Sentences with phrase «granular gases»
The paper, «Increasing temperature of cooling granular gases» published in the journal Nature Communications is available here: https://www.nature.com/articles/s41467-017-02803-7
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The international group of scientists has provided a vital clue on how granular gases function and demonstrate this mysterious quality in a paper published in the journal, Nature Communications, where they have built a solid mathematical foundation of the phenomenon.
«Surprisingly, this is not always true for granular gases.»
Granular gases are one of the few examples where this scientific mystery can be observed.
«When «colder» means «hotter»: Explaining the increasing temperature of cooling granular gases.»
«In isolated granular gases without external energy input, the kinetic energy of the particles constantly decreases due to the collisions, which is why the granular temperature also decreases», explains Prof. Dr. Thorsten Pöschel from the Chair for Multiscale Simulation of Particulate Systems at FAU.
Granular gases are systems that contain macroscopic particles in low density.
The scientists» findings could help to increase the understanding of the basic properties of granular gases such as soot agglomeration in flue gases on Earth or in astrophysical phenomena such as cosmic dust in planetary rings in space.
Pöschel explains: «By using a new system of kinetic equations and the relevant scaling methods, we were able to depict the dynamics of particle aggregations in granular gases reliably for the first time.
«Law of particle dynamics of granular gases: Increasing temps in cooling systems.»
A challenging topic of research has been the application of classical thermodynamics to out of equilibrium systems, e.g., granular gas and materials, the construction of phase diagrams in hard sphere packing in 3D, and plasma.
A Leicester mathematician has developed a theory to explain a peculiar phenomenon which can be observed both on Earth and in space — «heating by cooling», where the temperature of a granular gas increases while the total energy drops down.
Not exact matches
But its width varied with the average speed of a particle — the granular equivalent of temperature in gases.