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Published in 2019 at "Archive for Rational Mechanics and Analysis"
DOI: 10.1007/s00205-019-01387-4
Abstract: We establish the global existence of solutions to the compressible Euler equations, in the case that a finite volume of ideal gas expands into a vacuum. Vacuum states can occur with either smooth or singular…
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Keywords:
global existence;
compressible euler;
existence;
solutions compressible ... See more keywords
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Published in 2019 at "Numerische Mathematik"
DOI: 10.1007/s00211-019-01027-9
Abstract: The objective of this article is to characterize the entropy and $$L_2$$L2 stability of several representative discontinuous Galerkin (DG) methods for solving the compressible Euler equations. Towards this end, three DG methods are constructed: one…
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Keywords:
compressible euler;
semi discrete;
euler equations;
entropy stability ... See more keywords
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Published in 2019 at "Journal of Differential Equations"
DOI: 10.1016/j.jde.2018.12.016
Abstract: Abstract In our previous work [17] , it is shown that any L ∞ weak entropy solution of damped compressible Euler equation converges to the Barrenblatt's solution with finite mass in L 1 norm with…
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Keywords:
convergence;
solution damped;
damped compressible;
compressible euler ... See more keywords
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Published in 2020 at "Journal of Differential Equations"
DOI: 10.1016/j.jde.2019.12.012
Abstract: Abstract We formulate a mathematical problem on hypersonic-limit of three-dimensional steady uniform non-isentropic compressible Euler flows of polytropic gases passing a straight cone with arbitrary cross-section and attacking angle, which is to study Radon measure…
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Keywords:
newton sine;
compressible euler;
measure;
radon measure ... See more keywords
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Published in 2021 at "Journal of Mathematical Analysis and Applications"
DOI: 10.1016/j.jmaa.2020.124761
Abstract: Abstract In this paper, using wave decomposition and establishing uniform a priori C 1 estimates, we proved global stability of steady supersonic Fanno flows under small perturbations of initial-boundary values in a one-dimensional rectilinear finite…
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Keywords:
steady supersonic;
compressible euler;
stability steady;
global stability ... See more keywords
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Published in 2018 at "Journal of Mathematical Physics"
DOI: 10.1063/1.5031120
Abstract: The blowup phenomenon for the initial-boundary value problem of the non-isentropic compressible Euler equations is investigated. More precisely, we consider a functional F(t) associated with the momentum and weighted by a general test function f…
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Keywords:
non isentropic;
compressible euler;
euler equations;
isentropic compressible ... See more keywords
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Published in 2019 at "Transactions of the American Mathematical Society"
DOI: 10.1090/tran/7747
Abstract: We introduce a variational time discretization for the multidimensional gas dynamics equations, in the spirit of minimizing movements for curves of maximal slope. Each time step requires the minimization of a functional measuring the acceleration…
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Keywords:
time;
compressible euler;
time discretization;
euler equations ... See more keywords