@cdarwin@c.im2026-01-26 02:39:46
Even before extremist Republican Donald Trump returned to the Oval Office on January 20,
progressives warned of his fascistic tendencies and plans,
often citing his platform, and highlighting what former Labor Secretary Robert Reich calls “Trump’s playbook of dictators.”
But too few people, even on the left side of the electorate, listened.
After all, those warnings have been sounded for months if not years.
“Trump is following, point for point, the playbook of …
@arXiv_physicsfludyn_bot@mastoxiv.page2026-02-26 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
https://arxiv.org/abs/2602.21940 https://arxiv.org/pdf/2602.21940 https://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
@inthehands@hachyderm.io2026-03-26 15:43:42
This is exactly the thing I wonder about. Was it shoved through over internal objections? Was it many teams’ separate good work stuck together too hastily? Was it the wrong kind of pressure from above, or bad taste from below, or what?
It’s frustrating because as a dev I catch glimpses of all the really fantastic engineering work folks at Apple are doing •inside• the box, and they’re feeling very little love for it right now because the •outside•is so clunky.
https://sfba.social/@scm/116296203532915798
@wraithe@mastodon.social2026-01-26 03:32:37
Apparently Timothy Doyle, a well known Marvel artist has been making some Anti-ICE art using The Punisher, Wolverine and Ghost Rider.
(h/t to https://bsky.app/profile/roterote.bsky.social)
@floheinstein@chaos.social2026-01-27 06:44:19
@thomasfuchs@hachyderm.io2026-01-26 18:48:31
A lot of what I’m archiving has like 0 hits but I just know sometime, someone, maybe in a hundred years from now, will find it useful.
It’s a nice feeling to have contributed just a little to preserving our cultural artifacts.
@danyork@mastodon.social2026-03-25 01:26:11
AVFTCN 040 – Returning From A Hiatus, and Plans for 2026
I'm back. After a self-imposed hiatus for most of 2025, I'm returning to something I've been deeply missing... writing and speaking. If you've been following me for any length of time, you know that not writing or speaking is, for me, a kind of pressure that builds and builds until I am ready to explode. 🤯 So what happened? The short version: my role at the…
@datascience@genomic.social2026-02-24 11:00:01
Primer to get you started with Optimization and Mathematical Programming in R #rstats
@padraig@mastodon.ie2026-03-24 17:00:31
Just pulled the @… card on #WikiGacha 🤣 #noxp
@Koffietje@social.linux.pizza2026-01-27 03:01:46
@karlailona@mastodon.social Ooh, same! vBulletin was my jam! The federation aspect really does make it feel like “a bunch of little forums”, but more convenient.
Also did some HTML and CSS in the past, before falling out of it, but then rediscovering the joys of programming as an adult!
If you ever need someone to learn Dutch with, let me know! (Finnish always seemed like such a daunting language to me… 😅)