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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Il nuovo cimento della Società Italiana di Fisica 10 (1988), S. 1013-1029 
    ISSN: 0392-6737
    Keywords: Kinetic and transport theory
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Riassunto Nel presente lavoro si illustra un sistema di equazioni iperboliche non lineari di conservazione, che si incontra nello studio di un problema di evoluzione per una miscela di gas di particelle interagenti in presenza di soli effetti di rimozione. Soluzioni analitiche esplicite di tale sistema sono costruite e commentate su base sia matematica che fisica.
    Abstract: Резюме Рассматривается система нелинейных гиперболических уравнений сошранения, возникающих при исследовании проблемы эволюции смеси газов взаимодействующих частиц в присутствии зффектов удаления. Получаются точные аналитические решения для такой системы. Проводится обсуждение полученных результатов с математической и физической точек зрения
    Notes: Summary A system of nonlinear hyperbolic conservation equations, arising in the study of an evolution problem of a mixture of gases of interacting particles in the presence of only removal effects, is illustrated. Explicit analytical solutions to such system are obtained and commented on both mathematical and physical grounds.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Il nuovo cimento della Società Italiana di Fisica 10 (1988), S. 145-159 
    ISSN: 0392-6737
    Keywords: Kinetic and transport theory ; Statistical mechanics ; Function theory, analysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Riassunto Sulla base di appropriate ipotesi fisiche, concernenti le frequenze di collisione, le distribuzioni di probabilità di «scattering» e le condizioni iniziali, si perviene a costruire un sistema diN equazioni di conservazione a partire dal sistema di Boltzmann, tramite il quale resta formulato un problema non lineare di evoluzione per gliN gas di una miscela assegnata. Vengono discusse le restrizioni sia fisiche che matematiche connesse con la soluzione del sistema trovato per i due casi di sola rimozione, e, rispettivamente, di rimozione e «scattering», occorrente fra le differenti specie di particelle costituenti la miscela di gas considerata.
    Abstract: Резюме На основе соответствующих гипотез относительно частот соударений, распределений вероятности рассеяния и начальных условий выводится системаN уравнений сохранения, исходя из системы Больцмана, определяющей нелинейную проблему эволюции дляN газов заданной смеси. Затем обсуждаются физические и математические ограничения, связанные с решением для рассматриваемой системы, для двух случаев: только удаление и удаление и рассеяние различных типов частиц, которые входят в рассматриваемую смесь.
    Notes: Summary On the basis of appropriate hypotheses, concerning the collision frequencies, the scattering probability distributions and the initial conditions, a system ofN conservation equations is derived starting from the Boltzmann system governing a nonlinear evolution problem for theN gases of an assigned mixture. The physical and mathematical constraints connected with the solution of the system so obtained are then discussed for the two cases of only removal and, respectively, of both removal and scattering between the different species of particles, which the mixture considered consists of.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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