Free surface reconstruction of opaque liquids in microgravity. part 1: Design and on-ground testing

2021 ◽  
Author(s):  
Á. Romero-Calvo ◽  
A.J. García-Salcedo ◽  
F. Garrone ◽  
I. Rivoalen ◽  
G. Cano-Gómez ◽  
...  
Keyword(s):  
Free Surface ◽  
Surface Reconstruction ◽  
Ground Testing

Molecular dynamics simulations of surface reconstruction at the edges of a crack in ruthenium aluminum

1994 ◽  
Vol 9 (3) ◽  
pp. 548-552 ◽  
Author(s):  
C.S. Becquart ◽  
P.C. Clapp ◽  
J.A. Rifkin
Keyword(s):  
Molecular Dynamics ◽  
Free Surface ◽  
Molecular Dynamics Simulations ◽  
Surface Reconstruction ◽  
Computer Simulations ◽  
Interatomic Potentials ◽  
Free Surfaces ◽  
Ductile Behavior ◽  
Dynamics Simulations

Using molecular dynamics computer simulations and interatomic potentials derived partly by Voter and Chen1 and Rifkin et al.,2 we studied the surface reconstruction taking place on free surfaces of arrays of RuAl. Surface reconstruction appears to be very important on {111} and {110} types of planes and almost nonexistent on {100} type of planes. Cracks oriented so that their crack planes were either {111} types or {110} types exhibit on their internal free surface important surface reconstruction. It is believed that this effect may have some contribution in the brittle versus ductile behavior of the crack.

scholarly journals Free Surface Reconstruction for Phase Accurate Irregular Wave Generation

2018 ◽  
Vol 6 (3) ◽  
pp. 105 ◽  
Author(s):  
Ankit Aggarwal ◽  
Csaba Pákozdi ◽  
Hans Bihs ◽  
Dag Myrhaug ◽  
Mayilvahanan Alagan Chella
Keyword(s):  
Free Surface ◽  
Surface Reconstruction ◽  
Deep Water ◽  
Time Domain ◽  
Present Approach ◽  
Surface Elevation ◽  
Irregular Waves ◽  
Free Surface Elevation ◽  
Irregular Wave ◽  
The Time Domain

The experimental wave paddle signal is unknown to the numerical modellers in many cases. This makes it quite challenging to numerically reproduce the time history of free surface elevation for irregular waves. In the present work, a numerical investigation is performed using a computational fluid dynamics (CFD) based model to validate and investigate a non-iterative free surface reconstruction technique for irregular waves. In the current approach, the free surface is reconstructed by spectrally composing the irregular wave train as a summation of the harmonic components coupled with the Dirichlet inlet boundary condition. The verification is performed by comparing the numerically reconstructed free surface elevation with theoretical input waves. The applicability of the present approach to generate irregular waves by reconstructing the free surface is investigated for different coastal and marine engineering problems. A numerical analysis is performed to validate the free surface reconstruction approach to generate breaking irregular waves over a submerged bar. The wave amplitudes, wave frequencies and wave phases are modelled with good accuracy in the time-domain during the higher-order energy transfers and complex processes like wave shoaling, wave breaking and wave decomposition. The present approach to generate irregular waves is also employed to model steep irregular waves in deep water. The free surface reconstruction method is able to simulate the irregular free surface profiles in deep water with low root mean square errors and high correlation coefficients. Furthermore, the irregular wave forces on a monopile are investigated in the time-domain. The amplitudes and phases of the force signal under irregular waves generated by using the current technique are modelled accurately in the time-domain. The proposed approach to numerically reproduce the free surface elevation in the time-domain provides promising and accurate results for all the benchmark cases.

