Results 81 to 90 of about 5,519,869 (368)

A Case‐Based Reasoning Approach to Model Manufacturing Constraints for Impact Extrusion

Advanced Engineering Materials, EarlyView.
A hybrid modeling approach is presented that combines constraint‐based process modeling and case‐based reasoning. The model formalizes manufacturing constraints and integrates simulation data to model complex manufacturing processes. The approach supports manufacturability analysis during product design through an adaptive modeling environment.
Kevin Herrmann, Eduard Ortlieb, Hendrik Wester, Paul Christoph Gembarski, Bernd‐Arno Behrens, Roland Lachmayer   +5 more
wiley   +1 more source

Assessing the Ecological Value: Monetizing Process Innovations in Tailored Forming

Advanced Engineering Materials, EarlyView.
This article introduces a method for evaluating the sustainability of innovations, even with limited data. The method is illustrated through an analysis of the “Tailored Forming” technology, which explores the impact of sustainability on economic value added.
Jonas Schneider, Jan Westing, Matthias Schmidt, Peter Nyhuis, Vivian Katharina Kuprat   +4 more
wiley   +1 more source

PRESSURE AND PRESSURE DERIVATIVE ANALYSIS FOR VERTICAL GAS AND OIL WELLS IN STRESS SENSITIVE HOMOGENEOUS AND NATURALLY FRACTURED FORMATIONS WITHOUT TYPE-CURVE MATCHING Analisis de la presión y derivada de presión para pozos verticales de gas y petróleo en formaciones homogéneas y naturalmente fracturadas sensibles a los esfuerzos

CT&F Ciencia, Tecnología & Futuro, 2007
Currently, rock mechanics plays an important role in the oil industry. Effects of reservoir subsidence, compaction and dilation are being taken into account in modern reservoir management of complex systems.
Freddy-Humberto Escobar, José-Humberto Cantillo, Matilde Montealegre-M   +2 more
doaj  

Experimental and Simulation Analysis of Breakthrough Capacity of Radial Flow Helium-hydrogen Separation Bed

Yuanzineng kexue jishu
Helium-hydrogen separation bed is an important part of tritium extraction system. In order to deeply study penetration performance of the radial flow bed and guide the structure design, the mathematical model of radial bed breakthrough capacity was ...
DING Weidong, ZAN Qin, YANG Hongguang, LIAN Xudong
doaj   +1 more source

Flow Measurements and Flow Analysis in the ExitRegion of a Radial Turbine [PDF]

International Journal of Rotating Machinery, 1996
Three‐dimensional flow measurements using LDV system were obtained in the exit region of a radial inflow turbine at an off‐design operating condition. The measurements reveal a complex flow pattern near the tip region at the rotor exit due to the interaction of the tip clearance flow.
D. M. Murugan, Widen Tabakoff, Awatef Hamed   +2 more
openaire   +2 more sources

Aircraft engine nozzle [PDF]

, 1980
A variable area exit nozzle arrangement for an aircraft engine was a substantially reduced length and weight which comprises a number of longitudinally movable radial vanes and a number of fixed radial vanes.
Latham, E. A., Sorensen, N. E.
core   +1 more source

Axial and Radial Investigation of Hydrodynamics in a Bubble Column;Influence of Fluids Flow Rates and Sparger Type [PDF]

, 2006
A detailed investigation of local hydrodynamics in a pilot plant bubble column has been performed using various techniques, exploring both axial and radial variations of the gas hold-up, bubble average diameter and frequency, surface area.
Billet, Anne-Marie, Chaumat, Hélène, Delmas, Henri   +2 more
core   +1 more source

Simulation of Inhomogeneous Refractive Index Fields Induced by Hot Tailored Forming Components

Advanced Engineering Materials, EarlyView.
This article presents a simulation model for simulating inhomogeneous refractive index fields (IRIF) in hot‐forged components, accounting for thermal influences and complex geometries. Through this simulation, a priori knowledge about the propagation of the IRIF can be obtained, allowing for the positioning of the component or an optical measurement ...
Pascal Kern, Lennart Hinz, Markus Kästner, Eduard Reithmeier   +3 more
wiley   +1 more source

DETERMINATION OF VERTICAL AND HORIZONTAL PERMEABILITIES FOR VERTICAL OIL AND GAS WELLS WITH PARTIAL COMPLETION AND PARTIAL PENETRATION USING PRESSURE AND PRESSURE DERIVATIVE PLOTS WITHOUT TYPE-CURVE MATCHING DETERMINACIÓN DE PERMEABILIDADES VERTICAL Y HORIZONTAL EN POZOS VERTICALES DE GAS Y PETRÓLEO, CON COMPLETAMIENTO Y PENETRACIÓN PARCIAL A PARTIR DE PLOTEOS DE PRESIÓN Y PRESIÓN DERIVADA, SIN AJUSTE TIPO CURVA

CT&F Ciencia, Tecnología & Futuro, 2005
it has been long recognized that in some reservoirs the flow does not follow the expected radial cylindrical pattern. Spherical flow may take place in systems with wells completed in thick reservoirs where a short completion interval is open to flow ...
Katherine Moncada, Djebbar Tiab, Freddy-Humberto Escobar, Matilde Montealegre, Abel Chacon, Renzon Zamora, Sandra-L. Nese   +6 more
doaj  

Dissolution Hotspots in Fractures

Geophysical Research Letters, 2021
The injection of reactive fluid into fractured reservoirs is relevant to many subsurface processes. During injection, fracture dissolution forms various patterns.
Ran Hu, Ting Wang, Zhibing Yang, Yang Xiao, Yi‐Feng Chen, Chuang‐Bing Zhou   +5 more
doaj   +1 more source