#cfd — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #cfd, aggregated by home.social.
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#FluidX3D #CFD v3.7 brings faster Q-criterion isosurface rendering with #OpenCL local memory optimization! 🖖🤠
https://github.com/ProjectPhysX/FluidX3D/releases/tag/v3.7Instead of 32 velocities for each #GPU thread, now an 8x8x8 workgroup loads & reuses 11x11x11 velocities in L1$, a 12x VRAM BW reduction.
Fascinating insight: Which thread loads which cell from VRAM to L1$, and which thread renders which grid cell within the workgroup, can be very different!
https://github.com/ProjectPhysX/FluidX3D/blob/master/src/kernel.cpp#L2827-L2956PS: plugged X-wing Gif in #GitHub preview 🖖😜
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https://www.europesays.com/dk/82399/ Defensive sectors outperform as chips retreat – Danske Bank #CFD #DanskeBank #Forex #TMGM #Trading
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https://www.europesays.com/dk/82185/ Hot CPI keeps Fed cautious – Danske Bank #CFD #DanskeBank #Forex #TMGM #Trading
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https://www.europesays.com/dk/82161/ Mixed sector drivers in global rally – Danske Bank #CFD #DanskeBank #Forex #TMGM #Trading
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https://www.europesays.com/dk/82069/ Lower against Euro on UK political turmoil – Danske Bank #CFD #DanskeBank #Forex #TMGM #Trading
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Photo of the Day 12th May 2026.
[…]https://mancavgeek.co.uk/2026/05/12/photo-of-the-day-12th-may-2026/
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Photo of the Day 12th May 2026.
[…]https://mancavgeek.co.uk/2026/05/12/photo-of-the-day-12th-may-2026/
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Photo of the Day 12th May 2026.
[…]https://mancavgeek.co.uk/2026/05/12/photo-of-the-day-12th-may-2026/
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Photo of the Day 12th May 2026.
[…]https://mancavgeek.co.uk/2026/05/12/photo-of-the-day-12th-may-2026/
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Photo of the Day 12th May 2026.
[…]https://mancavgeek.co.uk/2026/05/12/photo-of-the-day-12th-may-2026/
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https://www.europesays.com/dk/79862/ Norges Bank seen hiking and guiding higher – Danske Bank #CFD #DanskeBank #Forex #TMGM #Trading
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https://www.europesays.com/dk/79410/ Norges Bank seen hiking and guiding higher – Danske Bank #CFD #DanskeBank #Forex #TMGM #Trading
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#Google Cloud Fraud Defence is just #WEI repackaged
https://privatecaptcha.com/blog/google-cloud-fraud-defence-wei/
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https://www.wacoca.com/life/388719/ 【GuardTechコミュニティ／インスウオッチ】金融庁Japan Fintech Week連携イベント「ホケンノミライ2026」を開催！ | グッドウェイ：金融・IT業界・フィンテック情報ポータルサイト（GoodWay Fintech） #CFD #CLO #FinTech #FX #goodway #Hoken #Insurance #IoT #It #PFM #オンライントレード #グッドウェイ #クラウド #サービス #セキュリテイ #デリバティブ #ニュース #ビジネスツール #ビッグデータ #ビットコイン #ファンディング #ファンド #フィンテック #ブロックチェーン #ペイメント #レンディング #ローン #ロボアドバイザー #仮想通貨 #保険 #個人財務管理 #先物 #国際分散投資 #外国為替証拠金 #投信 #投資信託 #投資情報 #投資支援 #新興国 #日経225 #暗号通貨 #株式 #株式会社グッドウェイ #業務支援 #比較 #決済 #為替 #経営 #融資 #証券 #送金 #金融 #銀行
