Bifurcation in narrow gap spherical Couette flowIncompressible Navier-Stokes equations in the spherical coordinates are solved using a pseudo-spectral method to simulate the problem of spherical Couette flow. The flow is investigated for a narrow…Ananthu J. P., Manjul Sharma, Sameen A. et al.·Oct 9, 2024SaveLearn
Flexible floaters align with the direction of wave propagationWe investigate the slow, second order motion of thin flexible floating strips drifting in surface gravity waves. We introduce a diffractionless model (Froude-Krylov approximation) that neglects…Basile Dhote, Frederic Moisy, Wietze Herreman·Oct 9, 2024SaveLearn
Dynamics of contaminant flow through porous media containing random adsorbersMany porous media are mixtures of inert and reactive materials, manifesting spatio-chemical heterogeneity. We study the evolution of scalar transport in a chemically heterogeneous material that…Kaj Pettersson, Albin Nordlander, Angela Sasic Kalagasidis et al.·Oct 9, 2024SaveLearn
Does small-scale turbulence matter for ice growth in mixed-phase clouds?Representing the glaciation of mixed-phase clouds in terms of the Wegener-Bergeron-Findeisen process is a challenge for many weather and climate models, which tend to overestimate this process…G. Sarnitsky, G. Sardina, G. Svensson et al.·Oct 9, 2024SaveLearn
Freezing dynamics of wetting droplet under a uniform electric fieldElectrofreezing is a powerful technique that employs the electric field to control and enhance the freezing process. In this work, a phase-field-based lattice Boltzmann (LB) method is developed to…Jiangxu Huang, Hanqing Li, Jiaqi Che et al.·Oct 9, 2024SaveLearn
Experimental Characterization of Non-Isothermal Sloshing in MicrogravitySloshing of cryogenic liquid propellants can significantly impact a spacecraft's mission safety and performance by unpredictably altering the center of mass and producing large pressure fluctuations…Francisco Monteiro, Pedro Marques, Alessia Simonini et al.·Oct 9, 2024SaveLearn
Open-Source Parametric Airfoils to Study Geometric Effects on BuffetRecent research into buffet in the transonic flow regime has been focused on a limited number of proprietary airfoil geometries and has mainly considered parametric variations in Mach number and…Markus Zauner, David J. Lusher, Pradeep Moise et al.·Oct 8, 2024SaveLearn
A novel data-driven method for augmenting turbulence modeling for unsteady cavitating flowsCavitation is a highly turbulent, multi-phase flow phenomenon that manifests in the form of vapor cavities as a result of a sudden drop in the liquid pressure. The phenomenon has been observed as…Dhruv Apte, Nassim Razaaly, Yuan Fang et al.·Oct 8, 2024SaveLearn
Investigation of rotational augmentation mechanisms on wind turbine blade sections based on Quasi-3D simulationsRotation has been recognized for its ability to decrease the extent of separate flow regions on the inner sections ofhorizontal-axis wind turbine blades. This alteration is often linked to…Pedro Rodrigues, Elmer Gennaro, Daniel Souza·Oct 8, 2024SaveLearn
Divergence cleaning for weakly compressible smoothed particle hydrodynamicsThis paper presents a divergence cleaning formulation for the velocity in the weakly compressible smoothed particle hydrodynamics (SPH) scheme. The proposed hyperbolic/parabolic divergence cleaning,…Georgios Fourtakas, Renato Vacondio, Benedict D. Rogers·Oct 8, 2024SaveLearn
Evolution of vortex filaments and reconnections in the Gross-Pitaevski equation and its approximation by the binormal flow equationThe evolution of a vortex line following the binormal flow equation (i.e. with a velocity proportional to the local curvature in the direction of the binormal vector) has been postulated as an…M. Arrayás, M. A. Fontelos, M. d. M. González et al.·Oct 8, 2024SaveLearn
A meshless geometric conservation weighted least square method for solving the shallow water equationsThe shallow water equations are numerically solved to simulate free surface flows. The convective flux terms in the shallow water equations need to be discretized using a Riemann solver to capture…D. Satyaprasad, Soumendra Nath Kuiry, S. Sundar·Oct 8, 2024SaveLearn
