Good morning and happy Monday, lovely people of the internet. 🌤☕🥳
Just remember that today is also a new day to look to the future with hope. (Or something like that.)
#DavidLynch #meme #funny …
Oof, kid is sick, so I am staff-engineer and chief of nursing staff at the same time today
I am experiencing a dissonance between effectiveness and care on both roles
I care a lot about kid, but I can't do much besides bring him blankets and warm drinks
I am super effective at work right now, but I can't bring myself to give a damn about the job (I do care for — and resent — the précarité that so many of my colleagues are feeling)
just fixed the OEIL scraper (again!), someone who needs to justify their EU bureaucrat salary and pension had spent the (half) effort and renamed some (not all) css classes starting with "erpl_" to "es_", which of course we use in our xpath expressions and which thusly broke.
anyway big thanks and hugs to the kind person who reported the failing scraper to us. ❤️
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
🥔 Whole-food diet adherence means you really can eat much more and be well-nourished but still consume far fewer calories
https://medicalxpress.com/news/2026-01-food-diet-adherence-nourished-consume.html