Sökning: "kinetic equations"

Visar resultat 11 - 15 av 89 avhandlingar innehållade orden kinetic equations.

  1. 11. Developments in the theory of the Prigogine-Herman kinetic equation of vehicular traffic

    Författare :Alexandros Sopasakis; Partiella differentialekvationer; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Chapman-Enskog expansion; Traffic; Prigogine-Herman; Kinetic equation; Unstable flow;

    Sammanfattning : The nonlinear kinetic equation of Prigogine and Herman is examined in regards to existence and uniqueness of solutions. The solution exists and is unique in the Banach space of bounded continuous functions over a particular subspace Ω. LÄS MER

  3. 12. A surface approach to understanding the dissolution of fluorite type materials : Implications for mineral dissolution kinetic models

    Författare :José Ricardo Assunção Godinho; Sandra Piazolo; Andreas Lüttge; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; dissolution; topography; fluorite; surface; geokemi; Geochemistry;

    Sammanfattning : Traditional dissolution models are based in the analyses of bulk solution compositions and ignore the fact that different sites of a surface dissolve at different rates. Consequently, the variation of surface area and surface reactivity during dissolution are not considered for the calculation of the overall dissolution rate, which is expected to remain constant with time. LÄS MER

  4. 13. Some numerical and analytical methods for equations of wave propagation and kinetic theory

    Författare :Eva Mossberg; Alexander Bobylev; Giovanni Russo; Karlstads universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; wave propagation; finite difference metods high order methods; Landau-Fokker-Planck equation; Monte-Carlo simulations; Boltzmann equation; hard sphere model; eigenvalue problem; MATHEMATICS; MATEMATIK; Matematik; Mathematics;

    Sammanfattning : This thesis consists of two different parts, related to two different fields in mathematical physics: wave propagation and kinetic theory of gases. Various mathematical and computational problems for equations from these areas are treated. LÄS MER

  5. 14. Some numerical and analytical methods for equations of wave propagation and kinetic theory

    Författare :Eva Mossberg; Karlstads universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Matematik; Mathematics;

    Sammanfattning : .... LÄS MER

  7. 15. Some Problems in Kinetic Theory and Applications

    Författare :Åsa Windfäll; Alexander Bobylev; Giampiero Spiga; Karlstads universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Matematik; Mathematics;

    Sammanfattning : This thesis consists of four papers. the first is devoted to discrete velocity models, the second to hydrodynamic equation beyond Navier-Stokes level, the third to a multi-linear Maxwell model for economic or social dynamics and the fourth is devoted to a function related to the Riemann zeta-function. LÄS MER