Energy Flux Decomposition in Magnetohydrodynamic TurbulenceIn hydrodynamic (HD) turbulence an exact decomposition of the energy flux across scales has been derived that identifies the contributions associated with vortex stretching and strain…D. Capocci, P. Johnson, S. Oughton et al.·Feb 15, 2024SaveLearn
Collision efficiency of droplets across diffusive, electrostatic and inertial regimesRain drops form in clouds by collision of submillimetric droplets falling under gravity: larger drops fall faster than smaller ones and collect them on their path. The puzzling stability of fogs and…Florian Poydenot, Bruno Andreotti·Feb 15, 2024SaveLearn
Geometric theory of perturbation dynamics around non-equilibrium fluid flowsThe present work investigates the evolution of linear perturbations of time-dependent ideal fluid flows with advected quantities, expressed in terms of the second order variations of the action…Darryl D. Holm, Ruiao Hu, Oliver D. Street·Feb 15, 2024SaveLearn
One-shot omnidirectional pressure integration through matrix inversionIn this work, we present a method to perform 2D and 3D omnidirectional pressure integration from velocity measurements with a single-iteration matrix inversion approach. This work builds upon our…Fernando Zigunov, John Charonko·Feb 15, 2024SaveLearn
Modeling considerations about a microchannel heat sinkMany computational studies on hotspot microfluidic cooling devices found in the literature rely on simplified assumptions and conventions that do not capture the full complexity of the conjugate…L. G. Chej, A. G. Monastra, M. F. Carusela·Feb 15, 2024SaveLearn
Dissipation of nonlinear acoustic waves in thermoviscous poresWe derive a nonlinear acoustic wave propagation model for analysing the thermoviscous dissipation in narrow pores with wavy walls. As the nonlinear waves propagate in the thermoviscous pores, the…Krishna Sahithi, Prateek Gupta·Feb 15, 2024SaveLearn
Propulsion of a three-sphere micro-robot in a porous mediumMicroorganisms and synthetic microswimmers often encounter complex environments consisting of networks of obstacles embedded into viscous fluids. Such settings include biological media, such as mucus…Chih-Tang Liao, Andrew Lemus, Ali Gürbüz et al.·Feb 15, 2024SaveLearn
Eulerian Formulation of the Tensor-Based Morphology Equations for Strain-Based Blood Damage ModelingThe development of blood-handling medical devices, such as ventricular assist devices, requires the analysis of their biocompatibility. Among other aspects, this includes hemolysis, i.e., red blood…Nico Dirkes, Fabian Key, Marek Behr·Feb 14, 2024SaveLearn
Phase transition to turbulence via moving frontsDirected percolation (DP), a universality class of continuous phase transitions, has recently been established as a possible route to turbulence in subcritical wall-bounded flows. In canonical…Sébastien Gomé, Aliénor Rivière, Laurette S. Tuckerman et al.·Feb 13, 2024SaveLearn
On the Role of the Wall Curvature in the Development of Flows Reattached over an Airfoil through Unsteady BlowingAn array of twelve circular-orifice synthetic jet actuators (SJAs) was used to provide the unsteady forcing required for flow separation control over a National Advisory Committee for Aeronautics…Ali Shirinzad, Kecheng Xu, Pierre Edward Sullivan·Feb 13, 2024SaveLearn
Data-driven modeling of the regular and chaotic dynamics of an inverted flag from experimentsWe use video footage of a water tunnel experiment to construct a two-dimensional reduced-order model of the flapping dynamics of an inverted flag in uniform flow. The model is obtained as the reduced…Zhenwei Xu, Bálint Kaszás, Mattia Cenedese et al.·Feb 13, 2024SaveLearn
The discrete direct deconvolution model in the large eddy simulation of turbulenceThe discrete direct deconvolution model (D3M) is developed for the large-eddy simulation (LES) of turbulence. The D3M is a discrete approximation of previous direct deconvolution model studied by…Ning Chang, Zelong Yuan, Yunpeng Wang et al.·Feb 13, 2024SaveLearn
Breakup of liquid jets: Thermodynamic perspectivesBreakup of a liquid jet into a chain of droplets is common in nature and industry. Previous researchers developed profound mathematic and fluid dynamic models to address this breakup phenomenon…Fei Wang, Oleg Tschukin, Thomas Leisner et al.·Feb 13, 2024SaveLearn
