Universal behavior in traveling wave electroosmosisTraveling wave charges lying on the insulating walls of an electrolyte-filled capillary, give rise to oscillatory modes which vanish when averaged over the period of oscillation. They also give rise…A. Shrestha, E. Kirkinis, M. Olvera de la Cruz·Jan 27, 2024SaveLearn
Effects of non-condensable gas on laser-induced cavitation bubblesThis study presents experimental observations of single laser-induced cavitation bubbles collapsing in water with different levels of air saturation. The average trends of the bubble size reveal a…Davide Bernardo Preso, Daniel Fuster, Armand Baptiste Sieber et al.·Jan 27, 2024SaveLearn
Resolvent analysis for predicting energetic structures in the far wake of a wind turbineA thorough understanding of the energetic flow structures that form in the far wake of a wind turbine is essential for accurate turbine wake modeling and wind farm performance estimation. We use…Dachuan Feng, Vikrant Gupta, Larry K. B. Li et al.·Jan 27, 2024SaveLearn
Numerical simulation of rarefied supersonic flows using a fourth-order maximum-entropy moment method with interpolative closureMaximum-entropy moment methods allow for the modelling of gases from the continuum regime to strongly rarefied conditions. The development of approximated solutions to the entropy maximization…Stefano Boccelli, Willem Kaufmann, Thierry E. Magin et al.·Jan 26, 2024SaveLearn
Experimental evidence on tonal noise generation and its control in tip-leakage flowsThe present study is first to provide experimental evidence of tonal noise and acoustic feedback by a stationary airfoil with a tip-gap placed between two side plates. Tones are linked to an…Prateek Jaiswal, Stephane Moreau·Jan 26, 2024SaveLearn
Parameterized Ekman boundary layers on the tilted f-planeRotating convection is considered on the tilted f-plane where gravity and rotation are not aligned. For sufficiently large rotation rates, , the Taylor-Proudman effect results in the…Sara Tro, Ian Grooms, Keith Julien·Jan 26, 2024SaveLearn
Hysteresis and ribbons in Taylor-Couette flow of a semidilute non-colloidal suspensionIn this study, we numerically investigate hysteretic behaviors of secondary bifurcations in the Taylor-Couette flow of a semidilute, neutrally buoyant, and noncolloidal suspension. We consider a…Changwoo Kang, Michael F. Schatz, Parisa Mirbod·Jan 26, 2024SaveLearn
Rate-limiting factors in thin-film evaporative heat transfer processesIn this paper, we present a theoretical study aimed at investigating the rate-limiting factors in thin-film evaporative heat transfer processes, considering the finite-rate evaporation kinetics. The…H. Zhao, R. Poole, Z. Zhou·Jan 26, 2024SaveLearn
Quasi-Linear Homogenization for Large-Inertia Laminar Transport across Permeable MembranesPorous membranes are thin solid structures that allow the flow to pass through their tiny openings, called pores. Flow inertia may play a significant role in several filtration flows of natural and…Kevin Wittkowski, Alberto Ponte, Pier Giuseppe Ledda et al.·Jan 26, 2024SaveLearn
Lagrangian irreversibility and energy exchanges in rotating-stratified turbulent flowsTurbulence in stratified and rotating turbulent flows is characterized by an interplay between waves and eddies, resulting in continuous exchanges between potential and kinetic energy. Here, we study…Sebastian Gallon, Alessandro Sozza, Fabio Feraco et al.·Jan 26, 2024SaveLearn
Inviscid stability of compressible flows past compliant surfacesThe classical theorems of inviscid stability have been extended for compressible flows past compliant surfaces. We consider normal modes imposed on a plane parallel compressible flow past compliant…Mandeep Deka, Gaurav Tomar, Viswanathan Kumaran·Jan 26, 2024SaveLearn
A deep neural network physics-based reduced order model for dynamic stallA physics-based machine learning framework is developed to compute the aerodynamic forces and moment for a pitching NACA0012 airfoil incurring in light and deep dynamic stall. Three deep neural…Giacomo Baldan, Alberto Guardone·Jan 26, 2024SaveLearn
Effect of Tripping and Domain-Width on Transonic Buffet on Periodic NASA-CRM AirfoilsTransonic buffet is an instability characterized by shock-oscillations and separated boundary-layers. High-fidelity simulations have typically been limited to narrow domains to be computationally…David J. Lusher, Andrea Sansica, Atsushi Hashimoto·Jan 26, 2024SaveLearn
