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Просмотр Conference papers по дате публикации
Отображаемые элементы 1-20 из 66
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(1997 ASME Fluids Engineering Division Summer Meeting, June 22-26, 1997-06-22)The main objective of this paper is to present the results of the experimental investigation of a Zarea-type torsional velocity-meter. For this, a torsional meter was designed, built and tested in the laboratory. The current ...
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(DOI: 10.2514/6.1998-2560 Conference: 29th AIAA Fluid Dynamics Conference, At Albuquerque, NM, USA, Volume: 1, 1998)The generation and early evolution of boundary layer transitional instabilities, named Tollmien-Schlichting (T-S) waves, in airfoil cascade flows are studied. The energy exchange between the mean flow and the flow instabilities ...
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(Proceedings of FEDSM’98 1998 ASME Fluids Engineering Division Summer Meeting June 21-25, 1998, Washington, DC, 1998-06-21)The effects on the boundary layer receptivity in airfoil cascade flow caused by superposed disturbances are studied using an energetic approach. The separated terms in the Fluctuating Kinetic Energy (FKE) budget are ...
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(SPE Latin American and Caribbean Petroleum Engineering Conference, Caracas, Venezuela, 21–23 April 1999, 1999-04-21)Experiments are performed to evaluate the leakage vs. pressure drop, wear and fluid properties, in ball-and-seat valves used in pumping units for artificial oil production. The test facility is constructed to evaluate the ...
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(Conference: h International Congress of Numerical Methods in Engeering and Applied Science (CIMENICS 2000), At Puerto La Cruz, Venezuela, Volume: 5, 2000)A mathematical model and numerical simulation of the three-dimensional and transient metal arc-welding process is presented. The heat source is considered as spatially distributed following a centered Gaussian bell, while ...
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(Proceeding of ETCE/OMAE2000 Joint Conference Energy for the New Millenium February 14-17, 2000, New Orleans, LA, 2000-02-14)The study of the two-phase flow through the standing and traveling valves used in an oil artificial-lift pumping unit is presented. The investigation aimed to determine the effects the gaseous phase may cause on the pump ...
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(Proceeding of ETCE/OMAE2000 Joint Conference Energy for the New Millenium February 14-17, 2000, New Orleans, LA, 2000-02-14)The numerical simulation of the flow through a pilot valve used in the oil intermittent gas lift process is presented.The complexity of the non-isothermal compressible flow is modeled by the solution of the Navier-Stokes, ...
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(FEDSM2000 FORUM ON FLUID MEASURENMENT AND INTRUMENTATION BOSTON, MASSACHUSETTS, ON JUNE 11-15, 2000, 2000-06-11)The design and set up of a large-scale flowmeter calibration and test facility is presented. The facility was designed to handle flowmeters with diameters between 6” and 14”, flow rates up to 0.3 m3/s and to give results ...
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(FEDSM2000 FORUM ON FLUID MEASURENMENT AND INSTRUMENTATION BOSTON, MASSACHUSETTS, ON JUNE 11-15, 2000, 2000-06-11)The design and test of the distribution manifold for a large-scale flowmeter calibration facility is presented. The design was intended to have an air-free flow operation and a free-surface flow-like towards the downstream ...
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(FEDSM2000 FORUM ON FLUID MEASURENMENT AND INTRUMENTATION BOSTON, MASSACHUSETTS, ON JUNE 11-15, 2000, 2000-06-11)The design and test of a flow deflector gate used for controlling the flow deviation toward the primary tank in a flow-meter calibration facility is presented. The deflector gate is pneumatically controlled and permits the ...
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(Universidad Simón Bolívar Departamento de Mecánica (*) Departamento de Conversión de Energía, 2001)The numerical study and calculation of transient temperatures developing during the arc-welding process of 6063 T5 aluminum plates is presented. The mathematical model is based on the differential energy conservation ...
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(SPE International Thermal Operations and Heavy Oil Symposuim, Porlamar, Venezuela, 12–17 March 2001., 2001-03-12)The numerical simulation of a static T-type mixer for turbulent mixing of miscible liquids is reported. The simulation was carried out using CFX, a commercial computational fluid dynamic simulator. The effect of mixing ...
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(The Electrochemical Society, Inc., 2003-01)Safety is an indispensable feature for a battery particularly in large scale applications. In this respect, gel electrolytes are more attractive due to less possibility of electrolyte leakage and safer if abused. ...
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(INTERNATIONAL CONFERENCE ONHYDRAULICS OF DAMS AND RIVER STRUCTURES, TEHRAN, IRAN; 04/2004, 2004-04)In this paper, the 3-D CFD simulation of the free-surface flow approaching the intakes of Caruachi Powerhouse is presented. The aim of the investigation is to determine whether or not vortex structures are likely to ...
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(Proceedings of IMECE2004 2004 ASME International Mechanical Engineering Congress November 13-19, 2004, Anaheim, California, USA, 2004-11-13)New data of the experimental performance of a Gas-Liquid Cylindrical Cyclone (GLCC) separator are presented. The data were collected using a 2 3/4” (0.07m) ID GLCC model working with an air-glycerin mixture. The inlet ...
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(SPE Latin American and Caribbean Petroleum Engineering Conference, Rio de Janeiro, Brazil, 20 – 23 June 2005, 2005-06-20)The major objective of this work is to generate a mathematical model, allowing the prediction of mixture density, liquid holdup, the pressure gradient in the pipe and the real column size. This is useful for optimizing ...
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(CIMENICS MF-185-2006, 2006)The transient free surface flow within a 1:30 model of the intake (penstock) to Power House II of Guri Hydro-Power Plant (Venezuela) is studied. The geometry of the model includes a reservoir of 4.31 meters upstream the ...
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(Proceedings of FEDSM2006 2006 ASME Joint U.S. - European Fluids Engineering Summer Meeting July 17-20, Miami, FL, 2006-07-17)A Liquid-Liquid Cylindrical Cyclone separator (LLCC) is a device used in the petroleum industry to separate the oil-water mixture obtained from the well. The use of this device has not been widespread due to the lack of ...
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(Proceedings of FEDSM2007 2007 ASME/JSME Fluids Engineering Division Summer Meeting July 30-August 2, 2007, San Diego, California, USA, 2007-06-30)Most granular flows at environmental conditions are unsteady and exhibit a complex physical behavior. Dune formation and migration in the desert are controlled not only by the flow of saltating particles over the sand bed, ...
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(III INTERNATIONAL CONGRESS ON COMPUTATIONAL BIOENGINEERING M. Cerrolaza, H. Rodrigues, M. Doublaré, J. Ambrosio, M. Viceconti (Eds.) Isla de Margarita, Venezuela, September 24 to 26, 2007, 2007-09-24)In recent years, CFD has become an increasingly used tool in the design of blood-based devices. Particularly, the estimation of red blood cell damage (hemolysis) becomes an important challenge to CFD scientists since the ...
Отображаемые элементы 1-20 из 66
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