Microfluidic front dynamic for the characterization of pumps for long-term autonomous microsystemsTo facilitate the use and portability of Lab on a chip technology, it is desirable to avoid the use of bulky electronic systems for flow control. Developed self-powered microsystems typically move…Yara Alvarez-Braña, Andreu Benavent-Claró, Fernando Benito-Lopez et al.·Jun 11, 2024SaveLearn
Study on Kelvin Helmholtz shear flows subjected to differential rotationA numerical simulation of Kelvin-Helmholtz Instability (KHI) in parallel shear flows subjected to external rotation is carried out using a pseudo-spectral technique. The Coriolis force, arising in a…Prince Kumar, Devendra Sharma·Jun 10, 2024SaveLearn
Elasticity of fibres prefers the chaos of turbulenceThe dynamics of fibres, modelled as a sequence of inertial beads linked via elastic springs, in turbulent flows is dictated by a non-trivial interplay of their inertia and elasticity. Such elastic,…Rahul K. Singh·Jun 10, 2024SaveLearn
Turbulent spectrum of 2D internal gravity wavesWe find the turbulent energy spectrum of weakly interacting 2D internal gravity waves using the full, non-hydrostatic dispersion relation. This spectrum is an exact solution of a regularized kinetic…Michal Shavit, Oliver Bühler, Jalal Shatah·Jun 10, 2024SaveLearn
From yield stress to elastic instabilities: Tuning the extensional behavior of elastoviscoplastic fluidIn this study, we delve into the intricacies of elastoviscoplastic (EVP) fluids, particularly focusing on how polymer additives influence their extensional behavior. Our findings reveal that polymer…Mohamed S. Abdelgawad, Simon J. Haward, Amy Q. Shen et al.·Jun 10, 2024SaveLearn
Structure and energy transfer in homogeneous turbulence below a free surfaceWe investigate the turbulence below a quasi-flat free surface, focusing on the energy transport in space and across scales. We leverage a large zero-mean-flow tank where homogeneous turbulence is…Daniel J. Ruth, Filippo Coletti·Jun 9, 2024SaveLearn
Large Eddy Simulations of Flow over Additively Manufactured Surfaces: Impact of Roughness and Skewness on Turbulent Heat TransferAdditive manufacturing creates surfaces with random roughness, impacting heat transfer and pressure loss differently than traditional sand-grain roughness. We conducted high-fidelity heat transfer…Himani Garg, Guillaume Sahut, Erika Tuneskog et al.·Jun 8, 2024SaveLearn
Focusing of concentric free-surface wavesGravito-capillary waves at free-surfaces are ubiquitous in several natural and industrial processes involving quiescent liquid pools bounded by cylindrical walls. These waves emanate from the…Lohit Kayal, Vatsal Sanjay, Nikhil Yewale et al.·Jun 8, 2024SaveLearn
Low-cost wind turbine aeroacoustic predictions using actuator linesAerodynamic noise is a limitation for further exploitation of wind energy resources. As this type of noise is caused by the interaction of turbulent flow with the airframe, a detailed resolution of…Laura Botero-Bolivar, Oscar A Marino, Cornelis H. Venner et al.·Jun 8, 2024SaveLearn
Revisit to the WGVC schemes: a nonlinear order-preserving and spectral-property-optimized methodology and its enhancementThe numerical simulation of supersonic complex flow problems demands capabilities in identifying multiscale structures and capturing shocks, imposing stringent requirements on the numerical scheme.…Kang He, Hongwei Liu, Tongbiao Guo et al.·Jun 8, 2024SaveLearn
Control of Microparticles Through Hydrodynamic InteractionsThe controllability of passive microparticles that are advected with the fluid flow generated by an actively controlled one is studied. The particles are assumed to be suspended in a viscous fluid…Henry Shum, Marta Zoppello, Michael Astwood et al.·Jun 7, 2024SaveLearn
The wind-shade roughness model for turbulent wall-bounded flowsTo aid in prediction of turbulent boundary layer flows over rough surfaces, a new model is proposed to estimate hydrodynamic roughness based solely on geometric surface information. The model is…Charles Meneveau, Nicholas Hutchins, Daniel Chung·Jun 7, 2024SaveLearn
Generative diffusion models for synthetic trajectories of heavy and light particles in turbulenceHeavy and light particles are commonly found in many natural phenomena and industrial processes, such as suspensions of bubbles, dust, and droplets in incompressible turbulent flows. Based on a…Tianyi Li, Samuele Tommasi, Michele Buzzicotti et al.·Jun 7, 2024SaveLearn
