Results 11 to 20 of about 73,037 (289)

Riemann Problem for a limiting system in elastodynamics

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

, 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., Prasad, J. K., Rasheed, A., Sturtevant, B.   +3 more
core   +1 more source

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

, 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., Mutz, A. H., Vreeland, T., Jr.   +2 more
core   +1 more source

Probing the neutrino mass hierarchy and the 13-mixing with supernovae [PDF]

, 2003
We consider in details the effects of the 13-mixing (sin^2 theta_{13}) and of the type of mass hierarchy/ordering (sign[ Delta m^2_{13}]) on neutrino signals from the gravitational collapses of stars.
Akhmedov E K, Alexei Yu Smirnov, Arneodo F (ICARUS collaboration), Bahcall J N, Barbieri R, Barger V, Barger V, Beacom J F, Beacom J F, Boehm F, Cecilia Lunardini, Clayton D D, Cline D B, de Holanda P C, Dighe A S, Dutta G, Dutta G, Dzewonski A M, Fogli G L, Friedland A, Janka H T, Janka H T, Jegerlehner B, Jung C K, Kachelriess M, Kachelriess M, Keil M T, Kuo T K, Kuo T K, Lunardini C, Lunardini C, Mikheev S P, Minakata H, Nunokawa H, Raffelt G G, Schirato R C, Shiozawa M, Strumia A, Super-Kamiokande Collaboration, Takahashi K, Takahashi K, TITAND Working Group Collaboration, Vagins M, Vogel P, Waltham C   +44 more
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Growth of shocked gaseous interfaces in a conical geometry [PDF]

, 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., Kumar, Sanjay, Sturtevant, B.   +2 more
core   +1 more source

Embedded delta shocks

Heliyon, 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
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Riemann problem for a compressible perfect fluid with a constant external force for the Chaplygin gas

Boundary Value Problems, 2018
The Riemann problem for a compressible perfect fluid with a constant external force for the Chaplygin gas is considered. We obtain two kinds of exact solutions. The first one consists of contact discontinuities, while the other one involves a delta shock
Yicheng Pang, Min Hu, Jinhuan Wang
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On a Nonsymmetric Keyfitz-Kranzer System of Conservation Laws with Generalized and Modified Chaplygin Gas Pressure Law

Advances in Mathematical Physics, 2013
This paper is devoted to the study of a nonsymmetric Keyfitz-Kranzer system of conservation laws with the generalized and modified Chaplygin gas pressure law, which may admit delta shock waves, a topic of interest.
Hongjun Cheng, Hanchun Yang
doaj   +1 more source

Nonlinear low-frequency wave aspect of foreshock density holes [PDF]

Annales Geophysicae, 2008
Recent observations have uncovered short-duration density holes in the Earth's foreshock region. There is evidence that the formation of density holes involves non-linear growth of fluctuations in the magnetic field and plasma density, which results ...
N. Lin, E. Lee, F. Mozer, G. K. Parks, M. Wilber, H. Rème   +5 more
doaj   +1 more source

Four-Quadrant Riemann Problem for a 2 × 2 System Involving Delta Shock

Mathematics, 2021
In this paper, a four-quadrant Riemann problem for a 2×2 system of hyperbolic conservation laws is considered in the case of delta shock appearing at the initial discontinuity.
Jinah Hwang, Suyeon Shin, Myoungin Shin, Woonjae Hwang   +3 more
doaj   +1 more source