卷 1, 编号 10 (2013)
- 年: 2013
- ##issue.datePublished##: 15.05.2013
- 文章: 10
- URL: https://ogarev-online.ru/2311-2468/issue/view/19590
完整期次
Divergent Difference Scheme for an Acoustics Equations System in a Non-Homogeneous Medium
摘要
The article considers the problem of sound waves propagation in a non- homogeneous medium. Particularly, the author deduces the integral conservation laws. As a result, the divergent difference schemes are derived.
Numerical Modelling of Flat Sound Waves Distribution in a Rest Environment
摘要
The article considers the process of flat sound waves (small perturbance) distribution in the rest environment. Constructed on the basis of divergent difference schemes software for the calculation of the velocity and pressure caused by the propagation of sound waves developed.
Numerical Modelling of Temperature Distribution in a Homogeneous Plate Without Affecting It by a Heat Source
摘要
The article considers the problem of temperature distribution in a homogeneous plate without affecting it by heat source. Divergent difference scheme is constructed. Consequently, the numerical experiment results are presented.
Economics Complex Systems: Solow Model-Based Studies
摘要
The article considers the Solow model to study the economic growth phenomenon. In this connection, the author reveals the factors that have an impact on the continuous economic growth under the conditions of a sustainable economy. The author also studies the interdependence of economic growth rate and capital investment volume.
SCORM Standard for Designing E-Learning Courses
摘要
The article presents are view of the software to develop SCORM compliant content. In this connection, the author considers a sample SCORM object designing.
Construction of Phase Portraits of Ordinary Differential Equations Systems
摘要
The article describes a web application on the construction of phase portraits of ordinary differential equations systems on the plane. The author uses the Runge-Kutta method of 4th order for the Cauchy problem numerical solution. In this connection, the examples of phase portraits are presented.
Visualization of First Boundary Value Problem Solutions for the Conservative Autonomous Duffing Equation by Using Methods of the Ramification Theory
摘要
The article provides a visualization of the first boundary value problem solutions for the conservative autonomous Duffing equation by using the method of series solution, the shooting method, and quasilinearization. Considering the study results, it is draw a conclusion about the approximate analytical solutions.
Computer Simulation of Viscous Gas Flows
摘要
The article considers equations to describe fluid and gas motions. Particularly, the authors have added formulas for viscous fluid flows computing to the code of fluid mechanics computational program cfd_2d developed by the Chair of Applied Mathematics. The article also includes an analysis of typical problems.
Numerical Method for a Solving Filtration Equation
摘要
The article focuses on the construction of numerical algorithms based on the finite volume method by using the formula of Ostrogradsky-Gauss. The decision on the temporary layers is tried in the implicit scheme by iteration.
Industry Economic Growth of the Republic of Mordovia: a Solow Model-Based Analysis
摘要
The article considers the Solow economic growth model. Particularly, the author checks the validity of equilibrium growth condition of the Republic of Mordovia’s industry. Considering the analysis results, the author suggests possible options for bringing Republic of Mordovia’s industry to the equilibrium growth.