Excitation of non-modal perturbations in hypersonic boundary layers by free stream forcing. Part III: effects of wall temperature and nose bluntnessThis paper constitutes Part III of a series investigating the excitation of non-modal perturbations in hypersonic blunt-nose boundary layers. Based on the numerical shock-fitting harmonic linearised…Lei Zhao, Mingze Sun, Qinyang Song et al.·Oct 3, 2026SaveLearn
The ejected volume and drop statistics by bubble bursting in a sessile dropA bubble bursting inside a drop resting on a substrate can eject jet droplets where a bubble at a bath would not. We compute how much liquid it ejects and how the ejected droplets are distributed in…Alfonso M. Ganan-Calvo·Oct 3, 2026SaveLearn
Transparent 3D-printed flow cells for porous media studies with proof-of-concept on two-phase flow-reversal asymmetryPorous media experiments commonly rely on geometry-controlled and optically transparent experimental flow cells. Examples include studies of flow structure, solute mixing, multiphase flow, bacterial…Yann Dumay, J. Kevin Pierce, Julie Delhaie et al.·Oct 2, 2026SaveLearn
Unveiling the stress field in a flowing complex fluid with velocity and microstructure imagingThe stress in a flowing complex fluid such as a solution of polymers, surfactants and/or colloidal particles is a fundamental dynamic property of the material. It reflects the evolution of the fluid…Ashinth Mangesh, Manish Kumar, Matthew E. Helgeson et al.·Oct 2, 2026SaveLearn
Flow regime determines whether larval settlement hydrodynamics are governed by swimming speed or shapeLarval dispersal and settlement govern the replenishment of sessile marine populations and the assembly of benthic communities, yet how larval traits interact with near-surface flow structures to…Daniel Gysbers, Mark A. Levenstein, Gabriel Juarez·Oct 2, 2026SaveLearn
Development of a class of dynamic RANS closures for coarse-grained approaches to turbulenceThis work represents a crucial advancement in the development of a new class of turbulence closures conceived by Cimarelli et al. [1]. This new class of closures is based on the theoretical framework…Yves Tessier Urrecha, Giorgio Manzi, Filippo Cancellotti et al.·Oct 2, 2026SaveLearn
Radiometer effect on an infinitely thin circular diskThe radiometer effect is a self-thermophoretic phenomenon in which a thin body with a temperature difference between its two sides experiences a force in a rarefied gas. We numerically investigate…Takuma Tomita, Satoshi Taguchi, Tetsuro Tsuji·Oct 2, 2026SaveLearn
Linear stability of electroconvection in a viscoelastic electrolyte: polymeric-work pathways and eigenmode selectionElectroconvective (EC) instability near ion-selective surfaces plays a key role in electro-chemical transport beyond the diffusion-limited regime. While EC instability in Newtonian electrolytes has…Minyoung Kim·Oct 1, 2026SaveLearn
Leading-edge energy transfer governs flutter onset of a pitching finite wing in low-Reynolds number flowsFlutter onset is determined by the sign of the aerodynamic work on the structure, but cycle-integrated work does not reveal where this energy transfer originates. We perform direct numerical…Apoorva R. Parvathgari, Tulsi Ram Sahu, Aditya G. Nair·Oct 1, 2026SaveLearn
Spiral motion enables simultaneous homogenization and enhanced transport in granular pipe flowDensity waves in gravity-driven granular pipe flow reduce transport efficiency and produce large fluctuations in the local solid fraction. Helical wall textures suppress these instabilities but at…Wing To Ku, Patric Mueller, Thorsten Poeschel·Oct 1, 2026SaveLearn
Helical pipes homogenize particle transport in pneumatic conveyingPneumatic conveying at moderate gas velocities can result in strongly heterogeneous particle transport, with slow particles accumulating near the bottom of the pipe while faster particles are…Wing To Ku, Patric Mueller, Thorsten Poeschel·Oct 1, 2026SaveLearn
Rapid generation of relaxed centimeter-sized drops by capillary auto-ejectionMany microgravity experiments require centimeter-sized spherical liquid drops. In drop-tower experiments, only a few seconds of microgravity are available, so the drops must be generated and reach a…Patric Mueller, Kai Ihrig, Achim Sack et al.·Oct 1, 2026SaveLearn
