Experimental Characterization of a Flow-through Pulsation Damper Regarding Pressure Pulsations and Vibrations

2016 ◽  
Vol 40 (1) ◽  
pp. 162-169 ◽  
Author(s):  
Andreas F. Koegler ◽  
Daniel Haselmann ◽  
Nicolas S. A. Alt ◽  
Eberhard Schluecker
Keyword(s):  
Experimental Characterization ◽  
Pressure Pulsations ◽  
Flow Through

Experimental characterization of single and two-phase flow through nickel foams

2009 ◽  
Vol 64 (19) ◽  
pp. 4186-4195 ◽  
Author(s):  
Odile Gerbaux ◽  
Thibaut Vercueil ◽  
Alain Memponteil ◽  
Bruno Bador
Keyword(s):  
Two Phase Flow ◽  
Phase Flow ◽  
Experimental Characterization ◽  
Two Phase ◽  
Nickel Foams ◽  
Flow Through

Experimental Characterization of Two-Phase Flow Through Valves Applied to Liquid-Assisted Gas-Lift

2020 ◽  
Vol 142 (6) ◽  
Author(s):  
Renato P. Coutinho ◽  
Paulo J. Waltrich ◽  
Wesley C. Williams ◽  
Parviz Mehdizadeh ◽  
Stuart Scott ◽  
...  
Keyword(s):  
Water Flow ◽  
Two Phase Flow ◽  
Numerical Study ◽  
Water Flow Rate ◽  
Phase Flow ◽  
Experimental Characterization ◽  
Two Phase ◽  
Flow Through ◽  
Gas Lift

Abstract Liquid-assisted gas-lift (LAGL) is a recently developed concept to unload wells using a gas–liquid fluid mixture. The success deployment of the LAGL technology is related to the behavior of two-phase flow through gas-lift valves. For this reason, this work presents an experimental and numerical study on two-phase flow through orifice gas-lift valves used in liquid-assisted gas-lift unloading. To the knowledge of the authors, there is no investigation in the literature on experimental characterization of two-phase flow through gas-lift valves. Experimental data are presented for methane-water flow through gas-lift valves with different orifice port sizes: 12.7 and 17.5 mm. The experiments were performed for pressures ranging from 1.00 to 9.00 MPa, gas flow rates from 0 to 4.71 m3/h, and water flow rate from 0 to 0.68 m3/min. The experimental results are compared to numerical models published in the literature for two-phase flow through restrictions and to commercial multiphase flow simulators. It is observed that some models developed for two-phase flow through restrictions could successfully characterize two-phase flow thorough gas-lift valves with errors lower than 10%. However, it is first necessary to experimentally determine the discharge coefficient (CD) for each gas-lift valve. The commercial flow simulators showed a similar performance as the models available in the literature.

scholarly journals Experimental characterization of water flow through smooth rectangular microchannels

2005 ◽  
Vol 17 (9) ◽  
pp. 098105 ◽  
Author(s):  
R. Baviere ◽  
F. Ayela ◽  
S. Le Person ◽  
M. Favre-Marinet
Keyword(s):  
Water Flow ◽  
Experimental Characterization ◽  
Rectangular Microchannels ◽  
Flow Through

Experimental Characterization of Pressure Loss Caused by Flow Through Foldcore Sandwich Structures

2017 ◽  
Author(s):  
Yves Klett ◽  
Carla Zeger ◽  
Peter Middendorf
Keyword(s):  
Cross Section ◽  
Pressure Loss ◽  
Fluid Transport ◽  
Mechanical Performance ◽  
Experimental Characterization ◽  
Large Cross Section ◽  
Flow Through ◽  
Folded Structures ◽  
Sandwich Core

Folded structures based on different tessellation types have been investigated as alternatives to conventional sandwich core materials like honeycombs and foams. Besides the mechanical performance offered by such foldcores, they feature some unique properties that can be used to integrate additional functionalities. One of these is the possibility to generate large cross-section channels within the sandwich core that can be used for gas and fluid transport. In this study, we present an experimental setup to measure pressure loss within foldcore sandwich panels, and compare results for seven different foldcore configurations.