Free surface reconstruction of opaque liquids in microgravity. Part 2: Drop tower campaign

2021 ◽  
Author(s):  
Á. Romero-Calvo ◽  
F. Garrone ◽  
A.J. García-Salcedo ◽  
I. Rivoalen ◽  
G. Cano-Gómez ◽  
...  
Keyword(s):  
Free Surface ◽  
Surface Reconstruction ◽  
Drop Tower

The Effects of Near Surface and Bulk Microstructure on Lithium Intercalation of Disordered, “Hard” Carbons

1997 ◽  
Vol 496 ◽  
Author(s):  
William R. Even ◽  
Lawrence W. Peng ◽  
Nancy Yang ◽  
Ronald Guidotti ◽  
Thomas Headley
Keyword(s):  
Free Surface ◽  
Surface Reconstruction ◽  
Pulse Width ◽  
Loss Rate ◽  
Average Power ◽  
Rate Capability ◽  
Irreversible Loss ◽  
Near Surface ◽  
Surface Ordering ◽  
Bulk Structure

ABSTRACTDisordered carbons were synthesized at 700°C from methacrylonitrile-divinylbenzene precursors. The disorder, even at the free surface, was confirmed with TAM. These powdered carbons were subjected to rapid surface heating by a pulsed infrared laser. While the bulk structure remained essentially unchanged, there was substantial surface reconstruction to a depth of 0.25μm after heating (5.9 W average power at 10Hz, 10 ns pulse width, 1064nm wavelength). The surface ordering appears similar to the bulk microstructure of carbons isothermally annealed at 2,200°C (i.e., turbostratic). Improvements were observed in first cycle irreversible loss, rate capability, and coulombic efficiencies of the reconstructed carbons, relative to the untreated carbon.

scholarly journals Liquid dynamics sloshing in cylindrical containers: A 3D free-surface reconstruction dataset

Data in Brief ◽  
2020 ◽  
Vol 33 ◽  
pp. 106546
Author(s):  
Alessia Simonini ◽  
Donato Fontanarosa ◽  
Maria Grazia De Giorgi ◽  
Maria Rosaria Vetrano
Keyword(s):  
Free Surface ◽  
Surface Reconstruction ◽  
Liquid Dynamics

scholarly journals Atlas-Free Surface Reconstruction of the Cortical Grey-White Interface in Infants

PLoS ONE ◽  
2011 ◽  
Vol 6 (11) ◽  
pp. e27128 ◽  
Author(s):  
François Leroy ◽  
Jean-François Mangin ◽  
François Rousseau ◽  
Hervé Glasel ◽  
L. Hertz-Pannier ◽  
...  
Keyword(s):  
Free Surface ◽  
Surface Reconstruction

On the role of tin underlays for the prevention of thermal grooving in thin gold films

1986 ◽  
Vol 44 ◽  
pp. 732-733
Author(s):  
Jin Young Kim ◽  
R. E. Hummel ◽  
R. T. DeHoff
Keyword(s):  
Thin Film ◽  
Free Surface ◽  
Grain Boundary ◽  
Beneficial Effect ◽  
Failure Mechanism ◽  
Failure Mechanisms ◽  
Distinct Advantage ◽  
Gold Films ◽  
Gold Thin Film

Gold thin film metallizations in microelectronic circuits have a distinct advantage over those consisting of aluminum because they are less susceptible to electromigration. When electromigration is no longer the principal failure mechanism, other failure mechanisms caused by d.c. stressing might become important. In gold thin-film metallizations, grain boundary grooving is the principal failure mechanism.Previous studies have shown that grain boundary grooving in gold films can be prevented by an indium underlay between the substrate and gold. The beneficial effect of the In/Au composite film is mainly due to roughening of the surface of the gold films, redistribution of indium on the gold films and formation of In2O3 on the free surface and along the grain boundaries of the gold films during air annealing.

Fermi-surface reconstruction close to a pressure-induced metal-insulator transition

2004 ◽  
Vol 114 ◽  
pp. 277-281 ◽  
Author(s):  
J. Wosnitza ◽  
J. Hagel ◽  
O. Stockert ◽  
C. Pfleiderer ◽  
J. A. Schlueter ◽  
...  
Keyword(s):  
Fermi Surface ◽  
Surface Reconstruction ◽  
Insulator Transition ◽  
Metal Insulator Transition ◽  
Metal Insulator ◽  
Fermi Surface Reconstruction
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