Results 11 to 20 of about 73,454 (278)

Riemann Problem for a limiting system in elastodynamics

open access: yesElectronic Journal of Differential Equations, 2014
This article concerns the resolution of the Riemann problem for a 2x2 system in nonconservative form exhibiting parabolic degeneracy. The system can be perceived as the limiting equation (depending on a parameter tending to 0) of a 2x2 strictly ...
Anupam Pal Choudhury
doaj   +3 more sources

The devastating 06.02.2023 Turkey – Syria earthquake of extreme intensity XI: Aposteriori estimates and damage prevention [PDF]

open access: yesE3S Web of Conferences, 2023
The recent devastating earthquake of Mw7.8 occurred on February 6, 20223 in the Kahramanmaraş region having extreme intensity (XI) on the modified Mercalli scale (MMS) caused the death of more than 52,800 people in Turkey and Syria, as well as severe ...
Karakozova Anastasia   +3 more
doaj   +1 more source

Four-Quadrant Riemann Problem for a 2×2 System II

open access: yesMathematics, 2021
In previous work, we considered a four-quadrant Riemann problem for a 2×2 hyperbolic system in which delta shock appears at the initial discontinuity without assuming that each jump of the initial data projects exactly one plane elementary wave.
Jinah Hwang   +3 more
doaj   +1 more source

The limit Riemann solutions to nonisentropic Chaplygin Euler equations

open access: yesOpen Mathematics, 2020
We mainly consider the limit behaviors of the Riemann solutions to Chaplygin Euler equations for nonisentropic fluids. The formation of delta shock wave and the appearance of vacuum state are found as parameter ε\varepsilon tends to a certain value ...
Lin Maozhou, Guo Lihui
doaj   +1 more source

The late-time development of the Richtmyer–Meshkov instability [PDF]

open access: yes, 2000
Measurements have been made of the growth by the Richtmyer–Meshkov instability of nominally single-scale perturbations on an air/sulfur hexafluoride (SF6) interface in a large shock tube.
Kumar, S.   +3 more
core   +1 more source

Limits of Riemann Solutions to the Relativistic Euler Systems for Chaplygin Gas as Pressure Vanishes

open access: yesAbstract and Applied Analysis, 2013
Vanishing pressure limits of Riemann solutions to relativistic Euler system for Chaplygin gas are identified and analyzed in detail. Unlike the polytropic or barotropic gas case, as the parameter decreases to a critical value, the two-shock solution ...
Gan Yin, Kyungwoo Song
doaj   +1 more source

Growth of shocked gaseous interfaces in a conical geometry [PDF]

open access: yes, 2003
The results of experiments on Richtmyer-Meshkov instability growth of multimode initial perturbations on an air-sulfur hexafluoride (SF6) interface in a conical geometry are presented. The experiments are done in a relatively larger shock tube.
Hornung, H. G.   +2 more
core   +1 more source

Limit of Riemann Solutions to the Nonsymmetric System of Keyfitz-Kranzer Type

open access: yesThe Scientific World Journal, 2014
The limit of Riemann solutions to the nonsymmetric system of Keyfitz-Kranzer type with a scaled pressure is considered for both polytropic gas and generalized Chaplygin gas.
Lihui Guo, Gan Yin
doaj   +1 more source

Embedded delta shocks

open access: yesHeliyon, 2020
In 1977 Korchinski presented a new type of shock discontinuity in conservation laws. These singular solutions were coined δ-shocks since there is a time dependent Dirac delta involved.
Pablo Castañeda
doaj   +1 more source

Shock wave initiation of the Ti5Si3 reaction in elemental powders [PDF]

open access: yes, 1997
Elemental powder mixes were subjected to plane wave shock processing which reduced the initial porosity to essentially zero. Two powder mixes in a 5:3 Ti:Si atomic ratio were used: -325 mesh Ti and Si (
Montilla, K. L.   +2 more
core   +1 more source

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