Experimental Characterization of Aerosol Flow Through a Micro-Capillary

2010 ◽  
Author(s):  
Zakaria Mahmud ◽  
Justin M. Hoey ◽  
Artur Lutfurakhmanov ◽  
Jason Daugs ◽  
Orven F. Swenson ◽  
...  
Keyword(s):  
Coming Out ◽  
Experimental Validation ◽  
Direct Write ◽  
Particle Sizing ◽  
Experimental Characterization ◽  
Small Particles ◽  
Aerosol Flow ◽  
Geometric Convergence ◽  
Flow Through

Aerosol flow through a long and tapered micro-capillary (MC) for direct write (DW) technology is typically used with small particles of sizes ranging from 0.2 μm to 10 μm at velocities up to 100 m/s. Earlier research showed that the particles coming through a long MC experience Saffman force that moves the particles towards the center of the beam other than the geometric convergence (due to Stokes drag); thus creating a collimated aerosol beam. It was also established that the additional Saffman force becomes more effective with certain particle diameters and velocities. Therefore, for experimental validation, it is important to accurately measure the particle size distribution and velocities coming out of the long MC. However, the current sizing methods are incapable of measuring particles less than 5 μm due to optical limitations. The current paper presents results using a micro-shadowgraphy system from LaVision Inc. to characterize the flow field. A modification of the particle-sizing algorithm is proposed to measure particles of sub-micron sizes. The modified algorithm can be used to accurately size particles of 1μm diameter.

Experimental Characterization of the Reliability of 3-Terminal Dual-Damascene Copper Interconnect Trees

2002 ◽  
Vol 716 ◽  
Author(s):  
C. L. Gan ◽  
C. V. Thompson ◽  
K. L. Pey ◽  
W. K. Choi ◽  
F. Wei ◽  
...  
Keyword(s):  
Stress Conditions ◽  
Experimental Characterization ◽  
Contact Lines ◽  
Tree Structures ◽  
Similar Test ◽  
Dual Damascene ◽  
Copper Interconnect ◽  
Test Conditions

AbstractElectromigration experiments have been carried out on simple Cu dual-damascene interconnect tree structures consisting of straight via-to-via (or contact-to-contact) lines with an extra via in the middle of the line. As with Al-based interconnects, the reliability of a segment in this tree strongly depends on the stress conditions of the connected segment. Beyond this, there are important differences in the results obtained under similar test conditions for Al-based and Cu-based interconnect trees. These differences are thought to be associated with variations in the architectural schemes of the two metallizations. The absence of a conducting electromigrationresistant overlayer in Cu technology, and the possibility of liner rupture at stressed vias lead to significant differences in tree reliabilities in Cu compared to Al.

Experimental Characterization of Mechanical Behavior of Cord-Rubber Composites

1982 ◽  
Vol 10 (1) ◽  
pp. 37-54 ◽  
Author(s):  
M. Kumar ◽  
C. W. Bert
Keyword(s):  
Response Characteristic ◽  
Cord Compression ◽  
Complete Characterization ◽  
Strain Response ◽  
Strain Gages ◽  
Experimental Characterization ◽  
Rubber Composites ◽  
Stress Strain ◽  
Strain Data

Abstract Unidirectional cord-rubber specimens in the form of tensile coupons and sandwich beams were used. Using specimens with the cords oriented at 0°, 45°, and 90° to the loading direction and appropriate data reduction, we were able to obtain complete characterization for the in-plane stress-strain response of single-ply, unidirectional cord-rubber composites. All strains were measured by means of liquid mercury strain gages, for which the nonlinear strain response characteristic was obtained by calibration. Stress-strain data were obtained for the cases of both cord tension and cord compression. Materials investigated were aramid-rubber, polyester-rubber, and steel-rubber.

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