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https://www.wacoca.com/life/388719/ 【GuardTechコミュニティ／インスウオッチ】金融庁Japan Fintech Week連携イベント「ホケンノミライ2026」を開催！ | グッドウェイ：金融・IT業界・フィンテック情報ポータルサイト（GoodWay Fintech） #CFD #CLO #FinTech #FX #goodway #Hoken #Insurance #IoT #It #PFM #オンライントレード #グッドウェイ #クラウド #サービス #セキュリテイ #デリバティブ #ニュース #ビジネスツール #ビッグデータ #ビットコイン #ファンディング #ファンド #フィンテック #ブロックチェーン #ペイメント #レンディング #ローン #ロボアドバイザー #仮想通貨 #保険 #個人財務管理 #先物 #国際分散投資 #外国為替証拠金 #投信 #投資信託 #投資情報 #投資支援 #新興国 #日経225 #暗号通貨 #株式 #株式会社グッドウェイ #業務支援 #比較 #決済 #為替 #経営 #融資 #証券 #送金 #金融 #銀行
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https://www.wacoca.com/life/388719/ 【GuardTechコミュニティ／インスウオッチ】金融庁Japan Fintech Week連携イベント「ホケンノミライ2026」を開催！ | グッドウェイ：金融・IT業界・フィンテック情報ポータルサイト（GoodWay Fintech） #CFD #CLO #FinTech #FX #goodway #Hoken #Insurance #IoT #It #PFM #オンライントレード #グッドウェイ #クラウド #サービス #セキュリテイ #デリバティブ #ニュース #ビジネスツール #ビッグデータ #ビットコイン #ファンディング #ファンド #フィンテック #ブロックチェーン #ペイメント #レンディング #ローン #ロボアドバイザー #仮想通貨 #保険 #個人財務管理 #先物 #国際分散投資 #外国為替証拠金 #投信 #投資信託 #投資情報 #投資支援 #新興国 #日経225 #暗号通貨 #株式 #株式会社グッドウェイ #業務支援 #比較 #決済 #為替 #経営 #融資 #証券 #送金 #金融 #銀行
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#FluidX3D #CFD has reached ⭐ 5000 Stargazers on #GitHub! 🖖🥳
Grid refinement update is still in development, I haven't forgotten... ⬜◻️◽▫️
https://github.com/ProjectPhysX/FluidX3D -
My implementation of the GaussSeidel smoother using a Diagnol direct access scheme in OpenFOAM as compared to the default GS smoother LDU gives almost ~50% improvements in cache misses and hits for a structured 3D cavity tutorial. Profiled using the amazing LIKWID profiler. Will share a deep technical report soon. Check it out and use - https://github.com/amartyadav/DIAGaussSeidel-Smoother-OpenFOAM
#hpc #scientificcomputing #computationalphysics #cfd #openfoam #likwid #softwaredevelopment #cpp -
Released my DIA-format Gauss-Seidel smoother plugin for OpenFOAM v13. MIT licensed.
Replaces the default LDU smoother on structured hex meshes — DIA stores diagonal bands contiguously, reducing pointer indirection and DRAM pressure. Expecting 10–20% wall-clock gains and better cache utilisation based on standalone profiling. Full OpenFOAM benchmarks incoming.
https://github.com/amartyadav/DIAGaussSeidel-Smoother-OpenFOAM
#OpenFOAM #HPC #CFD #NumericalMethods #FOSS #computerscience #physics
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Finally Intel #GPU support on Linux too. Watch all the metrics go brrr in multi-GPU #FluidX3D #CFD workload! Will #opensource soon™️
Hardening against the myriads of broken counters in all those bugged APIs was a long shot. 🖖🫠
____________ | Windows | #Linux |
CPU / RAM | ✅️️WinAPI | ✅️️/proc |
#Nvidia GPU | ✅️️NVML | ✅️️NVML |
#Intel GPU | ✅IGCL | ✅SYSMAN |
#AMD GPU | ✅️️️️ADLX | ✅️️️️AMDSMI | -
FreeCAD: It IS Rocket Science!
In full disclosure the author of this post is involved in model, amateur and high power rocketry so forgive their over excitement! This blogpost highlights a fabulous video from #NARCON around using #FreeCAD for #Rocket design analysis using #CFD #rocketry
https://blog.freecad.org/2026/04/03/freecad-it-is-rocket-science/
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Throwback to April fools day 2022, when I solo-submitted a paper with the word "esoteric" in the title *twice*. The editor carefully asked me if that was a joke. 🖖😆
Turns out I was totally serious, and that paper scored me the MDPI Computation 2022 Best Paper Award and ~500€ prize money.