Aspect-ratio-dependent heat transport by baroclinic acoustic streamingStanding acoustic waves have been known to generate Eulerian time-mean 'streaming' flows at least since the seminal investigation of Lord Rayleigh in the 1880s. Nevertheless, a recent body of…Jacques Abdul Massih, Remil Mushthaq, Guillaume Michel et al.·Oct 8, 2024SaveLearn
MSPINN: Multiple scale method integrated physics-informed neural networks for reconstructing transient natural convectionThis study employs physics-informed neural networks (PINNs) to reconstruct multiple flow fields in a transient natural convection system solely based on instantaneous temperature data at an arbitrary…Nagahiro Ohashi, Nam Phuong Nguyen, Leslie K. Hwang et al.·Oct 7, 2024SaveLearn
Self-similarity and growth of non-linear magnetic Rayleigh-Taylor instability -- Role of the magnetic field strengthThe non-linear regime of the magnetic Rayleigh-Taylor instability (MRTI) has been studied in the context of several laboratory and astrophysical systems. Yet, several fundamental aspects remain…Manohar Teja Kalluri, Andrew Hillier·Oct 7, 2024SaveLearn
Simulation of the high Mach number motion for bubble collapse in a compressible Euler fluid using BasiliskWe examine an extreme case of experimentally realizable sonoluminescence, where spherical cavities have an initial radius that is 10 to 20 times their ambient radius and change their radius by a…Daniels Krimans, Steven J. Ruuth, Seth Putterman·Oct 7, 2024SaveLearn
Airfoil tonal noise reduction by roughness elements Part I -- Experimental investigationLaminar separation bubbles around airfoils lead to the growth of instability waves, which enhances to acoustic scattering at the trailing-edge, forming a feedback loop that produces to tonal noise.…Elías Alva, Zhenyang Yuan, Tiago B. Araújo et al.·Oct 7, 2024SaveLearn
Airfoil Tonal Noise Reduction by Roughness Elements. Part II -- Direct SimulationsIn a combined experimental and numerical effort we investigate airfoil tonal noise generation and reduction. The means of noise control are streak generators in form of cylindrical roughness…Zhenyang Yuan, Elías Alva, Tiago B. de Araújo et al.·Oct 7, 2024SaveLearn
Sail dynamics during tacking maneuversWe study the dynamics of sail membranes during a tacking maneuver, when the sail angle of attack is reversed in order to sail upwind. In successful tacking the sail flips to the mirror-image shape,…Christiana Mavroyiakoumou, Silas Alben·Oct 7, 2024SaveLearn
The interplay between topography and contact line pinning mechanisms on flat and superhydrophobic surfacesWettability of a surface depends on both surface chemistry and topography. To move a three-phase contact line, a de-pinning force needs to be applied, which is of practical importance in various…Mahya Meyari, Camelia Dunare, Khellil Sefiane et al.·Oct 7, 2024SaveLearn
Linear instability in thermally-stratified quasi-Keplerian flowsQuasi-Keplerian flow, a special regime of Taylor-Couette co-rotating flow, is of great astrophysical interest for studying angular momentum transport in accretion disks. The well-known…Dongdong Wan, Rikhi Bose, Mengqi Zhang et al.·Oct 7, 2024SaveLearn
Liquid-Droplet Coalescence: CNN-based Reconstruction of Flow Fields from Concentration FieldsLiquid-droplet coalescence and the mergers of liquid lenses are problems of great practical and theoretical interest in fluid dynamics and the statistical mechanics of multi-phase flows. During such…Vasanth Kumar Babu, Nadia Bihari Padhan, Rahul Pandit·Oct 6, 2024SaveLearn
Spatio-Temporal Instabilities of Blood Flow in a Model Capillary NetworkWe present experimental evidence of multiple blood flow configurations in a relatively simple microfluidic network under constant inlet conditions. We provide evidence of multistability and unsteady…Mathieu Alonzo, Nathaniel J. Karst, Thomas Podgorski et al.·Oct 5, 2024SaveLearn
Lighthill's theory of sound generation in a non-isothermal mediumLighthill's theory of sound generation was developed to calculate acoustic radiation from a narrow region of turbulent flow embedded in an infinite homogeneous fluid. The theory is extended to…Swati Routh, Z. E. Musielak·Oct 5, 2024SaveLearn
Retraction of levitating dropsThis theoretical and numerical study focuses on the physical mechanisms driving the retraction of levitating Newtonian micrometric/millimetric/centimetric drops surrounded by air and under…Kindness Isukwem, Elie Hachem, Anselmo Pereira·Oct 5, 2024SaveLearn