Quantum Computing for nonlinear differential equations and turbulenceA large spectrum of problems in classical physics and engineering, such as turbulence, is governed by nonlinear differential equations, which typically require high-performance computing to be…Felix Tennie, Sylvain Laizet, Seth Lloyd et al.·Jun 7, 2024SaveLearn
Regular sloshing modes in irregular cavities using metabathymetryWe present a comprehensive investigation, combining numerical simulations and experimental measurements, into the manipulation of water waves and resonance characteristics within closed cavities…Adam Anglart, Agnès Maurel, Philippe Petitjeans et al.·Jun 7, 2024SaveLearn
Physically consistent immersed boundary method: a framework for predicting hydrodynamic forces on particles with coarse meshesIn the present paper, a fluid-particle coupling method is directly derived from the Navier-Stokes equations (NSE) by applying the concept of volume-filtering, yielding a physically consistent…Max Hausmann, Hani Elmestikawy, Berend van Wachem·Jun 7, 2024SaveLearn
Mechanism of instability in non-uniform dusty channel flowParticles in pressure-driven channel flow are often inhomogeneously distributed. Two modes of low-Reynolds number instability, absent in Poiseuille flow of clean fluid, are created by inhomogeneous…Anup Kumar, Rama Govindarajan·Jun 7, 2024SaveLearn
Pulse propagation in the quiescent environment during direct numerical simulation of Rayleigh-Taylor instability: Solution by Bromwich contour integral methodIn: "Three-dimensional direct numerical simulation (DNS) of Rayleigh-Taylor instability (RTI) trigerred by acoustic excitation -- Sengupta et al. 34,054108 (2022)" the receptivity of RTI…Tapan K. Sengupta, Bhavna Joshi, Prasannabalaji Sundaram·Jun 7, 2024SaveLearn
Modulation instability in dispersive parity-broken systemsThis work explores the interplay between dispersive parity breaking and non-linearity in two contrasting continuous dynamical systems that exhibit Modulation Instability (MI). We begin by examining…Sudheesh Srivastava, Gustavo M. Monteiro, Sriram Ganeshan·Jun 7, 2024SaveLearn
The Evolution of Turbulence Producing Motions in the ABL Across a Natural Roughness TransitionLandforms such as sand dunes act as roughness elements to Atmospheric Boundary Layer (ABL) flows, triggering the development of new scales of turbulent motions. These turbulent motions, in turn,…Justin P. Cooke, Douglas J. Jerolmack, George I. Park·Jun 7, 2024SaveLearn
A unified framework for prediction of vortex-induced vibration based on the nonlinear data-driven identification of general wake oscillator modelingIn this paper, we present novel identification strategies to develop a unified framework for vortex-induced vibration (VIV) prediction based on the general semi-empirical wake oscillator. Greybox…Zhi Cheng, Fue-Sang Lien, Earl H. Dowell·Jun 6, 2024SaveLearn
Early-time resonances in the three-dimensional wall-bounded axisymmetric Euler and related equationsWe investigate the complex-time analytic structure of solutions of the 3D-axisymmetric, wall-bounded, incompressible Euler equations, by starting with the initial data proposed in Luo and Hou (2014),…Sai Swetha Venkata Kolluru, Rahul Pandit·Jun 6, 2024SaveLearn
Microscale physics and macroscale convective heat transfer in supercritical fluidsDriven by fundamental thermodynamic efficiency considerations, an emerging trend in the energy and propulsion systems is that the working fluid operates at a pressure above the critical pressure.…Zhouhang Li, Daniel T. Banuti, Jie Ren et al.·Jun 6, 2024SaveLearn
An investigation of anisotropy in the bubbly turbulent flow via direct numerical simulationsThis study explores the dynamics of dispersed bubbly turbulent flow in a channel using interface-resolved direct numerical simulation (DNS) with an efficient Coupled Level-Set Volume-of-Fluid…Xuanwei Zhang, Yanchao Liu, Wenkang Wang et al.·Jun 6, 2024SaveLearn
Impact of ageostrophic dynamics on the predictability of Lagrangian trajectories in surface-ocean turbulenceTurbulent flows at the surface of the ocean deviate from geostrophic equilibrium on scales smaller than about 10 km. These scales are associated with important vertical transport of active and…Michael Maalouly, Guillaume Lapeyre, Stefano Berti·Jun 6, 2024SaveLearn