The paper is about two weird algorithms I found to cut VRAM footprint in half for #LBM #CFD simulations on #GPU. A topic that couldn't be more relevant today with the DRAM crisis. 💾🔥
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EU seeks coordinated action amid fears of prolonged energy supply disruption
The European Union needs to take coordinated action to tackle the energy market volatility caused by the war…
#Europe #EU #EuropeanCommission #biofuel #CfD #contractsfordifference #electricityprices #Energyprices #Fossilfuels #gasprices #IEA #InternationalEnergyAgency #Iran #naturalgas #Oil #PowerPurchaseAgreement #PPA #securityofsupply
https://www.europesays.com/europe/3762/ -
#FluidX3D #CFD v3.6 is out! This release accumulates a number of small improvements over the last months. Most notably, better interactive graphics support on #macOS with XQuartz. Have fun! 🖖😎🌊🍏
https://github.com/ProjectPhysX/FluidX3D/releases/tag/v3.6 -
My work for the month is to optimise the matrix adressing scheme of OpenFOAM to reduce cache miss. Initial idea is to replace the LDU Matrix addressing scheme with Diagnol matrix addressing scheme using multiple arrays for structures meshes. Will check it out on a simple 2D Poisson equation using Gauss-Seidel solver to check performance benefits, and will eventually proceed to introduce a new solver as a plugin if benefits are noticeable.
Wish me luck. -
https://www.wacoca.com/kpop/1470345/videos/2026-03-15/ FX、－2億8700万円！ドル円暴騰で160円突破確実ゥ！！ #160円 #CFD #f(x) #fomc #g7 #KPOP男性アイドルランキング #アラブ首長国連邦 #イラン #インプレ #オーストラリア準備銀行 #オレ的ゲーム速報 #カナダ銀行 #ジン #ジン（JIN） #スーパーウィーク #スイス国立銀行 #トランプ #ドル円 #ドル高 #ホルムズ海峡 #リスクオフ #中東情勢 #今週の相場 #円安 #利上げ #利上げ見送り #利下げ #原油が高い #原油価格 #口頭介入 #含み損 #地政学リスク #女性115 #安全資産 #投資する #投資初心者 #政策金利益 #日本株 #日経平均 #日銀 #日銀会合 #株価指数 #植田総裁 #消費者物価 #為替 #為替予想 #為替介入 #片山財務相 #米国株 #経済ニュース #経済指標 #資産運用 #金融投資 #金融政策 #金融政策決定の収束 #韓国の男性メンバー人気No1は？
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Richtmyer-Meshkov Instability
If you send a shock wave through a magnetized plasma–something that happens in both supernova explosions and inertial confinement fusion–it can trigger an instability known as the Richtmyer-Meshkov instability. The image above shows a form of this, taken from a simulation. Rather than treating the plasma as a single idealized fluid, the researchers represented it as two fluids: an ion fluid and an electron fluid. This allowed them to better capture what happens when certain components of the plasma react to changes faster than others do.
The image itself shows the electron number density across the fluid, where darker colors represent higher electron number density. The interface between high and low-densities shows a roll-up instability that resembles the Kelvin-Helmholtz instability, but there are also regions of mushroom-like plumes that more closely resemble Rayleigh-Taylor instabilities.
The authors note that these structures don’t appear in simulations that represent a plasma as a single fluid; you need the two-fluid representation to see them. (Image and research credit: O. Thompson et al.)
#CFD #computationalFluidDynamics #fluidDynamics #instability #KelvinHelmholtzInstability #magnetohydrodynamics #numericalSimulation #physics #plasma #RayleighTaylorInstability #RichtmyerMeshkovInstability #science #shockwave -
Improving Turbulence Models
Calculating turbulent flows like those found in the ocean and atmosphere is extremely expensive computationally. That’s why forecasting models use techniques like Large Eddy Simulation (LES), where large physical scales are calculated according to the governing physical equations while smaller scales are approximated with mathematical models. Researchers are always looking for ways to improve these models–making them more physically accurate, easier to compute, and more computationally stable.
