# Mechanisms of Cluster Formation in Force-Free Granular Gases

C. Salueña; L. Almazán; N. V. Brilliantov

Mathematical Modelling of Natural Phenomena (2011)

- Volume: 6, Issue: 4, page 175-190
- ISSN: 0973-5348

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topSalueña, C., Almazán, L., and Brilliantov, N. V.. "Mechanisms of Cluster Formation in Force-Free Granular Gases." Mathematical Modelling of Natural Phenomena 6.4 (2011): 175-190. <http://eudml.org/doc/222446>.

@article{Salueña2011,

abstract = {The evolution of a force-free granular gas with a constant restitution coefficient is
studied by means of granular hydrodynamics. We numerically solve the hydrodynamic
equations and analyze the mechanisms of cluster formation. According to our findings, the
presently accepted mode-enslaving mechanism may not be responsible for the latter
phenomenon. On the contrary, we observe that the cluster formation is mainly driven by
shock-waves, which spontaneously originate and develop in the system. This agrees with a
previously suggested mechanism of formation of density singularities in one-dimensional
granular gases.},

author = {Salueña, C., Almazán, L., Brilliantov, N. V.},

journal = {Mathematical Modelling of Natural Phenomena},

keywords = {granular gas; cluster instability; hydrodynamics; numerical simulations},

language = {eng},

month = {7},

number = {4},

pages = {175-190},

publisher = {EDP Sciences},

title = {Mechanisms of Cluster Formation in Force-Free Granular Gases},

url = {http://eudml.org/doc/222446},

volume = {6},

year = {2011},

}

TY - JOUR

AU - Salueña, C.

AU - Almazán, L.

AU - Brilliantov, N. V.

TI - Mechanisms of Cluster Formation in Force-Free Granular Gases

JO - Mathematical Modelling of Natural Phenomena

DA - 2011/7//

PB - EDP Sciences

VL - 6

IS - 4

SP - 175

EP - 190

AB - The evolution of a force-free granular gas with a constant restitution coefficient is
studied by means of granular hydrodynamics. We numerically solve the hydrodynamic
equations and analyze the mechanisms of cluster formation. According to our findings, the
presently accepted mode-enslaving mechanism may not be responsible for the latter
phenomenon. On the contrary, we observe that the cluster formation is mainly driven by
shock-waves, which spontaneously originate and develop in the system. This agrees with a
previously suggested mechanism of formation of density singularities in one-dimensional
granular gases.

LA - eng

KW - granular gas; cluster instability; hydrodynamics; numerical simulations

UR - http://eudml.org/doc/222446

ER -

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