Fluid Particle Flow
Mostrando 1-12 de 72 artigos, teses e dissertações.
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1. Experimental study on the self-suspending proppant-laden flow in a single fracture
Abstract The flow of proppant-laden fluid (PLF) in the fracture is a typical problem of solid-liquid two phase flow, and the transportation and deposition of proppants are essential to determine the flow conductivity of hydraulic fracturing. The self-suspending proppant with a water soluble surface coating is a newly presented supporting material and has gre
REM, Int. Eng. J.. Publicado em: 2018-04
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2. Development of a computational instrument using a lagrangian particle method for physics teaching in the areas of fluid dynamics and transport phenomena
Abstract Particle methods are an alternative to the traditional mesh Eulerian methods for solution of fluid dynamics and transport phenomena problems. The Lagrangian Meshless Smoothed Particle Hydrodynamics (SPH) method presents advantages compared to mesh methods as a better visualisation of the spatio-temporal evolution of the flow (and the fluid propertie
Rev. Bras. Ensino Fís.. Publicado em: 27/04/2017
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3. Maps of deformations in a cantilever beam using particle image velocimetry (PIV) and speckle patterns
PIV (particle image velocimetry) has been spreading in studies that use the movement of particles to monitor the displacement of an object or the flow of a fluid by means of velocity vectors using optical techniques and second order statistics. PIV is also known as laser speckle velocimetry when associated with speckle patterns. This technique has been used
Rem: Rev. Esc. Minas. Publicado em: 2015-09
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4. Application of Computational fluid dynamic in aluminum refining through pneumatic injection of powders
Magnesium removal process from molten aluminum using particles of silica sand was studied from a hydrodynamic point of view using computational fluid dynamics (CFD). The gas-liquid flow was modeled by a model of the Euler type for both gas and liquid phase transport. Newton´s law of motion was used to describe the subsurface motion of injected solid particl
Mat. Res.. Publicado em: 2014-12
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5. CFD and experimental investigation on the heat transfer characteristics of alumina nanofluids under the laminar flow regime
This study reports experimental and Computational Fluid Dynamics (CFD) investigations of the laminar convective heat transfer coefficient of Al2O3/water nanofluids in a circular tube under uniform and constant heat flux on the wall. Three different models including a constant physical properties single-phase (CP-SP) model, a variable physical properties sing
Braz. J. Chem. Eng.. Publicado em: 2014-06
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6. Simulação tridimensional de uma coluna de bolhas cilíndrica : análise em sistema bifásico por técnica de velocimetria por imagem de partícula (PIV), shadow imaging e simulação / Three-dimensional simulation of a cylindrical bubble column : analysis in biphase system by technique of particle image velocimetry (PIV), shadow imaging and simulation
This research aims to evaluate the numerical results from Computational Fluid Dynamics (CFD) simulations and experimental results obtained using Particle Image Velocimetry (PIV) and Shadow Imaging in a bubble column of 1m height, diameter of 14,5cm with a gas distributor with 5 holes of 1 mm diameter each one. The system studied was water-air. The study was
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/07/2012
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7. Experimentação física do escoamento gás-líquido em uma coluna de bolhas retangular utilizando a técnica PIV e a técnica de sombras SHADOW / Gas- liquid experimentation in a rectangular bubble column using PIV and Shadow techniques
Bubble columns are multiphase contact devices for mass and heat transfer, wich are intensively used in different industrial areas. Flow and turbulence in these equipments are induced by the bubble rise motion. The hydrodynamics and bubble behavior in a homogeneous bubbly flow regime was analyzed in a rectangular laboratory-scale bubble column (50 x 20 x 220
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/07/2012
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8. Study of various numerical aspects of 3D-SPH for simulation of the dam break problem
Recently, the Smoothed Particle Hydrodynamics (SPH) method has been utilized as an effective tool for capturing details of the fluid flows. The Lagrangian nature of the SPH method facilitates the modeling of the free surface flows. In the present article, different numerical features of 3D-SPH are probed to find a set of options that can be used to achieve a
J. Braz. Soc. Mech. Sci. & Eng.. Publicado em: 2012-12
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9. Investigação experimental e analítica do escoamento ao redor de cilindro circular com supressores de VIV. / Experimental and analytical investigation of the flow around circular cylinder with VIV suppressors.
The fluid flow around bluff bodies is one of the main problems in fluid mechanics. The investigations of this phenomenon are based on analytical, numerical and experimental techniques. Each technique presents advantages and disadvantages, being impossible the comprehensive characterization of the flow though only one technique for the majority of body geomet
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/09/2011
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10. Escoamento de fluidos complexos e transporte de partÃculas em geometrias irregulares. / Complex fluid flows and particle transport in irregular geometries.
In this work many types of incompressible laminar Newtonian and Non-Newtonian flows are studied. The interplay of these flows with complex geometries was investigated using computational modeling and numerical solution of the conservation of momentum and mass continuity equations. As a first step, the computational modeling of a network of pores was adopted
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/04/2011
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11. Estudo do processo de aglomeração de pectina em leito fluidizado : efeito sobre as propriedades físico-químicas / Study of the pectin agglomeration process : effect on physicochemical properties
The agglomeration of food powders is commonly used to produce porous granules with higher wettability and dispersability. The agglomeration process promotes the particles enlargement and reduction of fines and result in some benefits, including lower rates of particles elutriation and danger reduction in handling or inhalation. Fluid bed agglomeration is com
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/03/2011
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12. Statistical characterization of two-phase slug flow in a horizontal pipe
The present paper reports the results of an ongoing project aimed at providing statistical information on slugs in two-phase flow in a horizontal pipe. To this end, the flow was examined experimentally and numerically. On the experimental side, three non-intrusive optical techniques were combined and employed to determine the velocity field and bubble shape:
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2011