Clustering instability in dissipative gases
WebAug 16, 2011 · Instead, the results suggest that the clustering instability of Goldhirsch and Zanetti in dissipative gases is the dominant mechanism. Subjects: Pattern Formation … WebA possible physical mechanism underlying this instability is proposed. A theoretical analysis, based on the Jenkins-Richman equations, as well as a numerical simulation of …
Clustering instability in dissipative gases
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WebPrevious experiments have revealed that shock waves driven through dissipative gases may become unstable, for example, in granular gases and in molecular gases undergoing strong relaxation effects. ... rates and rates for clustering in a convected fluid element with the same thermodynamic history ruled out the clustering instability of a ... WebA study of the gas dynamics of a dilute collection of the inelastically colliding hard spheres is presented. When diffusive processes are neglected the gas density blows up in a finite time. The blowup is the mathematical expression for one of the possible mechanisms for cluster formation in dissipative gases.
WebFeb 1, 2011 · The current interest is motivated in part by the “dissipative clustering” found in various particle-dynamics (“DEM”) simulations of granular systems. Since particle clustering may invalidate standard gas kinetic theory, it is pertinent to ask whether hydrodynamic models based on such theories may themselves exhibit clustering … Web41 minutes ago · The convective envelopes of solar-type stars and the convective cores of intermediate- and high-mass stars share boundaries with stable radiative zones. Through a host of processes we collectively refer to as “convective boundary mixing” (CBM), convection can drive efficient mixing in these nominally stable regions. In this …
WebAbstract. We consider the Boltzmann equation for inelastic particles on the line and prove some preliminary results on existence and uniqueness of the solutions. We also discuss some connections with another kinetic equation investigated by the same authors. Download to read the full article text. WebJun 4, 1998 · This paper uses a fluid‐mechanical model of a granular medium to calculate the hydrodynamic modes of a spatially uniform basic state. These modes are the granular analogs of the heat, sound, and shear modes of the standard fluid. Attention is focused on the possibility of an unstable mode that might result in the spontaneous development of …
WebEvolution and stability of shock waves in dissipative gases characterized by activated inelastic collisions Physical Review E, American Physical …
WebCyberstalking is the same but includes the methods of intimidation and harassment via information and communications technology. Cyberstalking consists of harassing and/or … field headingsWebTo investigate whether the instability observed was compatible with the clustering instability of dis-sipative gases first introduced by [10], we conducted a separate simulation where all the gas is initial-ized with an average speed of u = 7 and random directions. This velocity was chosen to correspond to the piston speed investigated … fieldhead house bd7 1lgWebThe Stress Tensor of a Dilute Granular Gas in Steady, Homogeneous, Rotational Shearing Flows. 14 October 2024. James T. Jenkins & Chao Zhang. ... I. Goldhirsch and G. Zanetti, Clustering instability in dissipative gases, Phys. … fieldhead hotel menuWebJul 1, 2003 · A gas of particles which collide inelastically if their impact velocity exceeds a certain value is investigated. In difference to common granular gases, cluster formation occurs only as a transient phenomenon. We calculate the decay of temperature due to inelastic collisions. In spite of the drastically reduced dissipation at low temperature ... grey paint with red undertonesWebJul 18, 2011 · 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 … fieldhead lane batleyWebA mode is the means of communicating, i.e. the medium through which communication is processed. There are three modes of communication: Interpretive Communication, … grey paisley comforter setWebMar 15, 1993 · Clustering instability in dissipative gases I. Goldhirsch and G. Zanetti Phys. Rev. Lett. 70, 1619 – Published 15 March 1993 More PDF Export Citation Abstract It is shown that a gas composed of inelastically colliding particles is unstable to the … fieldhead lane birstall