Physics-constrained coupled neural differential equations for one dimensional blood flow modelingComputational cardiovascular flow modeling plays a crucial role in understanding blood flow dynamics. While 3D models provide acute details, they are computationally expensive, especially with…Hunor Csala, Arvind Mohan, Daniel Livescu et al.·Nov 8, 2024SaveLearn
Identifying spatially-localized instability mechanisms using sparse optimizationRecent investigations have established the physical relevance of spatially-localized instability mechanisms in fluid dynamics and their potential for technological innovations in flow control. In…Talha Mushtaq, Maziar S. Hemati·Nov 8, 2024SaveLearn
Turbulent Boundary Layer in a 3-Element High-LiftWing: Coherent Structures IdentificationA wall-resolved large-eddy simulation (LES) of the fluid flow around a 30P30N airfoil is conducted at a Reynolds number of Rec=750,000 and an angle of attack (AoA) of 9 degrees. The simulation…Ricard Montalà, Benet Eiximeno, Arnau Miró et al.·Nov 8, 2024SaveLearn
Dynamic equilibrium of electrochemical bubbles growing on micro-electrodesIn gas evolving electrolysis, bubbles grow at electrodes due to a diffusive influx from oversaturation generated locally in the electrolyte by the electrode reaction. When considering electrodes of…Mengyuan Huang, Chao Sun, Kerstin Eckert et al.·Nov 8, 2024SaveLearn
Surface-acoustic-wave driven silicon microfluidic chips for acoustic tweezing of motile cells and viscoelastic microbeadsAcoustic tweezers comprising a surface acoustic wave chip and a disposable silicon microfluidic chip are potentially advantageous to stable and cost-ffective acoustofluidic experiments while avoiding…Shichao Jia, Soichiro Tsujino·Nov 8, 2024SaveLearn
On nonlinear transitions, minimal seeds and exact solutions for the geodynamoNearly fifty years ago, Roberts (1978) postulated that Earth's magnetic field, which is generated by turbulent motions of liquid metal in its outer core, likely results from a subcritical…Calum S. Skene, Florence Marcotte, Steven M. Tobias·Nov 8, 2024SaveLearn
Exact Non-Local Hydrodynamics Predict Rarefaction EffectsWe combine the theory of slow spectral closure for linearized Boltzmann equations with Maxwell's kinetic boundary conditions to derive non-local hydrodynamics with arbitrary accommodation. Focusing…Florian Kogelbauer, Ilya Karlin·Nov 8, 2024SaveLearn
Air entrainment by turbulent plunging jets: effect of jet roughness revisitedThe amount of air entrained by vertical water jets impacting a large pool is revisited. To test available phenomenological models, new data on the jet deformation at impact and on the entrained air…Ivan Redor, Gregory Guyot, Martin Obligado et al.·Nov 8, 2024SaveLearn
Implementation of spectral methods on Ising machines: toward flow simulations on quantum annealerWe investigate the possibility and current limitations of flow computations using quantum annealers by solving a fundamental flow problem on Ising machines. As a fundamental problem, we consider the…Kenichiro Takagi, Naoki Moriya, Shiori Aoki et al.·Nov 8, 2024SaveLearn
A High-Order Analytical Extension of the Corrected Smagorinsky Model for Non-Equilibrium Turbulent FlowThis study presents an extension of the corrected Smagorinsky model, incorporating advanced techniques for error estimation and regularity analysis of far-from-equilibrium turbulent flows. A new…Rômulo Damasclin Chaves dos Santos·Nov 8, 2024SaveLearn
Reducing data resolution for better super-resolution: Reconstructing turbulent flows from noisy observationA super-resolution (SR) method for the reconstruction of Navier-Stokes (NS) flows from noisy observations is presented. In the SR method, first the observation data is averaged over a coarse grid to…Kyongmin Yeo, Małgorzata J. Zimoń, Mykhaylo Zayats et al.·Nov 7, 2024SaveLearn
Particle Levitation Velocimetry for boundary layer measurements in high Reynolds number liquid helium turbulenceUnderstanding boundary layer flows in high Reynolds number (Re) turbulence is crucial for advancing fluid dynamics in a wide range of applications, from improving aerodynamic efficiency in aviation…Yinghe Qi, Wei Guo·Nov 7, 2024SaveLearn
