Water cluster fragmentation probed by pickup experiments

2016 ◽  
Vol 145 (10) ◽  
pp. 104304 ◽  
Author(s):  
Chuanfu Huang ◽  
Vitaly V. Kresin ◽  
Andriy Pysanenko ◽  
Michal Fárník
Keyword(s):  
Water Cluster ◽  
Cluster Fragmentation

scholarly journals Highly Charged Ion - Induced Water Cluster Fragmentation

2012 ◽  
Vol 388 (10) ◽  
pp. 102053
Author(s):  
R Maisonny ◽  
M Capron ◽  
E Lattouf ◽  
A Lawicki ◽  
S Maclot ◽  
...  
Keyword(s):  
Water Cluster ◽  
Cluster Fragmentation ◽  
Highly Charged Ion

Extensive water cluster fragmentation after low energy electron ionization

2014 ◽  
Vol 612 ◽  
pp. 256-261 ◽  
Author(s):  
Jozef Lengyel ◽  
Andriy Pysanenko ◽  
Viktoriya Poterya ◽  
Jaroslav Kočišek ◽  
Michal Fárník
Keyword(s):  
Water Cluster ◽  
Electron Ionization ◽  
Low Energy ◽  
Energy Electron ◽  
Low Energy Electron ◽  
Cluster Fragmentation

scholarly journals On the scaling of fragmentation and energy dissipation in collisions of dust aggregates

2021 ◽  
Vol 23 (2) ◽  
Author(s):  
Philipp Umstätter ◽  
Herbert M. Urbassek
Keyword(s):  
Energy Dissipation ◽  
Collision Energy ◽  
Velocity Range ◽  
Collision Velocity ◽  
Granular Mechanics ◽  
Extra Factor ◽  
Cluster Fragmentation ◽  
Silica Clusters ◽  
Large Clusters ◽  
Small Clusters

Abstract Fragmentation of granular clusters may be studied by experiments and by granular mechanics simulation. When comparing results, it is often assumed that results can be compared when scaled to the same value of $$E/E_{\mathrm{sep}}$$ E / E sep , where E denotes the collision energy and $$E_{\mathrm{sep}}$$ E sep is the energy needed to break every contact in the granular clusters. The ratio $$E/E_{\mathrm{sep}}\propto v^2$$ E / E sep ∝ v 2 depends on the collision velocity v but not on the number of grains per cluster, N. We test this hypothesis using granular-mechanics simulations on silica clusters containing a few thousand grains in the velocity range where fragmentation starts. We find that a good parameter to compare different systems is given by $$E/(N^{\alpha }E_{\mathrm{sep}})$$ E / ( N α E sep ) , where $$\alpha \sim 2/3$$ α ∼ 2 / 3 . The occurrence of the extra factor $$N^{\alpha }$$ N α is caused by energy dissipation during the collision such that large clusters request a higher impact energy for reaching the same level of fragmentation than small clusters. Energy is dissipated during the collision mainly by normal and tangential (sliding) forces between grains. For large values of the viscoelastic friction parameter, we find smaller cluster fragmentation, since fragment velocities are smaller and allow for fragment recombination. Graphic abstract

scholarly journals Water-cluster distribution with respect to pressure and temperature in the gas phase

1993 ◽  
Vol 48 (5) ◽  
pp. 3764-3770 ◽  
Author(s):  
Byung Jin Mhin ◽  
Sang Joo Lee ◽  
Kwang S. Kim
Keyword(s):  
Gas Phase ◽  
Water Cluster ◽  
Cluster Distribution
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