In a new study, researchers used an equation-discovery tool to find new improvements to these models for the smaller turbulent scales. They started by doing a full, computationally expensive calculation of the turbulent flow. The equation-discovery tool then analyzed these results, looking to match them to a library of over 900 possible equations. When it found a form that fit the data, the researchers were then able to show analytically how to derive that equation from the underlying physics. The result is a new equation that models these smaller scales in a way that’s physically accurate and computationally stable, offering possibilities for better LES. (Image credit: CasSa Paintings; research credit: K. Jakhar et al.; via APS)
#CFD #computationalFluidDynamics #fluidDynamics #geophysics #largeEddySimulation #machineLearning #mathematics #numericalSimulation #physics #science #turbulence -
The submission deadline for abstracts and training courses has been extended to March 15 to fill the last places in the programme.
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Transport and settling of suspended particles in a simulated estuary: particle-laden freshwater enters a basin filled with seawater. The white iso-surface indicates 50% of the original particle density. Kelvin-Helmholtz instabilities evolve in the shear flow and drive the turbulent mixing. Rayleigh–Taylor instabilities can be observed in the initial settling phase. Based on Direct #Numerical #Simulation.
#sedimentation #estuary #fluiddynamics #turbulence #CFD #computationalfluiddynamics
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Transport and settling of suspended particles in a simulated estuary: particle-laden freshwater enters a basin filled with seawater. The white iso-surface indicates 50% of the original particle density. Kelvin-Helmholtz instabilities evolve in the shear flow and drive the turbulent mixing. Rayleigh–Taylor instabilities can be observed in the initial settling phase. Based on Direct #Numerical #Simulation.
#sedimentation #estuary #fluiddynamics #turbulence #CFD #computationalfluiddynamics
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Transport and settling of suspended particles in a simulated estuary: particle-laden freshwater enters a basin filled with seawater. The white iso-surface indicates 50% of the original particle density. Kelvin-Helmholtz instabilities evolve in the shear flow and drive the turbulent mixing. Rayleigh–Taylor instabilities can be observed in the initial settling phase. Based on Direct #Numerical #Simulation.
#sedimentation #estuary #fluiddynamics #turbulence #CFD #computationalfluiddynamics
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Transport and settling of suspended particles in a simulated estuary: particle-laden freshwater enters a basin filled with seawater. The white iso-surface indicates 50% of the original particle density. Kelvin-Helmholtz instabilities evolve in the shear flow and drive the turbulent mixing. Rayleigh–Taylor instabilities can be observed in the initial settling phase. Based on Direct #Numerical #Simulation.
#sedimentation #estuary #fluiddynamics #turbulence #CFD #computationalfluiddynamics
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Transport and settling of suspended particles in a simulated estuary: particle-laden freshwater enters a basin filled with seawater. The white iso-surface indicates 50% of the original particle density. Kelvin-Helmholtz instabilities evolve in the shear flow and drive the turbulent mixing. Rayleigh–Taylor instabilities can be observed in the initial settling phase. Based on Direct #Numerical #Simulation.
#sedimentation #estuary #fluiddynamics #turbulence #CFD #computationalfluiddynamics
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Another one from the archive: turbulent mixing of sediment-laden freshwater and seawater (black). The white iso-surface indicates a 50/50 mix. The freshwater enters the basin at the bottom left. Direct #Numerical #Simulation.
#sedimentation #estuary #fluiddynamics #turbulence #CFD #computationalfluiddynamics
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Another one from the archive: turbulent mixing of sediment-laden freshwater and seawater (black). The white iso-surface indicates a 50/50 mix. The freshwater enters the basin at the bottom left. Direct #Numerical #Simulation.
#sedimentation #estuary #fluiddynamics #turbulence #CFD #computationalfluiddynamics
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Another one from the archive: turbulent mixing of sediment-laden freshwater and seawater (black). The white iso-surface indicates a 50/50 mix. The freshwater enters the basin at the bottom left. Direct #Numerical #Simulation.
