High-Order ADER-DG Hydrodynamics with ExaHyPE: Implementation, Validation, and Astrophysical Benchmarking
Andr\'es Mauricio Su\'arez Mantilla, Leonardo Casta\~neda Colorado
https://arxiv.org/abs/2605.17132 https://arxiv.org/pdf/2605.17132 https://arxiv.org/html/2605.17132
arXiv:2605.17132v1 Announce Type: new
Abstract: We describe a high-order ADER-DG solver for the compressible Euler equations within the ExaHyPE framework. The implementation combines a high-order ADER-DG polynomial representation, a local space-time DG predictor, adaptive mesh refinement, and an a posteriori subcell finite-volume limiter. We test the code on a deliberately mixed set of one- and two-dimensional problems: a strong-shock Sod-type problem, the Shu-Osher shock-entropy interaction, the Woodward-Colella blast wave, a contact-driven vortex sheet, and a shock-interface interaction. The one-dimensional cases recover the expected Euler wave patterns and show clear order-dependent gains in smooth and oscillatory regions. The two-dimensional cases probe a different part of the method, namely contact preservation, shear-driven roll-up, baroclinic vorticity deposition, and Richtmyer-Meshkov-type growth. In these tests the high-order update gives the expected resolution away from discontinuities, whereas the subcell limiter keeps the calculation stable near shocks and steep interfaces. The resulting code provides a reproducible ExaHyPE implementation for idealised inviscid, non-relativistic flows in which shocks, contacts, and multidimensional interfaces are the dominant features.
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"…Every filthy stupid thing that happens is happening in the open, now: Captains of industry line up to shake Trump's hand at…big birthday party he threw for himself…every new blast of rank & ancient bigotry or proudly pig-stupid backwardness arrives w/o euphemism or qualification. Trump is not just figuratively walling himself off from…DC, & glowering down at its residents, he is literally doing all those things."
Of course the National Emergency Briefing, endorsed by some senior military figures, was clear: climate change is a security issue.
But this fool thinks not: let's blast our way to the future.
PressReader.com | Carns tells Miliband: Energy is security issue not an environmental one. Should drill the North Sea.
Listen to in-depth investigation into the growing industry of green technologies and the environmental, social, and political consequences of the mining it requires. – Join us today, 6pm, at the German Mining Museum. Or virtually.
This, again, will be a blast 👐
Link to the event: htt…
@… does she? She's having a blast by the looks of it
Crosslisted article(s) found for physics.flu-dyn. https://arxiv.org/list/physics.flu-dyn/new
[1/1]:
- A Variational Lagrangian Framework for Log-Homotopy Particle Flow Filters
Oliv\'er T\"or\H{o}, Domonkos Csuzdi, Tam\'as B\'ecsi
https://arxiv.org/abs/2605.15379 https://mastoxiv.page/@arXiv_eessSY_bot/116594504929196718
- Control of the Fluidic Pinball using the Quadratic-Quadratic Regulator
Ali Bouland, Jeff Borggaard
https://arxiv.org/abs/2605.15438 https://mastoxiv.page/@arXiv_mathOC_bot/116594445551062130
- An efficient multi-GPU implementation for the Discontinuous Galerkin ocean model SLIM
De Le Court, Legat, Ishimwe, Scherpereel, Hanert, Lambrechts
https://arxiv.org/abs/2605.16082 https://mastoxiv.page/@arXiv_csDC_bot/116594484087540741
- Staggering domino-like blast front motion in a one-dimensional cold gas
Taras Holovatch, Yuri Kozitsky, Krzysztof Pilorz, Yurij Holovatch
https://arxiv.org/abs/2605.16125 https://mastoxiv.page/@arXiv_condmatstatmech_bot/116594543858868682
toXiv_bot_toot
Of course the National Emergency Briefing, endorsed by some senior military figures, was clear: climate change is a security issue.
But this fool thinks not: let's blast our way to the future.
PressReader.com | Carns tells Miliband: Energy is security issue not an environmental one. Should drill the North Sea.
America’s spending on the war in Iran will far outlast active combat.
The U.S. government has already made contracts and other commitments to repair damaged bases, field counter-drone platforms, feed and shelter thousands of troops and replenish munitions.
Even if President Trump signs a deal ending the war tomorrow, we will harden bases in Bahrain, Qatar, Kuwait, the United Arab Emirates, Saudi Arabia and Turkey,
by reinforcing aircraft shelters, building blast walls arou…
Discovery of an extremely narrow trail-like feature crossing the #Veil Supernova Remnant in deep amateur observations: #CygnusLoop, generated as the #SNR blast wave encounters a dense material layer or magnetic structure viewed nearly edge-on" -> a picture: https://x.com/astro_delgado/status/2071490005894123667
back on the water! didn't catch any keepers today but still had a blast with my dad :)
"Hurabiell has a history of making transphobic comments, which was public knowledge when Lurie attended ConnectedSF’s events... Lurie did not distance himself from ConnectedSF, however, and did not say whether he would associate with Hurabiell or the group going forward"
https://
the world is healing
The Rat Utopia Experiment - Blast! (Official Music Video)
#music
blast from the past:
https://www.youtube.com/watch?v=MacQpu8JniQ
How are things going, whatcha think?
addenda:
https://www…
Wow. Eggdrop IRC bot is still in active development. That's a blast from the past..
https://tracker.debian.org/pkg/eggdrop
Heyyyy sorry for vanishing for a while I've been having a fucking blast
#VRChat #FurryVR #Furality #FuralityUltra
Blast from the past:
Who Goes Nazi?, by Dorothy Thompson
https://harpers.org/archive/1941/08/who-goes-nazi/
Multi-Viewpoint Observation of a Failed #Prominence #Eruption on the #Sun: https://arxiv.org/abs/2604.23084 -> Astronomers Uncover Why Some Solar Eruptions: https://www.cfa.harvard.edu/news/astronomers-uncover-why-some-solar-eruptions-die - new multi-telescope observations show why a powerful blast never became a true mass ejection.
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