Search Results - "Bastos de Freitas Rachid, Felipe"

Combining Glimm’s Scheme and Operator Splitting for Simulating Constrained Flows in Porous Media by Martins-Costa, Maria Laura, Freitas Rachid, Felipe Bastos de, Gama, Rogério Pazetto S. da, Saldanha da Gama, Rogério M.

“…This paper studies constrained Newtonian fluid flows through porous media, accounting for the drag effect on the fluid, modeled using a Mixture Theory…”
Get full text

Modeling slack flow in hydraulic pipelines by means of a consistent thermodynamic theory by Assumpção, Alexandre Hastenreiter, Martins-Costa, Maria Laura, Freitas Rachid, Felipe Bastos de, Saldanha da Gama, Rogério Martins

“…This work presents a consistent thermodynamic model to describe cavitating flows in hydraulic pipelines. Although the model is capable to describe the vaporous…”
Get full text

Fluid transients in viscoelastic pipes via an internal variable constitutive theory by Andrade, Douglas Monteiro, de Freitas Rachid, Felipe Bastos, Tijsseling, Arris Sieno

“…•Pipe viscoelasticity is incorporated in a fluid transient analysis via an internal variable constitutive theory.•The model unconditionally satisfies the…”
Get full text

A new model for fluid transients in piping systems taking into account the fluid–structure interaction by Andrade, Douglas Monteiro, de Freitas Rachid, Felipe Bastos, Tijsseling, Arris Sieno

“…The present work extends a recently developed quasi-2D flow model for fluid transients in elastic pipes to accommodate fluid–structure interaction mechanisms…”
Get full text

An analysis of fluid–structure interaction coupling mechanisms in liquid-filled viscoelastic pipes subject to fast transients by Andrade, Douglas Monteiro, Bastos de Freitas Rachid, Felipe, Tijsseling, Arris Sieno

“…An extension of a recently developed quasi-2D flow model for fluid transients in viscoelastic pipes to handle fluid–structure interaction mechanisms is…”
Get full text

A thermodynamically consistent model for hydraulic transients in metallic pipes undergoing elasto-viscoplastic deformations by Monteiro Andrade, Douglas, Bastos de Freitas Rachid, Felipe, Tijsseling, Arris Sieno

“…This work presents an extension of the fluid transient analysis to include the elasto-viscoplastic behavior of the pipe material. A previously developed…”
Get full text

Numerical simulation of stratified-pattern two-phase flow in gas pipelines using a two-fluid model by Figueiredo, Aline Barbosa, Baptista, Renan Martins, Freitas Rachid, Felipe Bastos de, Bodstein, Gustavo Cesar Rachid

“…•A two-fluid model is discretized with the FCT method to simulate two-phase flows in gas pipelines.•Hyperbolicty is lost over a range of the Taitel and…”
Get full text

A suitability analysis of transient one-dimensional two-fluid numerical models for simulating two-phase gas-liquid flows based on benchmark problems by Sondermann, Carina Nogueira, Viggiano, Raphael, Rachid, Felipe Bastos de Freitas, Bodstein, Gustavo C.R.

“…•Two mathematical models that can represent two-phase gas-liquid flows in combination with three numerical methods (FCT, FORCE and ModFORCE) are used to…”
Get full text

Comparative analysis of unsteady friction models for pipe flows in light of the second law of thermodynamics by Smith Gonzaga Filho, Jaguarê, de Freitas Rachid, Felipe Bastos

“…An analysis of six distinct unsteady friction models for one-dimensional pipe flows was done aiming to verify not only the ability to correctly describe the…”
Get full text

Equations of state and hysteresis loops in isothermal cavitation by Hastenreiter Assumpção, Alexandre, Bastos de Freitas Rachid, Felipe, Martins-Costa, Maria Laura, Martins Saldanha da Gama, Rogério

“…This paper investigates the influence of the use of the cubic equation of state (EOS) in the isothermal cavitation of compressible fluids. To do so, a…”
Get full text

A hyperbolic mathematical modeling for describing the transition saturated/unsaturated in a rigid porous medium by Martins-Costa, Maria Laura, Alegre, Dario Monte, de Freitas Rachid, Felipe Bastos, Jardim, Luiz Guilherme C.M., Saldanha da Gama, Rogério M.

“…This work proposes a mathematical model to study the filling up of an unsaturated porous medium by a liquid identifying the transition from unsaturated to…”
Get full text

Modeling of release and absorption of gas in liquid–gas flows within a consistent thermodynamic framework by Borges da Silva, Agnaldo, Bastos de Freitas Rachid, Felipe

“…This work presents a consistent thermodynamic model to describe the gas release and gas absorption phenomena in homogeneous liquid–gas flows undergoing…”
Get full text

Numerical solution of fluid–structure interaction in piping systems by Glimm's method by Gomes da Rocha, Rogerio, Bastos de Freitas Rachid, Felipe

“…This work presents a numerical procedure for obtaining approximated solutions for one-dimensional fluid–structure interaction (FSI) models, which are used in…”
Get full text

An unconstrained mathematical description for conduction heat transfer problems with linear temperature-dependent thermal conductivity by Martins-Costa, Maria Laura, de Freitas Rachid, Felipe Bastos, Saldanha da Gama, Rogério M.

“…This work presents a systematic modeling for conduction heat transfer problems in which the thermal conductivity is assumed a linear function of the…”
Get full text

Numerical simulation of non-isothermal two-phase flow in pipelines using a two-fluid model by Sondermann, Carina Nogueira, Baptista, Renan Martins, Bastos de Freitas Rachid, Felipe, Bodstein, Gustavo Cesar Rachid

“…The analysis of two-phase flows through numerical simulations is a very useful tool to design and operate long pipelines. It is also important for monitoring…”
Get full text

Clausius-Duhem inequality for quasi-1D transient flows in variable cross-section area deformable pipes by Rachid, Felipe Bastos de Freitas

“…•The Clausius-Duhem inequality is derived for quasi-1D transient pipe flows.•It is derived by consistently applying the first law of thermodynamics.•It…”
Get full text

A versatile friction model for Newtonian liquids flowing under unsteady regimes in pipes by Andrade, Douglas Monteiro, de Freitas Rachid, Felipe Bastos

“…This work presents a quasi-two-dimensional unsteady friction model, with the longitudinal coordinate considered as an independent variable and the radial…”
Get full text

Numerical simulation of pig motion in gas and liquid pipelines using the Flux-Corrected Transport method by Patricio, Rodrigo Augusto Camara, Baptista, Renan Martins, Rachid, Felipe Bastos de Freitas, Bodstein, Gustavo C.R.

“…The transportation of fluids in long pipelines occurs very often in the oil and gas industries. To keep high efficiency and productivity in pipeline…”
Get full text

A straightforward strategy for leak localization in two-phase gas pipelines by Figueiredo, Aline Barbosa, Baptista, Renan Martins, Rachid, Felipe Bastos de Freitas, Bodstein, Gustavo Cesar Rachid

“…The leak localization (LL) functionality is an important piece of leak detection systems that continuously monitor the operation of pipelines in real-time…”
Get full text