Construction of Exact Solutions of the System of One-Dimensional Gas Dynamics Equations without Gradient Catastrophe
- Authors: Aksenov A.V.1,2, Druzhkov K.P.1,3
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Affiliations:
- Moscow State University
- National Research Nuclear University MEPh
- Moscow Institute of Physics and Technology (State University)
- Issue: No 1 (2023)
- Pages: 135-143
- Section: Articles
- URL: https://journals.rcsi.science/1024-7084/article/view/135058
- DOI: https://doi.org/10.31857/S0568528122600734
- EDN: https://elibrary.ru/AJZXYK
- ID: 135058
Cite item
Abstract
The system of equations that describes one-dimensional polytropic gas flows is considered. The invariants up to the second order of characteristics of the considered system of equations are classified. The method of reducing the Cauchy problems to systems of ordinary differential equations is proposed. Examples of the solutions without gradient catastrophe are constructed using invariants of characteristics supplementary to the Riemann invariants.
About the authors
A. V. Aksenov
Moscow State University; National Research Nuclear University MEPh
Email: aksenov@mech.math.msu.su
Moscow, Russia; Moscow, Russia
K. P. Druzhkov
Moscow State University; Moscow Institute of Physics and Technology (State University)
Author for correspondence.
Email: konstantin.druzhkov@gmail.com
Moscow, Russia; Dolgopudnyi, Moscow oblast, Russia
References
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