Direct numerical simulation of a thermal turbulent boundary layer: an analogy to simulate bushfires and a testbed for artificial intelligence remote sensing of bushfire propagationDirect numerical simulation of a turbulent thermal boundary layer (TTBL) can perform the role of an analogy to simulate bushfires that can serve as a testbed for artificial intelligence (AI) enhanced…Julio Soria, Shahram Karami, Callum Atkinson et al.·Feb 13, 2024SaveLearn
The Dirac-Delta Rogue WaveThis paper presents a double spatio-temporal localized Dirac-delta solution for the linear wave equation. The solution arises from the interference of sinusoidal waves with frequencies that vary as a…Miguel C. N. Fiolhais, Andrea Ferroglia·Feb 12, 2024SaveLearn
Physics informed data-driven near-wall modelling for lattice Boltzmann simulation of high Reynolds number turbulent flowsData-driven approaches offer novel opportunities for improving the performance of turbulent flow simulations, which are critical to wide-ranging applications from wind farms and aerodynamic designs…Xiao Xue, Shuo Wang, Hua-Dong Yao et al.·Feb 12, 2024SaveLearn
Performance enhancement of electrocatalytic hydrogen evolution through coalescence-induced bubble dynamicsThe evolution of electrogenerated gas bubbles during water electrolysis can significantly hamper the overall process efficiency. Promoting the departure of electrochemically generated bubbles during…Aleksandr Bashkatov, Sunghak Park, Çayan Demirkır et al.·Feb 12, 2024SaveLearn
Introducing Novel Planar Micromixers with Pillars and Gaps and Studying the Impact of Various Geometric Parameters on the Efficiency of MicromixersChemical bioreactions play a significant role in many of the microfluidic devices, and their applications in biomedical science have seen substantial growth. Given that effective mixing is vital for…Ali Kheirkhah Barzoki·Feb 12, 2024SaveLearn
Anomalous scaling in shell model turbulenceShell model turbulence is a simplified mathematical framework that captures essential features of incompressible fluid turbulence such as the energy cascade, intermittency and anomalous scaling of…James Creswell, Viatcheslav Mukhanov, Yaron Oz·Feb 12, 2024SaveLearn
Transient growth of a wake vortex and its initiation via inertial particlesThe transient dynamics of a wake vortex, modelled as a strong swirling q-vortex, are investigated with a focus on optimal transient growth driven by continuous eigenmodes associated with continuous…Sangjoon Lee, Philip S. Marcus·Feb 12, 2024SaveLearn
Insights into Spatio-temporal dynamics during shock -- droplet flame interactionThe study comprehensively investigates the response of a combusting droplet during its interaction with a high-speed transient flow that is imposed by a coaxially propagating blast wave. The blast…Gautham Vadlamudi, Akhil Aravind, Saini Jatin Rao et al.·Feb 12, 2024SaveLearn
Linear Stability Analysis of Oblique Couette-Poiseuille flowsWe perform a detailed numerical study of modal and non-modal stability in oblique Couette-Poiseuille profiles, which are among the simplest examples of three-dimensional boundary layers. Through a…Muhammad Abdullah, George Ilhwan Park·Feb 11, 2024SaveLearn
Unified Framework for Laser-induced Transient Bubble Dynamics within MicrochannelsOscillatory flow in confined spaces is central to understanding physiological flows and rational design of synthetic periodic-actuation based micromachines. Using theory and experiments on…Nagaraj Nagalingam, Vikram Korede, Daniel Irimia et al.·Feb 11, 2024SaveLearn
Self-induced transparency of long water waves over bathymetry: the dispersive shock mechanismDispersive shock waves (DSW) are a salient feature of long water waves often observed in tidal bores and tsunami/meteotsunami contexts. Their interaction with bathymetry is poorly understood. The…Alex. Sheremet, Victor I. Shrira·Feb 10, 2024SaveLearn
Convection and Stratification of Temperature and ConcentrationThe paper is devoted to the study of natural convection and the formation of delamination in an incompressible liquid due to convective laminar flows in a closed region heated from the side. Weak,…Alexey Fedyushkin·Feb 9, 2024SaveLearn