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@toxi@mastodon.thi.ng
2026-03-28 10:14:34

Good concise overview of #Meshtastic vs #Meshcore and how to choose when to use which one...

@UP8@mastodon.social
2026-02-26 14:31:25

Rose Hips in the winter with falling precipitation somewhere between snow and rain
#photo #photography #rose #bloomscrolling

Four rose hips from two branches that come up from the lower left with an indistinct but colorful and high contrast background and falling precipitation of some kind
@arXiv_physicsfludyn_bot@mastoxiv.page
2026-02-26 09:01:51

Large eddy simulation of turbulent swirl-stabilized flames using the front propagation formulation: impact of the resolved flame thickness
Ruochen Guo, Yunde Su, Yuewen Jiang
arxiv.org/abs/2602.21940 arxiv.org/pdf/2602.21940 arxiv.org/html/2602.21940
arXiv:2602.21940v1 Announce Type: new
Abstract: This work extends the front propagation formulation (FPF) combustion model to large eddy simulation (LES) of swirl-stabilized turbulent premixed flames and investigates the effects of resolved flame thickness on the predicted flame dynamics. The FPF method is designed to mitigate the spurious propagation of under-resolved flames while preserving the reaction characteristics of filtered flame fronts. In this study, the model is extended to account for non-adiabatic effects and is coupled with an improved sub-filter flame speed estimation that resolves the inconsistency arising from heat-release effects on local sub-filter turbulence. The performance of the extended FPF method is validated by LES of the TECFLAM swirl-stabilized burner, where the results agree well with experimental measurements. The simulations reveal that the stretching of vortical structures in the outer shear layer leads to the formation of trapped flame pockets, which are identified as the physical mechanism responsible for the secondary temperature peaks observed in the experiment. The prediction of this phenomenon is shown to be strongly dependent on the resolved flame thickness, when the filter size is used for modeling sub-filter flame wrinklings. Without proper modeling of the chemical steepening effects, the thickness of the resolved flame brush is over-predicted, causing the flame consumption rate to be under-estimated. Consequently, the flame brush detaches from the outer shear layer, resulting in a failure to capture the flame pockets and the associated secondary temperature peaks.
toXiv_bot_toot

On Sept. 21, the police came for Larry Bushart.
They handcuffed him and hauled him away in the dead of night.
He spent 37 days in jail while held on a $2 million bond
— an amount the retired police officer could not afford.
It’s the sort of treatment one expects for accused murderers and thieves.
But Larry’s only “crime”?
In the aftermath of Charlie Kirk’s assassination, he posted a meme on Facebook
quoting President Trump’s remarks about a different …

@cheeaun@mastodon.social
2026-02-24 15:16:58

#PhanpySocial changelog ✨
📤 Allow receiving shared data with the Web Share Target API
🔐 Timeline access controls
👤 New shortcut: "Profile"
📝 "Only followings" filter for Mentions
↕️ Preliminary support for vertical-lr writing mode
🐛 Bug fixes
🔗

@Techmeme@techhub.social
2026-01-07 04:21:10

Filing: Larry Page moved assets out of California ahead of the proposed CA wealth tax, meeting an end-of-2025 deadline; a source said he has left the state (Hugh Langley/Business Insider)
businessinsider.com/larry-page

@davidaugust@mastodon.online
2026-02-18 13:40:00

I woke up angry today.
ICE spokesperson Lindsay Williams is a liar, who is bad at lying.
“Asked if the ICE officers chased Lopez, Williams said: ‘Chased? I wouldn’t say that. They followed him until he crashed.’”
Wouldn’t say that? How about: ICE was committing crime (their standard procedure), someone died, they’re the killers. Your people killed a school teacher, Williams.
Have the day you deserve, you apologist scum.

@metacurity@infosec.exchange
2026-01-20 11:02:01

Good luck with that!
British and Chinese security officials established a forum to discuss cyberattacks following a spate of hacking accusations that soured relations between the two countries.
bloomberg.com/news/article…

Lindsey Halligan out as U.S. attorney following pressure from judges
Lindsey Halligan,
a Trump administration lawyer who was named head of a key U.S. attorney’s office in Virginia last year
with instructions to seek criminal charges against Donald Trump’s perceived political adversaries,
left her post at the Justice Department on Tuesday.

Halligan’s departure followed a pair of extraordinary moves by two federal judges
who issued court orders hours earlie…