#sedimentation #estuary #fluiddynamics #turbulence #CFD #computationalfluiddynamics
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Another one from the archive: turbulent mixing of sediment-laden freshwater and seawater (black). The white iso-surface indicates a 50/50 mix. The freshwater enters the basin at the bottom left. Direct #Numerical #Simulation.
#sedimentation #estuary #fluiddynamics #turbulence #CFD #computationalfluiddynamics
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Snapshot of the turbulent mixing of sediment-laden freshwater (black) and seawater (white / grey) in a modelled estuary. The scene is seen from the top. The freshwater enters from the bottom of the picture.
The results were obtained from a Direct #Numerical #Simulation. Only half of the domain is simulated (the other half is mirrored). Only the interesting part is shown (the simulated domain is actually a lot bigger).
#sedimentation #estuary #fluiddynamics #CFD #computationalfluiddynamics
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Snapshot of the turbulent mixing of sediment-laden freshwater (black) and seawater (white / grey) in a modelled estuary. The scene is seen from the top. The freshwater enters from the bottom of the picture.
The results were obtained from a Direct #Numerical #Simulation. Only half of the domain is simulated (the other half is mirrored). Only the interesting part is shown (the simulated domain is actually a lot bigger).
#sedimentation #estuary #fluiddynamics #CFD #computationalfluiddynamics
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Snapshot of the turbulent mixing of sediment-laden freshwater (black) and seawater (white / grey) in a modelled estuary. The scene is seen from the top. The freshwater enters from the bottom of the picture.
The results were obtained from a Direct #Numerical #Simulation. Only half of the domain is simulated (the other half is mirrored). Only the interesting part is shown (the simulated domain is actually a lot bigger).
#sedimentation #estuary #fluiddynamics #CFD #computationalfluiddynamics
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Snapshot of the turbulent mixing of sediment-laden freshwater (black) and seawater (white / grey) in a modelled estuary. The scene is seen from the top. The freshwater enters from the bottom of the picture.
The results were obtained from a Direct #Numerical #Simulation. Only half of the domain is simulated (the other half is mirrored). Only the interesting part is shown (the simulated domain is actually a lot bigger).
#sedimentation #estuary #fluiddynamics #CFD #computationalfluiddynamics
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Snapshot of the turbulent mixing of sediment-laden freshwater (black) and seawater (white / grey) in a modelled estuary. The scene is seen from the top. The freshwater enters from the bottom of the picture.
The results were obtained from a Direct #Numerical #Simulation. Only half of the domain is simulated (the other half is mirrored). Only the interesting part is shown (the simulated domain is actually a lot bigger).
#sedimentation #estuary #fluiddynamics #CFD #computationalfluiddynamics
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Might publish a blog or two in a few weeks about my work with OpenFOAM, different profilers, and an implementation of an LBM CFD kernel on RISC-V with POSITS.
What a great company to be working for. Learning so much!
#posit #RISCV #cfd #openfoam #lbm #cfd #scientificcomputing #profiler #Linux #blog #technicalblog #ieee754 #calligotech
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Inside Cepheid Variable Stars
Cepheid variable stars pulsate in brightness over regular periods. That’s one reason astronomers use them as a standard candle to judge distances–even for stars well outside our galaxy. In this image, researchers display a simulation of convection inside a Cepheid eight times more massive than our sun. The colors represent vorticity, with zero vorticity in white.(Image credit: M. Stuck and J. Pratt)
#2025gofm #astrophysics #CFD #computationalFluidDynamics #convection #flowVisualization #fluidDynamics #numericalSimulation #physics #science -
Q&A: New UK onshore wind and solar is ‘50% cheaper’ than new gas
The UK government has secured a record 7.4 gigawatts (GW) of solar, onshore wind and tidal power in…
#NewsBeep #News #Headlines #AR7 #CfD #ContractsforDifference #Onshorewind #solarpower #UK #UnitedKingdom
https://www.newsbeep.com/393185/
