Wake interactions drive synchronized vortex merging in a hovering quadcopterThe most energetic coherent structure of a hovering full-scale quadcopter is associated with a self-organizing process in which the individual rotor vortices synchronize their frequencies while…Elias S. Pratschke, Claus C. Wolf, Daniel Schanz et al.·Sep 16, 2026SaveLearn
How universal are warm turbulent cascades?It is often assumed that general stationary solutions to the wave kinetic equation are described solely by conserved fluxes and temperature. The families of solutions parameterized by these…Ben Y. Israeli, Gregory Falkovich·Sep 16, 2026SaveLearn
Fredholm Backstepping with Heymann Pre-Feedback for Linearized Navier--Stokes 2D ChannelWe stabilize the linearized 2-D Poiseuille channel flow at arbitrary Reynolds numbers, and assign the decay of every wavenumber to any user-prescribed rate. The actuation is as in Vazquez--Krstic…Miroslav Krstic·Sep 16, 2026SaveLearn
The Level Set Ensemble Kalman Filter: Sequential Data Assimilation for Flows With ShocksThe ensemble Kalman filter is commonly used to perform sequential data assimilation in science and engineering because of its robust performance and scalability when the state space dimension is…Michael K. Sleeman, Lorenzo Beronilla, Hangchuan Hu et al.·Sep 16, 2026SaveLearn
Influence of fluidizing medium on hydrodynamics and particle mixing in a binary fluidized bed: a CFD-DEM studyThree-dimensional CFD-DEM simulations were used to investigate the influence of fluidizing medium on the hydrodynamics and mixing of a binary fluidized bed containing equal-density 3 and 4 mm…Ravinder Nath, Gaurav Bhutani·Sep 16, 2026SaveLearn
Thicker Is Better: How Surfactant Viscosity Governs Uniform Surfactant Lung DeliverySurfactant Replacement Therapy (SRT) is a well-established intervention for Neonatal Respiratory Distress Syndrome, yet its translation to adults with Acute Respiratory Distress Syndrome (ARDS) has…Tristan Beuzelin, Matthieu Labousse, Marcel Filoche·Sep 16, 2026SaveLearn
Shape considerations in wave-driven propulsionAt the fluid surface, an asymmetric wave field generated by an oscillating body produces thrust in what is known as wave-driven propulsion (WDP). Although this thrust is directed forward, the…Daire O'Donovan, Graham P. Benham·Sep 16, 2026SaveLearn
Vertical transport and confinement of weakly buoyant particles in a convective ocean mixed-layer modelUnderstanding how particles such as microplastics and plankton spread, or accumulate in localized regions below the ocean surface is crucial both for the development of sea pollutant control…Luz Andrea Silva-Torres, Enrico Calzavarini, Stefano Berti·Sep 16, 2026SaveLearn
Finite-rate chemistry in a hypersonic wall model: heat-flux selection, non-monotone rate response and transport-closure effectsThis study examines how the chemical-reaction timescale alters hypersonic wall-model predictions of heat and momentum transfer. A one-dimensional finite-rate-chemistry wall model for high-enthalpy…Jingchao Zhang·Sep 16, 2026SaveLearn
Control of axial dispersion in polymeric flows: magnetic effect versus electroosmotic effectSince Taylor's seminal work on the dispersion of soluble matter, the modeling and control of solute dispersion have received considerable attention. This study investigates the solute dispersion…Xiaoping Wang, Mengqi Zhang, Haitao Qi·Sep 16, 2026SaveLearn
Library-learning-assisted robust principal component analysis for denoising severely corrupted flow fieldsLarge-amplitude entrywise corruption can distort flow-field data and contaminate extracted modes. Robust principal component analysis (RPCA) separates low-rank flow content from a sparse corruption…Pablo Koop, Isabel Scherl, Kai Fukami·Sep 16, 2026SaveLearn
Perturbation Theory for Translating Oblate-Spheroidal Droplets with Internal CirculationLiquid droplets deform from spherical shape due to aerodynamic variation of pressure along the surface as the droplet moves through a gas. The deformation is predicted for axisymmetric droplets…William A. Sirignano·Sep 15, 2026SaveLearn
Beyond capillarity: extended interfacial energy transfer in bubble-laden turbulenceCapillary forces are commonly regarded as an energetically closed channel in multiphase turbulence, redistributing kinetic energy across scales without net gain or loss. Here we show that this…Andrea Montessori·Sep 15, 2026SaveLearn
