An initial-boundary value problem for the one-dimensional system of Boltzmann moment equations in an odd-order approximation

1992 ◽  
Vol 32 (5) ◽  
pp. 889-894
Author(s):  
A. Sakabekov
Keyword(s):  
Boundary Value Problem ◽  
Order Approximation ◽  
Initial Boundary ◽  
Initial Boundary Value Problem ◽  
Dimensional System ◽  
Moment Equations ◽  
One Dimensional ◽  
Odd Order ◽  
The One ◽  
Initial Boundary Value

scholarly journals An Initial Boundary Value Problem for the Zakharov Equation

2013 ◽  
Vol 2013 ◽  
pp. 1-10
Author(s):  
Quankang Yang ◽  
Charles Bu
Keyword(s):  
Boundary Value Problem ◽  
Existence And Uniqueness ◽  
Boundary Value ◽  
Initial Boundary ◽  
Initial Boundary Value Problem ◽  
Zakharov Equation ◽  
One Dimensional ◽  
Global Strong Solution ◽  
The One ◽  
Initial Boundary Value

This paper studies an inhomogeneous initial boundary value problem for the one-dimensional Zakharov equation. Existence and uniqueness of the global strong solution are proved by Galerkin’s method and integral estimates.

scholarly journals An initial-boundary value problem for Boltzmann’s non-stationary nonlinear one-dimensional four-moment system of equations

2020 ◽  
pp. 91-95
Author(s):  
G. Suleimenov
Keyword(s):  
Boundary Value ◽  
Initial Boundary ◽  
Initial Boundary Value Problem ◽  
Moment Equations ◽  
One Dimensional ◽  
The Moment ◽  
Initial Boundary Value ◽  
The Given ◽  
Dynamic Variables ◽  
Microscopic Distribution

In this article, the set of boundary conditions is defined for first and boundary value problems for the second approximation of Boltzmann’s system of one-dimensional nonlinear moment equations and their logic. For the second approximation of Boltzmann’s one-dimensional non-stationary nonlinear moment equations, which satisfies the Maxwell-Auzhan boundary condition, the theorem for the first boundary problem is considered and by proving this theorem, it is proved that there are only solutions to the given problems. It is known that in many problems of gas dynamics there is no need to describe the complete state of the gas by the function of microscopic distribution of molecules. Therefore, it is better to look for an easier way to describe the gas using macroscopic gas – dynamic variables (density, hydrodynamic average velocity, temperature) are determined in this rotations by the moments of the microscopic distribution function of the molecules, the author faced with the problem of analyzing the different moments of the Boltzmann equation. By studying the moment equations, the author obtained some information about the function of the microscopic distribution of molecules and the convergence of the moment method.

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