Investigation of Nondissipative Discontinuity Structures for Equations of Micropolar Magnetoelastic Medium and Development of a General Approach to the Numerical Solution of Evolutionary Partial Differential Equations

被引:0
作者
Bakholdin, I. B. [1 ]
机构
[1] Russian Acad Sci, Keldysh Inst Appl Math, Moscow 125047, Russia
关键词
micropolar medium; solitary waves; discontinuity structures; finite difference methods;
D O I
10.1134/S0965542524701926
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
Numerical solutions to magnetoelasticity equations are considered. A numerical scheme based on central differences for spatial derivatives and the fourth-order Runge-Kutta method for time derivatives is used. The initial data is a solitary wave and a smoothed step (Riemann problem). The study is carried out beginning with simpler equations and continues for more complex ones. New types of discontinuity structures are found, and the conditions for the correctness of the equations are investigated.
引用
收藏
页码:359 / 371
页数:13
相关论文
共 9 条
[1]  
Bakholdin I., 2004, Non-dissipative_discontinuities_in_continuum_mechanics
[2]   Analysis of Two-Fluid Plasma in the Electromagnetic Hydrodynamics Approximation and Discontinuous Structures in Their Solutions [J].
Bakholdin, I. B. .
COMPUTATIONAL MATHEMATICS AND MATHEMATICAL PHYSICS, 2021, 61 (03) :436-452
[3]   Equations Describing Waves in Tubes with Elastic Walls and Numerical Methods with Low Scheme Dissipation [J].
Bakholdin, I. B. .
COMPUTATIONAL MATHEMATICS AND MATHEMATICAL PHYSICS, 2020, 60 (07) :1185-1198
[4]   Instability of supersonic solitary waves in a generalized elastic electrically conductive medium [J].
Erofeev, V. I. ;
Il'ichev, A. T. .
CONTINUUM MECHANICS AND THERMODYNAMICS, 2023, 35 (06) :2313-2323
[5]  
[Ерофеев В.И. Erofeev V.I.], 2019, [Проблемы прочности и пластичности, Problemy prochnosti i plastichnosti], V81, P402
[6]   Spatially localized nonlinear magnetoelastic waves in an electrically conductive micropolar medium [J].
Erofeev, Vladimir I. ;
Malkhanov, Alexey O. .
ZAMM-ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND MECHANIK, 2023, 103 (04)
[7]  
Kulikovskii A.G., 1995, Nonlinear Waves in Elastic Media
[8]  
KULIKOVSKII AG, 1966, PMM-J APPL MATH MEC+, V30, P180
[9]  
Vinogradova Yu. V., 2009, Upravl, V6, P159