CoNFiLD-inlet: Synthetic turbulence inflow using generative latent diffusion models with neural fields [0.03%]
基于神经场的生成潜在扩散模型合成入口湍流(CoNFiLD-inlet)
Xin-Yang Liu,Meet Hemant Parikh,Xiantao Fan et al.
Xin-Yang Liu et al.
Eddy-resolving turbulence simulations require stochastic inflow conditions that accurately replicate the complex, multiscale structures of turbulence. Traditional recycling-based methods rely on computationally expensive precursor simulatio...
Guillermo L Nozaleda,Javier Alaminos-Quesada,Cándido Gutiérrez-Montes et al.
Guillermo L Nozaleda et al.
Hall, in his Ph.D. thesis (University of London, 1973), demonstrated that the viscous flow arising in a slender channel of slowly varying cross section subject to a purely oscillatory pressure difference between its open ends contains a ste...
Optimal trajectories for Bayesian olfactory search in turbulent flows: The low information limit and beyond [0.03%]
贝叶斯嗅觉搜索在湍流中的最优轨迹:低信息限制及其它情形
R A Heinonen,L Biferale,A Celani et al.
R A Heinonen et al.
In turbulent flows, tracking the source of a passive scalar cue requires exploiting the limited information that can be gleaned from rare, randomized encounters with the cue. When crafting a search policy, the most challenging and important...
Investigating the effect of turbulence on hemolysis through cell-resolved fluid-structure interaction simulations of individual red blood cells [0.03%]
通过个体红细胞的流体结构相互作用仿真研究湍流对溶血的影响
Grant Rydquist,Mahdi Esmaily
Grant Rydquist
Existing hemolysis algorithms are often constructed for laminar flows that expose red blood cells (RBCs) to a constant rate of shear. It remains an open question whether such models are applicable to turbulent flows, where there is a signif...
Ruy Ibanez,Aditya Raghunandan,Douglas H Kelley
Ruy Ibanez
In this study, we leverage geometry-induced asymmetries to rectify oscillatory flows and induce net directional transport of fluid in a looped network. We demonstrate this valveless rectification phenomenon in an experimental apparatus that...
Joseph M Barakat,Todd M Squires
Joseph M Barakat
The mechanics of curved, heterogeneous, surfactant-laden surfaces and interfaces are important to a variety of engineering and biological applications. To date, most models of rheologically complex interfaces have focused on homogeneous sys...
Origin and evolution of immersed boundary methods in computational fluid dynamics [0.03%]
计算流体力学中浸入边界的起源及发展方法
Rajat Mittal,Jung Hee Seo
Rajat Mittal
This article presents the evolutionary history of Immersed Boundary Methods (IBMs), tracing their origins to the very beginning of computational fluid dynamics in the late 1950s all the way to the present day. The article highlights the adv...
Aerosol agitation: Quantifying the hydrodynamic stressors on particulates encapsulated in small droplets [0.03%]
Aerosol搅拌:量化小型液滴中包封的颗粒物的流体动力学应力
Oliver McRae,Kenneth R Mead,James C Bird
Oliver McRae
Lower respiratory tract infections originate from multiple aerosol sources, varying from droplets erupting from bursting bubbles in a toilet or those produced by human speech. A key component of the aerosol-based infection pathway-from sour...
Christopher A Bowers,Cass T Miller
Christopher A Bowers
Single-fluid-phase porous medium systems are typically modeled at an averaged length scale termed the macroscale, and Darcy's law is typically relied upon as an approximation of the momentum equation under Stokes flow conditions. Standard a...
Ruy Ibanez,Mohammad Shokrian,Jong-Hoon Nam et al.
Ruy Ibanez et al.
Peristaltic flows occur when fluid in a channel is driven by periodic, traveling wall deformations, as in industrial peristaltic pumps, urethras, stomachs, and cochleae. Peristaltic flows often vary periodically at every point in space but ...