Rarefied xenon flow in orificed hollow cathodesA parametric study is conducted to quantify the effect of the keeper electrode geometry on the neutral flow quantities within orificed hollow cathodes, prior to cathode ignition. The keeper impinges…Pierre-Yves C. R. Taunay, Willca Villafana, Sangeeta P. Vinoth et al.·Nov 7, 2024SaveLearn
Internal Solitary Wave Generation Using A Jet-Array WavemakerThis paper evaluates the experimental generation of internal solitary waves (ISWs) in a miscible two-layer system with a free surface using a jet-array wavemaker (JAW). Unlike traditional…Jen-Ping Chu, Mitul Luhar, Partrick Lynett·Nov 7, 2024SaveLearn
Dynamic mode decomposition of noisy flow dataDynamic mode decomposition (DMD) is a popular approach to analyzing and modeling fluid flows. In practice, datasets are almost always corrupted to some degree by noise. The vanilla DMD is highly…Andre Weiner, Janis Geise·Nov 7, 2024SaveLearn
Intermittency of a transitional airfoil flow with laminar separation bubble solved by the lattice-Boltzmann methodThe flow over a NACA0012 airfoil at a moderate Reynolds number Re = 50,000 and angle of attack of alpha = 3 degrees is investigated using the lattice-Boltzmann method (LBM). The LBM solutions are…Bernardo Luiz Ribeiro, Cayan Dantas, William Wolf·Nov 7, 2024SaveLearn
Hydrodynamic instabilities of propagating interfaces under Darcy's lawThe hydrodynamic instabilities of propagating interfaces in Hele-Shaw channels or porous media under the influence of an imposed flow and gravitational acceleration are investigated within the…Joel Daou, Prabakaran Rajamanickam·Nov 7, 2024SaveLearn
Hydrodynamic theory of premixed flames under Darcy's lawThis paper investigates the theoretical implications of applying Darcy's law to premixed flames, a topic of growing interest in research on flame propagation in porous media and confined geometries.…Prabakaran Rajamanickam, Joel Daou·Nov 7, 2024SaveLearn
Shear-induced force and dispersion due to buoyancy in a horizontal Hele-Shaw cellThis paper investigates shear flow in a Hele-Shaw cell, driven by varying horizontal buoyancy forces resulting from a horizontal density gradient induced by a scalar field. By employing asymptotic…Prabakaran Rajamanickam·Nov 7, 2024SaveLearn
Physics-informed Kolmogorov-Arnold Network with Chebyshev Polynomials for Fluid MechanicsSolving partial differential equations (PDEs) is essential in scientific forecasting and fluid dynamics. Traditional approaches often incur expensive computational costs and trade-offs in efficiency…Chunyu Guo, Lucheng Sun, Shilong Li et al.·Nov 7, 2024SaveLearn
LESnets (Large-Eddy Simulation nets): Physics-informed neural operator for large-eddy simulation of turbulenceAcquisition of large datasets for three-dimensional (3D) partial differential equations (PDE) is usually very expensive. Physics-informed neural operator (PINO) eliminates the high costs associated…Sunan Zhao, Zhijie Li, Boyu Fan et al.·Nov 7, 2024SaveLearn
Stochastic Regularity in Sobolev and Besov Spaces with Variable Noise Intensity for Turbulent Fluid DynamicsThis paper advances the stochastic regularity theory for the Navier-Stokes equations by introducing a variable-intensity noise model within the Sobolev and Besov spaces. Traditional models usually…Rômulo Damasclin Chaves dos Santos·Nov 7, 2024SaveLearn
Defiltering turbulent flow fields for Lagrangian particle tracking using machine learning techniquesWe propose a defiltering method of turbulent flow fields for Lagrangian particle tracking using machine learning techniques. Numerical simulation of Lagrangian particle tracking is commonly used in…Tomoya Oura, Koji Fukagata·Nov 7, 2024SaveLearn
Durotaxis in viscoelastic fluidsOrganisms often swim through fluids that are spatially inhomogeneous. If the fluids are polymeric, gradients in polymer concentration may lead to gradients in both fluid viscosity and elasticity. In…Vaseem A. Shaik, Jiahao Gong, Gwynn J. Elfring·Nov 6, 2024SaveLearn
Linking Mixing Interface Deformation to Concentration Gradients in Porous MediaWe study the pore-scale transport of a conservative scalar forming an advancing mixing front, which can be re-interpreted to predict instantaneous mixing-limited bimolecular reactions. We investigate…Saif Farhat, Guillem Sole-Mari, Diogo Bolster·Nov 6, 2024SaveLearn