Direct Modeling of Pore Size Evolution and Microcollapse in Lyophilization by Population BalanceIn the primary drying step of pharmaceutical freeze drying, it is well known that amorphous excipients are prone to "microcollapse" as they approach their glass transition temperature.…Isaac Stonewall Wheeler, Vivek Narsimhan, Alina A. Alexeenko et al.·Oct 1, 2026SaveLearn
On the transmission of floating-point perturbations in flow-dependent filter-width formulations in Large-Eddy SimulationHeterogeneous high--performance computing architectures expose numerical algorithms to perturbations arising from the non--associativity of floating--point arithmetic. In Large--Eddy Simulation…Valerio D'Alessandro, Alessio Piccolo, Matteo Falone et al.·Oct 1, 2026SaveLearn
Femtosecond laser-induced cavitation seeds liquid-jet breakup beyond the Rayleigh-Plateau stability limitThe Rayleigh-Plateau instability predicts that infinitesimal perturbations of a liquid jet grow only for kR < 1, with kR = 1 marking the classical stability boundary. Here, we show that…Sourabh Singh, Tamanna, S. Sree Harsha et al.·Oct 1, 2026SaveLearn
An unstructured finite-volume Helmholtz method with perfectly matched layers for heterogeneous two-phase acousticsThis paper presents a cell-centred unstructured finite-volume method for time-harmonic two-phase acoustics. A volume-fraction representation supplies density and acoustic compressibility. Face…Chuanchao Xu, Jun Liu, Jan Helge Dörsam et al.·Oct 1, 2026SaveLearn
Total Collision Energy model for surface processes in the DSMC methodThe total collision energy (TCE) approach originally developed for taking into account gas-phase chemistry in the direct simulation Monte Carlo method is applied to surface chemistry modeling. In the…Yevgeniy A. Bondar, Alexandra N. Molchanova·Oct 1, 2026SaveLearn
Flow separation and turbulence production over trapezoidal protrusionsThe influence of rear-face inclination on turbulence around a surface-mounted protrusion depends on the separated flow approaching its trailing edge. This dependence is examined experimentally using…Shahar Zuckerman, Jibu Tom Jose, Ori Levi et al.·Oct 1, 2026SaveLearn
A conservative micro-continuum-cellular automaton method for multispecies biofilm dynamics in complex flowsWe develop a conservative micro-continuum-cellular automaton method for simulating multispecies biofilm dynamics in complex flows. The proposed method couples the Darcy-Brinkman-Stokes equations,…Soyoung Kim, Yinuo Noah Yao·Oct 1, 2026SaveLearn
Impact of bubble nucleation on the functioning of the pulsating heat pipe: numerical simulation studyIn this communication, we discuss results obtained with the numerical in-house PHP simulation code CASCO (French abbreviation for Advanced PHP simulation code). The aim is to study the impact of…Vadim Nikolayev, Iaroslav Nekrashevych·Sep 30, 2026SaveLearn
Scalar mixing by stagnation points on solid surfacesRecent advances have linked mixing in porous media to the deformation of infinitesimal fluid elements. However, these Lagrangian frameworks generally neglect or simplify interactions with solid…Gaute Linga, Tanguy Le Borgne, Joris Heyman·Sep 30, 2026SaveLearn
On the spectra of strong turbulence on water surfacesHere, I give a brief history of the theory, with twists and turns, and list possible predictions for the spectra of the direct cascade of gravity waves on the water. The description of long waves is…Gregory Falkovich·Sep 30, 2026SaveLearn
A Reynolds-like Criterion for the Onset of Universal Active TurbulenceBeyond a critical Toner--Tu drive, bacterial turbulence exhibits universal statistics, including a parameter-independent energy spectrum E(k) k-3/2. We show that the same universal state can…Kunal Kumar, Sandip Sahoo, Kirti Kashyap et al.·Sep 30, 2026SaveLearn
Is Vorticity Amplification Essential for Anomalous Dissipation and Intermittency in Turbulence?The distinct dynamical roles of vorticity amplification (VA) and vortex tilting (VT) in three-dimensional homogeneous isotropic turbulence are investigated using direct numerical simulations of a…Alessandro Chiarini·Sep 30, 2026SaveLearn
Generalised Mixing-Plane Method for Compressible Reacting-Mixture Flows in Steady Multiphysics Turbomachinery SimulationsThe mixing-plane method plays a pivotal role in steady simulations of multiple turbomachinery components. With advances in computational power, a whole-engine gas turbine simulation is no longer an…Yifeng Wang, Lin Shi, Fenglai Huang et al.·Sep 30, 2026SaveLearn