Multimodal nonlinear acoustics in two- and three-dimensional curved ductsWe develop a weakly nonlinear model of duct acoustics in two and three dimensions (without flow). The work extends the previous work of McTavish & Brambley (2019, J. Fluid Mech. 875, pp. 411-447) to…Freddie Jensen, Edward James Brambley·Mar 14, 2025SaveLearn
Dynamic Manipulation of Multiphase Fluid in Microgravity Using Photoresponsive SurfactantControl of bubble motion is essential for improving efficiency and creating new functionalities in electrochemistry, heat transfer, and biomedical systems. Photoresponsive surfactants enable bubble…Xichen Liang, Kseniia M. Karnaukh, Qixuan Cao et al.·Mar 14, 2025SaveLearn
A regional implementation of a mixed finite-element, semi-implicit dynamical coreThis paper explores how to adapt a new dynamical core to enable its use in one-way nested regional weather and climate models, where lateral boundary conditions (LBCs) are provided by a…Christine Johnson, Ben Shipway, Thomas Melvin et al.·Mar 14, 2025SaveLearn
Physics-constrained DeepONet for Surrogate CFD models: a curved backward-facing step caseThe Physics-Constrained DeepONet (PC-DeepONet), an architecture that incorporates fundamental physics knowledge into the data-driven DeepONet model, is presented in this study. This methodology is…Anas Jnini, Harshinee Goordoyal, Sujal Dave et al.·Mar 14, 2025SaveLearn
Formation of a Single Bioconvection Spot in Euglena Suspension Induced by Negative PhototaxisMicroorganisms are known to alter their motility in response to external stimuli. A typical example is the responseknown as taxis, which includes behaviors such as moving toward a light source…Hiroshi Yamashita, Takayuki Yamaguchi, Nobuhiko J. Suematsu et al.·Mar 14, 2025SaveLearn
Characterization of porous nanoparticles using the lattice Boltzmann method for fluid flowNanoporous capsules have been the subject of intense investigation in the field of drug delivery. One of the essential properties of such particles, which requires characterization, is their…Wagner Gomes Rodrigues Junior, Vera Bohomoletz Henriques·Mar 13, 2025SaveLearn
Thermal Management of Lithium-Ion Batteries: A Comparative Study of Phase Change Materials and Air-Cooling Systems Equipped with FinsLithium-ion batteries are extensively utilized as the primary power source for electric vehicles due to their high energy density, environmental friendliness and lightweight nature. However, their…Masoumeh Karimi Kisomi·Mar 13, 2025SaveLearn
Mathematical modelling for acoustic microstreaming produced by a gas bubble undergoing asymmetric oscillationsAn exact solution is developed for the bubble-induced acoustic microstreaming in the case of a gas bubble undergoing asymmetric oscillations. The modeling is based on the decomposition of the…Claude Inserra, Cyril Mauger, Philippe Blanc-Benon et al.·Mar 13, 2025SaveLearn
Experimental study of the convection in a thin cylindrical gas layer with imposed bottom and top fluxes and imposed side temperatureWe investigate convection in a thin cylindrical gas layer with an imposed flux at the bottom and a fixed temperature along the side, using a combination of direct numerical simulations and laboratory…Florian Rein, Laure Carénini, Florian Fichot et al.·Mar 12, 2025SaveLearn
The Cahn-Hilliard-Navier-Stokes Framework for Multiphase Fluid Flows: Laminar, Turbulent, and ActiveThe Cahn-Hilliard-Navier-Stokes (CHNS) partial differential equations (PDEs) provide a powerful framework for the study of the statistical mechanics and fluid dynamics of multiphase fluids. We…Nadia Bihari Padhan, Rahul Pandit·Mar 12, 2025SaveLearn
Yield-Stress Fluid Mixing: Localization Mechanisms and Regime TransitionsWe explore the mechanisms and regimes of mixing in yield-stress fluids by simulating the stirring of an infinite, two-dimensional domain filled with a Bingham fluid. A cylindrical stirrer moves along…Mohammad Reza Daneshvar Garmroodi, Ida Karimfazli·Mar 12, 2025SaveLearn
Towards a Generalized SA Model: Symbolic Regression-Based Correction for Separated FlowsThis study focuses on the numerical simulation of high Reynolds number separated flows and proposes a data-driven approach to improve the predictive capability of the SA turbulence model. First, data…Xuxiang Sun, Xianglin Shan, Yilang Liu et al.·Mar 12, 2025SaveLearn
