Investigation on impact behavior of FMLs under multiple impacts with the same total energy: Experimental characterization and numerical simulation

2019 ◽  
Vol 226 ◽  
pp. 111218 ◽  
Author(s):  
Lu Yao ◽  
Guangyong Sun ◽  
Wentao He ◽  
Xiangjian Meng ◽  
De Xie
Keyword(s):  
Numerical Simulation ◽  
Total Energy ◽  
Impact Behavior ◽  
Experimental Characterization ◽  
Multiple Impacts

Single-Nozzle Micropumps

2009 ◽  
Author(s):  
X. Y. Huang ◽  
S. S. Wang ◽  
C. Yang
Keyword(s):  
Numerical Simulation ◽  
Flow Direction ◽  
Low Frequency ◽  
Pressure Head ◽  
Acoustic Resonator ◽  
Planar Channel ◽  
Experimental Characterization ◽  
Valveless Micropump ◽  
Dry Adhesives ◽  
Piezoelectric Disk

We demonstrate a new design of valveless micropump with a single nozzle and driven by piezoelectric disk. The nozzle is formed by a planar channel with an acoustic resonator profile, and the pump is fabricated by lamination of layers made of polymethyl-methacrylate (PMMA) and dry adhesives. Both experimental characterization and numerical simulation show that pump works well at low frequency in terms of relatively high pressure head and flowrate. Moreover, the pumping flow direction can be altered by simply adding buffer areas at the inlet and outlet. The pump is suitable for microfluidic integrations.

Computer Simulation of a Transportation Package Impacting Concrete and Soil Targets

2004 ◽  
Author(s):  
S. N. Huang ◽  
S. S. Shiraga ◽  
L. M. Hay
Keyword(s):  
Numerical Simulation ◽  
Computer Simulation ◽  
Impact Test ◽  
Impact Behavior ◽  
Test Results ◽  
Hypothetical Accident ◽  
Simulation Results ◽  
Accident Conditions ◽  
The Impact

This paper compares transportation mockup cask impact test results onto real surfaces with FEA numerical simulation results. The impact test results are from a series of cask impact tests that were conducted by Sandia National Laboratories (Gonzales 1987). The Sandia tests were conducted with a half-scale instrumented cask mockup impacting an essentially unyielding surface, in-situ soil, concrete runways, and concrete highways. The cask numerical simulations with these same surfaces are conducted with ABAQUS/Explicit, Version 5.8, The results are then compared and evaluated to access the viability of using numerical simulation to predict the impact behavior of transportation casks under hypothetical accident conditions.

scholarly journals Numerical simulation and experimental characterization of the heat transfer in a PV/T air collector prototype

2021 ◽  
pp. 101209
Author(s):  
Mohamed Fterich ◽  
Houssam Chouikhi ◽  
Sadoth Sandoval-Torres ◽  
Hatem Bentaher ◽  
Ahmed Elloumi ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Numerical Simulation ◽  
Experimental Characterization

Experimental Characterization and Numerical Simulation of Plumes Above Thermal Sources: Transport of a Passive Contaminant

2010 ◽  
Author(s):  
Rene´ Devienne ◽  
Jean-Raymond Fontaine ◽  
Talel Maalej
Keyword(s):  
Numerical Simulation ◽  
Experimental Study ◽  
Heat Sources ◽  
Experimental Characterization ◽  
Tracer Gas ◽  
Industrial Ventilation ◽  
Analytical Formulae ◽  
Thermal Sources

Industrial ventilation problems are linked with plumes above heat sources. This paper proposes an experimental study of dynamic, thermal and concentration fields that develop from cylindrical complex or rectangular sources. The metrology allows the measurement of local velocities and temperatures but also of the concentration of a tracer gas (helium). The results are compared with the classical analytical formulae, more particularly in the proximal field and also to results issued from simulation.

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