Beyond the Cassie-Baxter Model: New Insights for Predicting Imbibition in Complex SystemsWe revisit the classical problem of liquid imbibition in a single pore with spatially varying wettability. Starting from the Lucas-Washburn equation, we derive analytical solutions for the imbibition…Mathis Fricke, Lisanne Gossel, Joel De Coninck·Jan 17, 2025SaveLearn
Numerical study of vortices within a background vortexThis study aims to exploit the analogy of vortex dynamics in a 2D ideal fluid and 2D non-neutral plasma. Numerical simulations using contour dynamics with adaptive refinement are conducted to study…Ling Xu·Jan 17, 2025SaveLearn
Improved phase field model for two-phase incompressible flows: Sharp interface limit, universal mobility and surface tension calculationIn this paper, we propose an improved phase field model for interface capturing in simulating two-phase incompressible flows. The model incorporates a second-order diffusion term, which utilizes a…Jing-Wei Chen, Chun-Yu Zhang, Hao-Ran Liu et al.·Jan 17, 2025SaveLearn
Turbulent scaling law in Ogata K\=orin's Red and White Plum BlossomsStylized turbulent swirls depicted in artworks are often analyzed with the modern tools for real turbulent flows such as the power spectrum and the structure function. Motivated by the recent study…Takeshi Matsumoto·Jan 17, 2025SaveLearn
Learning the Optimal Hydrodynamic ClosureWe present the optimal hydrodynamic model for rarefied gas flows relative to a given kinetic model by combining the recent theory of slow spectral closure with machine learning techniques. We learn…Florian Kogelbauer, Candi Zheng, Ilya Karlin·Jan 16, 2025SaveLearn
Undulatory underwater swimming: Linking vortex dynamics, thrust, and wake structure with a biorobotic fishFlapping-based propulsive systems rely on fluid-structure interactions to produce thrust. At intermediate and high Reynolds numbers, vortex formation and organization in the wake of such systems are…Christophe Brouzet, Christophe Raufaste, Médéric Argentina·Jan 16, 2025SaveLearn
Uncertainty in Elastic TurbulenceElastic turbulence can lead to to increased flow resistance, mixing and heat transfer. Its control -- either suppression or promotion -- has significant potential, and there is a concerted ongoing…Jack R. C. King, Robert J. Poole, Cláudio P. Fonte et al.·Jan 16, 2025SaveLearn
A novel simulation approach for concentration-driven evaporation in capillariesLong liquid retention times in industrial gaps, due to capillary effects, significantly affect product lifetime by facilitating corrosion on solid surfaces. Concentration-driven evaporation plays a…Phil Namesnik, Alexander Eifert, Anja Lippert et al.·Jan 16, 2025SaveLearn
Hydrodynamically Beneficial School Configurations in Carangiform Swimmers: Insights from a Flow-Physics Informed ModelResearchers have long debated which spatial arrangements and swimming synchronizations are beneficial for the hydrodynamic performance of fish in schools. In our previous work (Seo and Mittal,…Ji Zhou, Jung-Hee Seo, Rajat Mittal·Jan 16, 2025SaveLearn
A numerical modeling of wave-inclined slats interaction for particle methodsMPS-VG, a Virtual Grating (VG) model for the Lagrangian mesh-free Moving Particle Semi-implicit (MPS) method is proposed for replacing conventional particle-based solid modeling of gratings with a…Lucas Soares Pereira, Rubens Augusto Amaro Junior, Liang-Yee Cheng et al.·Jan 15, 2025SaveLearn
Optimising branched fluidic networks: A unifying approach including laminar and turbulent flows, rough walls, and non-Newtonian fluidsPower minimisation in branched fluidic networks has gained significant attention in biology and engineering. The optimal network is defined by channel radii that minimise the sum of viscous…Jan Siemen Smink, Rob Hagmeijer, Cornelis Henricus Venner et al.·Jan 15, 2025SaveLearn
On idealized models of turbulent condensation in cloudsVarious microphysical models attempt to explain the occurrence of broad droplet size distributions (DSD) in clouds through approximate representations of the stochastic droplet growth by condensation…G. C. Abade·Jan 15, 2025SaveLearn
Helicity effect on turbulent passive and active scalar diffusivitiesTurbulent flows are known to produce enhanced effective magnetic and passive scalar diffusivities, which can fairly accurately be determined with numerical methods. It is now known that, if the flow…Axel Brandenburg, Petri J. Käpylä, Igor Rogachevskii et al.·Jan 15, 2025SaveLearn