Momentum, energy and vorticity balances in deep-water surface gravity wavesThe particle trajectories in irrotational, incompressible and inviscid deep-water surface gravity waves are open, leading to a net drift in the direction of wave propagation commonly referred to as…Aidan Blaser, Raphaël Benamran, A. Bia Villas Bôas et al.·Jan 25, 2024SaveLearn
Temperature Separation in a Vortex Tube and convection driven by vorticityWhy the temperature gradient in the vortex tube deviates significantly from the adiabatic gradient is a very important but unresolved issue in vortex tube research. In compressible fluids, the…Haibin Chen, Rong Wu·Jan 25, 2024SaveLearn
Vapor compression and energy dissipation in a collapsing laser-induced bubbleThe composition of the gaseous phase of cavitation bubbles and its role on the collapse remains to date poorly understood. In this work, experiments of single cavitation bubbles in aqueous ammonia…Davide Bernardo Preso, Daniel Fuster, Armand Baptiste Sieber et al.·Jan 25, 2024SaveLearn
Spontaneous stochasticity amplifies even thermal noise to the largest scales of turbulence in a few eddy turnover timesHow predictable are turbulent flows? Here we use theoretical estimates and shell model simulations to argue that Eulerian spontaneous stochasticity, a manifestation of the non-uniqueness of the…Dmytro Bandak, Alexei Mailybaev, Gregory L. Eyink et al.·Jan 25, 2024SaveLearn
Asymptotic solutions for self-similarly expanding fault slip induced by fluid injection at constant rateWe examine the circular, self-similar expansion of frictional rupture due to fluid injected at a constant rate. Fluid migrates within a thin permeable layer parallel to and containing the fault…Robert C. Viesca·Jan 24, 2024SaveLearn
A Westervelt equation for acoustic wave propagation through weakly stratified, arbitrary Mach number atmospheresNonlinear distortion of infrasonic waves through atmospheres up to thermospheric altitudes govern large-range ground-level observations of explosive noise sources, causing large differences between…Liam J. Tope, Jae Wook Kim, Peter Spence·Jan 24, 2024SaveLearn
On the self-similarity of unbounded viscous Marangoni flowsThe Marangoni flow induced by an insoluble surfactant on a fluid-fluid interface is a fundamental problem investigated extensively due to its implications in colloid science, biology, the…Fernando Temprano-Coleto, Howard A. Stone·Jan 24, 2024SaveLearn
Drag reduction utilizing a wall-attached ferrofluid film in turbulent channel flowThis study explores the application of a wall-attached ferrofluid film to decrease skin friction drag in turbulent channel flow. We conduct experiments using water as a working fluid in a turbulent…Marius M. Neamtu-Halic, Markus Holzner, Laura M. Stancanelli·Jan 24, 2024SaveLearn
Accuracy and Performance Evaluation of Low Density Internal and External Flow Predictions using CFD and DSMCThe Direct Simulation Monte Carlo (DSMC) method was widely used to simulate low density gas flows with large Knudsen numbers. However, DSMC encounters limitations in the regime of lower Knudsen…Surya Kiran Peravali, Vahid Jafari, Amit K. Samanta et al.·Jan 24, 2024SaveLearn
A Vortex Dynamic Equation for Sediment TransportThis work presents a new vortex dynamic equation for quasi-geostrophic flows over strongly variable sediment bottoms. The equation considers erosion/deposition exchanges near the bottom and the…Ngatcha Ndengna Arno Roland·Jan 24, 2024SaveLearn
Self-similar solution for laminar bubbly flow evolving from a vertical plateThe development of a bubble plume from a vertical gas-evolving electrode is driven by buoyancy and hydrodynamic bubble dispersion. This canonical fluid mechanics problem is relevant for both thermal…N. Valle, J. W. Haverkort·Jan 23, 2024SaveLearn
Emergence of dissipation and hysteresis from interactions among reversible, non-dissipative units: The case of fluid-fluid interfacesWe examine the nonequilibrium nature of two-phase fluid displacements in a quasi-two-dimensional medium (a model open fracture), in the presence of localized constrictions ("defects"), from a…Ran Holtzman, Marco Dentz, Marcel Moura et al.·Jan 23, 2024SaveLearn