Self-similar swirl between contracting porous walls: the GD1998 exact Navier-Stokes solution revisited in the similarity variables of the OpenAI 2026 forced blow-up constructionThe finite-time blow-up construction for the forced Navier-Stokes equations released by OpenAI in Sep. 2026 (OpenAI 2026) has as its object an axisymmetric swirl core in anisotropic similarity…Ramani Duraiswami·Sep 15, 2026SaveLearn
Low order Carleman simulation of steady state flows at mild Reynolds numbersIt is shown that the second-order Carleman truncation (C2) captures the steady state of the decaying forced logistic with second-order accuracy in the forcing parameter, provided such forcing remains…Luca Cappelli, Massimo Berneschi, Sauro Succi·Sep 15, 2026SaveLearn
A derivative-free framework for capturing macroscopic behavior of incompressible turbulent flowsThe derivative-free loss method (DFLM) is a mesh-free neural network approach for solving partial differential equations by simulating stochastic walkers rather than computing derivatives directly.…Jihun Han, Yoonsang Lee·Sep 15, 2026SaveLearn
Comparative Evaluation of Carotid Artery Hemodynamics: Patient-Specific CFD Simulations vs. 4D flow MRIWall shear stress (WSS) is implicated in carotid atherosclerosis, and 4D flow MRI offers a non-invasive route to its estimation, but the agreement of MRI-derived plaque-surface WSS with computational…Ali Mokhtari, Merel Meulendijks, Ariel Bergmann et al.·Sep 15, 2026SaveLearn
Direct Trajectory Reconstruction for Fast 3D X-ray Particle Tracking Velocimetry in Porous MediaX-ray tomographic particle tracking velocimetry is a promising tool to provide pore-scale insight into fluid flow inside opaque porous media. This is critical for applications ranging from geo-energy…Robert van der Merwe, Wannes Goethals, Sharon Ellman et al.·Sep 15, 2026SaveLearn
Rotation Collision based Quantum Lattice Boltzmann MethodsIn the existing quantum algorithms for the lattice Boltzmann method, resolving the unitarity problem of the BGK collision operator from first principles remains a fundamental challenge, and a…Kangyang Zeng, Changshen Huang, Xi Liu et al.·Sep 15, 2026SaveLearn
Turbulence at an aerofoil leading edge: the linearity boundary and its generation mechanismTurbulence approaching an aerofoil leading edge is strained and blocked in the final few nose radii. Rapid-distortion theory assumes that the pre-impact field is a linear image of the upstream…Sparsh Sharma, Malav Soni, Alexandre Suryadi et al.·Sep 15, 2026SaveLearn
Does the Boussinesq approximation correctly describe statistically stationary states of Rayleigh-Bénard convection?It is generally believed that statistically stationary states of Rayleigh-Bénard convection (RBC) can be described by statistically stationary solutions to the Boussinesq approximation. Based on an…Erik Lindborg·Sep 15, 2026SaveLearn
Inertialess turbulence in viscoelastic pipe flowTurbulence is synonymous with inertia dominated fluid motion, entailing high velocities and large spatial scales. Conversely, in complex fluids, elastic material properties can promote and sustain…Shoaib Kamil, Björn Hof·Sep 15, 2026SaveLearn
Extensible membranes in inviscid flow: aerodynamics and singular limitsWe develop a two-dimensional inviscid model for extensible membranes with continuous vortex shedding from both edges, coupled to a weak spectral Galerkin discretization of the membrane equation that…Yu Jun Loo, Silas Alben·Sep 15, 2026SaveLearn
Stratified jet with wall effectsJets in stratified flows are ubiquitous in geophysics. A fundamental question is whether the instabilities and coherent structures generated by the flow interact with the physical boundaries and, if…Hai Duc Vu, Kengo Deguchi·Sep 14, 2026SaveLearn
Improving Reduced-Order Rotating Detonation Engine Models with Data Assimilation and Machine LearningRotating detonation engines (RDEs) exhibit strongly nonlinear, multiscale wave dynamics that set the observed thermal field. High-fidelity simulations (DNS/LES) resolve these structures but remain…Ashwin Suriyanarayanan, Romit Maulik·Sep 14, 2026SaveLearn