing turbulent flows employing the DNS approachAnalise comparativa entre escoamentos de fluidos newtonianos em transição turbulenta e escoamentos turbulentos de fluidos viscoelasticos com redução de arrasto os utilizando DNS
(Universidade Federal do Rio de JaneiroBrasilInstituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de EngenhariaPrograma de Pós-Graduação em Engenharia MecânicaUFRJ, 2021)
Investigação numérica do escoamento líquido-sólido de fluido viscoplástico em seção anular rotativa
(Universidade Tecnológica Federal do ParanáCuritibaBrasilPrograma de Pós-Graduação em Engenharia Mecânica e de MateriaisUTFPR, 2021-02-12)
The solid particles transport inside piping systems by the Non-Newtonian fluid flow occurs in several applications. Specific rheological properties of the fluid can be modified to improve the particle carrying capacity. ...
Avaliação experimental do reinício de escoamento de solução aquosa de Laponita® RD
(Universidade Tecnológica Federal do ParanáCuritibaBrasilPrograma de Pós-Graduação em Engenharia Mecânica e de MateriaisUTFPR, 2020-03-31)
During crude oil production, oil reservoirs can reach up to 7,000 meters of depth. The oil pressure and temperature in these conditions can reach up values of 100 MPa and 150 °C, respectively, while the seabed is approximately ...
Direct numerical simulation of spheroidal particle settling in viscoplastic fluid using Lattice-Boltzmann method
(Universidade Tecnológica Federal do ParanáCuritibaBrasilPrograma de Pós-Graduação em Engenharia Mecânica e de MateriaisUTFPR, 2020-09-18)
A numerical study of ellipsoidal particle settling in quiescent Newtonian and viscoplastic fluid is presented motivated by theoretical aspects and industrial applications, such as cuttings transport in oil drilling. As ...
Escolamento laminar de líquidos não-newtonianos em seções anulares: estudos de CFD e abordagem experimental
(Universidade Federal de UberlândiaBRPrograma de Pós-graduação em Engenharia QuímicaEngenhariasUFU, 2016)