Large-scale multifractality and lack of self-similar decay for Burgers and 3D Navier-Stokes turbulenceWe study decaying turbulence in the 1D Burgers equation (Burgulence) and 3D Navier-Stokes (NS) turbulence. We first investigate the decay in time t of the energy E(t) in Burgulence, for a…Takeshi Matsumoto, Dipankar Roy, Konstantin Khanin et al.·Mar 12, 2025SaveLearn
Coherent Structures and Lattice-Boltzmann Hydrodynamics in Turbulent Pipe FlowsCoherent structures (CS) are known to be part of the foundations of turbulent flow dynamics. For a long time, their appearance was believed to be chaotic and unorganized. However, it has been…B. Magacho·Mar 11, 2025SaveLearn
The effect of split endcaps on the flow dynamics in a tall Taylor-Couette setupThe effects of axial boundaries, or endcaps are of fundamental interest in many Taylor-Couette (TC) flow experiments. A main challenge in those experiments has been to minimize these effects, which…A. Mishra, P. Personnettaz, G. Mamatsashvili et al.·Mar 11, 2025SaveLearn
An aerodynamic measurement system to improve the efficiency of wind turbine rotor bladesThe wind energy sector is growing rapidly with the installation of wind turbines with long, slender blades in a diverse range of locations. To enhance the operational performance under specific wind…Julien Deparday, Yuriy Marikovskiy, Imad Abdallah et al.·Mar 11, 2025SaveLearn
Hydrodynamics in a villi-patterned channel due to pendular-wave activityInspired by small intestine motility, we investigate the flow induced by a propagating pendular-wave along the walls of a channel lined with rigid, villi-like microstructures. The villi undergo…Rohan Vernekar, Faisal Ahmad, Martin Garic et al.·Mar 11, 2025SaveLearn
Super-resolution of turbulent velocity and scalar fields using different scalar distributionsIn recent years, sub-grid models for turbulent mixing have been developed by data-driven methods for large eddy simulation (LES). Super-resolution is a data-driven deconvolution technique in which…Ali Shamooni, Oliver T. Stein, Andreas Kronenburg·Mar 11, 2025SaveLearn
Excitation of non-modal perturbations in hypersonic boundary layers by freestream forcing: shock-fitting harmonic linearised Navier-Stokes approachIn this paper, we study the receptivity of non-modal perturbations in hypersonic boundary layers over a blunt wedge subject to freestream vortical, entropy and acoustic perturbations. Due to the…Lei Zhao, Ming Dong·Mar 11, 2025SaveLearn
Orbiting, colliding and merging droplets on a soap film: toward gravitational analoguesModern telescopes provide breathtaking images of nebulae, clouds and galaxies shaped by gravity-driven interactions between complex bodies. While such structures are prevalent on an astrophysical…Jean-Paul Martischang, Benjamin Reichert, Germain Rousseaux et al.·Mar 11, 2025SaveLearn
Elongated bubble centring and high-viscosity liquids in horizontal gas-liquid slug flow: Empirical analyses and novel theoryElongated bubble centringx2013an obscure counter-buoyant phenomenon encountered in horizontal gas-liquid slug flowx2013is correlated with liquid viscosity and their connection…Sean J. Perkins·Mar 11, 2025SaveLearn
Propulsion of flapping foils undergoing in-plane clap-and-fling and deviation motionsThis study examines the performance of two flapping flat-plate foils interacting with each other while generating thrust at a Reynolds number of 800 through two-dimensional numerical simulations.…Antoine Papillon, Mathieu Olivier·Mar 11, 2025SaveLearn
Nonlinear optimals and their role in sustaining turbulence in channel flowWe investigate the energy transfer from the mean profile to velocity fluctuations in channel flow by calculating nonlinear optimal disturbances,i.e. the initial condition of a given finite energy…Dario Klingenberg, Rich R. Kerswell·Mar 11, 2025SaveLearn
Rayleigh-B\'enard Convection with Phase Change Close to the Critical PointRayleigh-B\'enard convection is investigated with sulfur hexafluoride (SF6) in the vicinity of its critical point. In the supercritical domain, direct measurements of the heat flux Q as a…Valentin Mouet, Guillaume Michel, François Pétrélis et al.·Mar 11, 2025SaveLearn
MFC 5.0: An exascale many-physics flow solverMany problems of interest in engineering, medicine, and the fundamental sciences rely on high-fidelity flow simulation, making performant computational fluid dynamics solvers a mainstay of the…Benjamin Wilfong, Henry A. Le Berre, Anand Radhakrishnan et al.·Mar 11, 2025SaveLearn