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 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

Large cross-section blast chamber: design and experimental characterization

2021 ◽  
Author(s):  
Ricardo Mejia-Alvarez ◽  
Joseph Augustus Kerwin ◽  
Suhas Jeevan Vidhate ◽  
Paul Sandherr ◽  
Evan Patton ◽  
...  
Keyword(s):  
Cross Section ◽  
Experimental Characterization ◽  
Large Cross Section ◽  
Chamber Design

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

Mechanical Gypsum Wall System Performance

2020 ◽  
Vol 400 ◽  
pp. 117-122
Author(s):  
João M.P.Q. Delgado
Keyword(s):  
Compressive Strength ◽  
System Performance ◽  
Mechanical Performance ◽  
Surface Hardness ◽  
Water Repellent ◽  
Experimental Characterization ◽  
Strength Tests ◽  
Tensile Adhesion ◽  
Wall System

This paper has the aim to evaluate the mechanical performance of gypsum walls. It was carried out a laboratory experimental characterization of the gypsum materials properties and different waterproofing contents, which determine their mechanical behaviour, by flexural and compressive strength tests, tensile adhesion and surface hardness. The wall system performance was also evaluated in terms of its water-tightness.The results showed that the samples with lower water repellent additive content present higher compressive strength values and the gypsum walls tested achieved the minimum level of performance (Level M).

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.

Characterization of high-pressure cavitating flow through a thick orifice plate in a pipe of constant cross section

2017 ◽  
Vol 114 ◽  
pp. 229-240 ◽  
Author(s):  
Behrouz Ebrahimi ◽  
Guoliang He ◽  
Yingjie Tang ◽  
Matthew Franchek ◽  
Dong Liu ◽  
...  
Keyword(s):  
High Pressure ◽  
Cross Section ◽  
Cavitating Flow ◽  
Orifice Plate ◽  
Constant Cross Section ◽  
Flow Through
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