Mutual Interactions Between a Thin Flexible Panel and Supersonic FlowsThis paper discusses the mutual interactions between a thin flexible aluminum plate and supersonic flow using two-dimensional (2D) numerical simulations. Calculations are performed using an open…Himakar Ganti, Luis Bravo, Anindya Ghosal et al.·Jan 15, 2025SaveLearn
Optimized CFD modelling and validation of radiation section of an industrial top-fired steam methane reforming furnaceThe present study proposes an optimized computational fluid dynamics (CFD) modelling framework to provide a complete and accurate representation of combustion and heat transfer phenomena in the…Mustafa Tutar, Cihat Emre Üstün, Jose Miguel Campillo-Robles et al.·Jan 15, 2025SaveLearn
Effects of pressure gradient histories on skin friction and mean flow of high Reynolds number turbulent boundary layers over smooth and rough wallsExperiments are conducted over smooth and rough walls to explore the influence of pressure gradient histories on skin friction and mean flow of turbulent boundary layers. Different pressure gradient…Thomas Preskett, Marco Virgilio, Prateek Jaiswal et al.·Jan 15, 2025SaveLearn
Analytical and Numerical Study of a Convection-Diffusion-Reaction-Source Problem in Multilayered MaterialsIn this work, a thermal energy transfer problem in a one-dimensional multilayer body is theoretically analyzed, considering diffusion, advection, internal heat generation or loss linearly dependent…Guillermo Federico Umbricht, Domingo Alberto Tarzia, Diana Rubio·Jan 14, 2025SaveLearn
Duty-cycle actuation for drag reduction of deep dynamic stall: Insights from linear stability analysisA flow control framework based on linear stability analysis is proposed focusing on reducing the aerodynamic drag due to dynamic stall through a finite-window temporal actuation. The methodology is…Lucas Feitosa de Souza, William Roberto Wolf, Maryam Safari et al.·Jan 14, 2025SaveLearn
Quantum vortices leave a macroscopic signature in the normal fluidRecent work has highlighted the remarkable properties of quantum turbulence in superfluid helium II, consisting of a disordered tangle of quantised vortex lines which interact with each other and…Luca Galantucci, Giorgio Krstulovic, Carlo F Barenghi·Jan 14, 2025SaveLearn
Coiling instability in the kitchenManipulation of viscous liquids is an essential kitchen activity - from pouring golden syrup onto a pancake to decorating a cake with whipped cream frosting, from streaming ketchup on top of French…Andrzej Herczyński, Maciej Lisicki·Jan 14, 2025SaveLearn
A geometric formulation of the Shepard renormalization factorThe correct treatment of boundary conditions is a key step in the development of the SPH method. The SPH community has to face several challenges in this regard - in particular, a primordial aspect…J Calderon-Sanchez, JL Cercos-Pita, D Duque·Jan 14, 2025SaveLearn
Detection and analysis of synchronization routes in an axially forced globally unstable jet using recurrence quantificationQuasiperiodicity, a partially synchronous state that precedes the onset of forced synchronization in hydrodynamic systems, exhibits distinct geometrical patterns based on the specific route to…Abhijit K. Kushwaha, Meenatchidevi Murugesan, Nicholas A. Worth et al.·Jan 14, 2025SaveLearn
Modelling the transition from shear-driven turbulence to convective turbulence in a vertical heated pipeHeated pipe flow is widely used in thermal engineering applications, but the presence of buoyancy force can cause intermittency, or multiple flow states at the same parameter values. Such changes in…Shijun Chu, Elena Marensi, Ashley P. Willis·Jan 14, 2025SaveLearn
Flow-field analysis and performance assessment of rotating detonation engines under different number of discrete inlet nozzlesThis study explores in depth rotating detonation engines (RDEs) fueled by premixed stoichiometric hydrogen/air mixtures through two-dimensional numerical simulations including a detailed chemical…Sebastian Valencia, Andres Mendiburu, Luis Bravo et al.·Jan 14, 2025SaveLearn
An Empirical Wall-Pressure Spectrum Model for Aeroacoustic Predictions Based on Symbolic RegressionFast-turn around methods to predict airfoil trailing-edge noise are crucial for incorporating noise limitations into design optimization loops of several applications. Among these aeroacoustic…Laura Botero Bolívar, David Huergo, Fernanda L. dos Santos et al.·Jan 14, 2025SaveLearn