Results 61 to 70 of about 187 (134)

Effect of the Radial Pressure Gradient on the Secondary Flow Generated in an Annular Turbine Cascade [PDF]

open access: yesInternational Journal of Rotating Machinery, 2012
This paper introduces an investigation of the effect of radial pressure gradient on the secondary flow generated in turbine cascades. Laboratory measurements were performed using an annular sector cascade which allowed the investigation using relatively small number of blades.
openaire   +2 more sources

PRESSURE AND PRESSURE DERIVATIVE ANALYSIS FOR INJECTION TESTS WITH VARIABLE TEMPERATURE WITHOUT TYPE-CURVE MATCHING ANÁLISIS DE PRESIÓN Y DERIVADA DE PRESIÓN EN PRUEBAS DE INYECCIÓN CON TEMPERATURA VARIABLE SIN EMPLEAR CURVAS TIPO

open access: yesCT&F Ciencia, Tecnología & Futuro, 2008
The analysis of injection tests under nonisothermic conditions is important for the accurate estimation of the reservoir permeability and the well's skin factor; since previously an isothermical system was assumed without taking into account a moving ...
Freddy-Humberto Escobar   +2 more
doaj  

PRESSURE AND PRESSURE DERIVATE ANALYSIS FOR A WELL IN A RADIAL COMPOSITE RESERVOIR WITH A NON-NEWTONIAN/NEWTONIAN INTERFACE

open access: yesCT&F Ciencia, Tecnología & Futuro, 2010
In many activities of the oil industry, engineers have to deal with completion and stimulation treatment fluids such as polymer solutions and some heavy crude oils which obey a non-Newtonian power-law behavior.
Freddy-Humberto Escobar   +2 more
doaj  

Investigation of Radial Swirler Effect on Flow Pattern inside a Gas Turbine Combustor

open access: yesModern Applied Science, 2009
Une étude a été menée pour étudier le schéma d'écoulement dans une chambre de combustion de turbine à gaz en utilisant des approches numériques et expérimentales. La fonction principale d'une chambre de combustion est de brûler le mélange air-carburant puis d'admettre les gaz brûlés à haute énergie, avec une température uniforme et limitée, pour ...
Yehia A. Eldrainy   +2 more
openaire   +3 more sources

PRESSURE AND PRESSURE DERIVATIVE TRANSIENT ANALYSIS WITHOUT TYPE-CURVE MATCHING FOR ELONGATED RESERVOIRS WITH CHANGES IN FACIES OR WIDTH

open access: yesCT&F Ciencia, Tecnología & Futuro, 2010
Due to geologic and tectonic events many reservoirs have an elongated geometry in which dual-linear and single-linear flow regimes may be developed.
Freddy-Humberto Escobar   +2 more
doaj  

CONVENTIONAL PRESSURE ANALYSIS FOR NATURALLY FRACTURED RESERVOIRS WITH TRANSITION PERIOD BEFORE AND AFTER THE RADIAL FLOW REGIME

open access: yesCT&F Ciencia, Tecnología & Futuro, 2009
It is expected for naturally occurring formations that the transition period of flow from fissures to matrix takes place during the radial flow regime. However, depending upon the value of the interporosity flow parameter, this transition period can show
Freddy-Humberto Escobar   +2 more
doaj  

Obtención del mejor punto de conexión de parques fotovoltaicos en redes de distribución radiales

open access: yesRevista Científica de Ingeniería Energética, 2022
El uso de las fuentes renovables de energía se ha incrementado exponencialmente a nivel mundial. Cuba ha implementado un plan hasta el 2030 donde las fuentes renovables juegan un papel fundamental dentro de la matriz energética nacional.
Urbano J. Pedraza Ferreira   +4 more
doaj  

Simultaneous effects of radial magnetic field and wall properties on peristaltic flow of Carreau-Yasuda fluid in curved flow configuration

open access: yesAIP Advances, 2015
The objective of present article is to address the magnetohydrodynamic (MHD) peristaltic flow of Carreau-Yasuda fluid in a curved geometry. The channel boundaries satisfy wall slip and compliant properties. The fluid is electrically conducting through an applied magnetic field in the radial direction. Heat transfer is also studied.
Tasawar Hayat   +2 more
openaire   +3 more sources

EHA2024 Hybrid Congress

open access: yes
HemaSphere, Volume 8, Issue S1, June 2024.
wiley   +1 more source

Modelo de flujo bifásico para predecir la eficiencia de separación natural en fondo de pozo Two-phase model for predicting downhole natural separation efficiency

open access: yesRevista Técnica de la Facultad de Ingeniería, 2007
Basado sobre la necesidad en determinar que cantidad de gas libre puede esperarse a la entrada de la bomba, este articulo propone una aproximación teórica la cual permite predecir la eficiencia de separación natural en el fondo del pozo.
Richard Márquez, Mauricio Prado
doaj  

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