Variational derivation of a moist thermal rotating shallow water modelWe introduce a new energy-conserving, moist shallow water model with thermal stratification and rotation. The model is derived from a variational principle, using a Lagrangian expressed in terms of…Colin J. Cotter, Darryl D. Holm, Oliver D. Street·Jun 24, 2026SaveLearn
Droplet Fusion as a Relaxation Process: Comparison with Shape Recovery of Newtonian and Viscoelastic DropletsBiomolecular condensates formed by phase separation often exhibit viscoelastic behavior, yet their shape recovery and fusion dynamics are frequently interpreted using purely viscous models. Here, we…Mohammad Moein Naderi, Zhangli Peng, Huan-Xiang Zhou·Jun 24, 2026SaveLearn
Interfacial Spectral Memory as a State Variable for Finite-Depth Salt-Finger ExchangeThermohaline interfaces in the ocean are often treated through local double-diffusive favorability, yet finite interfaces can also inherit roughness from prior waves, stirring, intrusions, and…Sriram P. Kalathoor·Jun 24, 2026SaveLearn
G-PINNs: Gaussian-based spatially weighted formulation for PINNs: 1D low-viscous BurgersWe introduce a Gaussian-based spatially weighted loss framework (G-PINNs) for physics-informed neural networks (PINNs) to improve the resolution of sharp discontinuities and shock waves. The proposed…Kheir-eddine Otmani, Abdelhalim Azzouz, Nourelhouda Groun et al.·Jun 24, 2026SaveLearn
Poisoning effect of ammonia on the performance and transport process of proton exchange membrane fuel cellsAmmonia is a high-density hydrogen energy carrier and can be decomposed to produce hydrogen for use in fuel cells. However, a significant challenge in ammonia-decomposition-based fuel cell…Yaxian Han, Wei Gao, Yichao Huang et al.·Jun 24, 2026SaveLearn
Implementation and Extension of the Variance-Reduced BGK Method in PICLasTraditional particle-based kinetic methods, such as DSMC, suffer from prohibitive computational cost in low-signal flows, where the deviation from thermodynamic equilibrium is small and statistical…Leon Teichröb, Félix Garmirian, Marcel Pfeiffer·Jun 24, 2026SaveLearn
Stages of turbulence generation and decay in a T-shaped mixerThe T-shaped mixer is widely used in fundamental studies of chemical engineering. Its transitional regime is well understood, whereas the turbulent dynamics has received scarce attention so far. Here…Mohammad Mehdi Zamani Asl, Marc Avila·Jun 24, 2026SaveLearn
Quantity-Dependent Bulk-to-Wall Observability of Surface Loading in Rarefied Hypersonic Flow over Triangular ProtrusionsLocalized protrusions on hypersonic vehicles generate pressure, heat-transfer, and shear loads whose rarefied response can depend on gas beyond the immediate wall neighborhood. This work quantifies…Elyas Lekzian, Ehsan Roohi·Jun 24, 2026SaveLearn
A Novel Methodology for Evaluating Positive Phase Blast Wave Loading Parameters Using High Speed VideoTraditionally, the critical blast wave parameters used to characterize loading conditions are obtained through pressure gauge measurements. However, these instruments are costly, require careful…Caio Barbosa Amorim, Clare Knock, Dain George Farrimond et al.·Jun 24, 2026SaveLearn
VesNet: Neural network accelerated solver for simulating Stokesian vesicle suspensionsNumerical simulation of deformable particle suspensions in Stokes flow is computationally expensive due to nonlinear fluid-structure interactions, evolving interfaces, and multiscale hydrodynamics.…Shan Zhong, Gokberk Kabacaoglu, George Biros·Jun 24, 2026SaveLearn
From Propulsion to Suction: Unraveling Thrust Reversal in Propellers at Intermediate Reynolds NumbersThis study investigates propeller hydrodynamics at intermediate Reynolds numbers (Re), crucial for small-scale robotic systems but still uncharted. Experiments on a propeller-driven underwater…Rong Fu, Siyu Li, Yang Ding·Jun 24, 2026SaveLearn
Mitigating adjoint chaos in wall turbulenceEstimating past events in wall turbulence based solely on surface measurements and first principles is an ill-posed problem that is complicated by chaos. The sensitivity of a measurement to the…Qi Wang, Tamer A. Zaki·Jun 24, 2026SaveLearn
A Free Sphere Reverses the Rebound Direction of a Near-Wall Cavitation BubbleA near-wall cavitation bubble is generally expected to acquire a wallward Kelvin-impulse bias and to rebound or jet toward the wall. Here we show that this canonical direction can be reversed by a…Chun-Zhu Ren, Jun Wen, Hai-Bao Hu et al.·Jun 24, 2026SaveLearn
Extreme-value statistics of curl-of-vorticity precursor peaks in perturbed Taylor-Green vortex turbulencePrecursor peaks in the wavenumber kpeak(t) maximizing the curl-of-vorticity spectrum have been observed to precede the dissipation peak in decaying turbulence. Because small…Satori Tsuzuki·Jun 24, 2026SaveLearn
The near-wall cycle for skin-friction generation revealed through explainable deep learningSkin friction in wall-bounded turbulence is produced by intermittent near-wall motions, yet conventional coherent-structure definitions do not identify which individual events generate wall-shear…Andres Cremades, Sergio Hoyas, Ricardo Vinuesa·Jun 23, 2026SaveLearn
Oscillatory liquid-metal flow in a channel under rapidly decaying applied magnetic fieldThe channel flow of a liquid metal driven by a rapidly varying applied magnetic field is analyzed. The flow configuration, physical properties, and parameters correspond to a duct within a…Oleg Zikanov, Haroon Ahmad, Sergey Smolentsev·Jun 23, 2026SaveLearn
Liquid Jet in Crossflow: Review of Breakup modes and Injector Geometry EffectsThis review focuses on the liquid jet in crossflow (LJIC) configuration. LJIC is one of the most common strategies used for fuel injection in aerospace applications. It is popular due to its…Anubhav Sinha·Jun 23, 2026SaveLearn
A Physics-Informed Fourier-Wavelet Transformer for Multiscale Computational Fluid Dynamics Surrogate ModelingPhysics-informed surrogate models can accelerate computational fluid dynamics simulations. However, many existing methods reproduce global flow patterns more reliably than localized multiscale…Somyajit Chakraborty, Ming Pan, Xizhong Chen·Jun 23, 2026SaveLearn
How is the free surface influence transported in turbulent open channel flows?We investigate how the influence of a free surface is transported in turbulent open channel flow by analysing matched open- and closed-channel direct numerical simulations up to $Reτ ≈…Yoshiyuki Sakai, Christian Bauer·Jun 23, 2026SaveLearn
Temperature distribution measurement on three-phase contact line in liquid nitrogen using two-color temperature-sensitive paintCryogenic phase-change phenomena play an important role in a wide range of engineering applications, including cryogenic cooling systems, superconducting technologies, and space propulsion systems.…Shione Fujiwara, Yasuhiro Egami, Osamu Kawanami et al.·Jun 23, 2026SaveLearn
Aquatic locomotion by an elastically mounted flexible foil actuated by an oscillating forceAn analytical formulation of the fluid-structure interaction of a flexible foil driven by an oscillating force actuating on its elastically mounted leading edge, so that it can heave, pitch and…Ramon Fernandez-Feria·Jun 23, 2026SaveLearn
Efficient Time-Domain Simulation of USV Motions in Short-Crested Irregular Waves Using an IRF-Based FrameworkTraditional time-domain prediction of vessel motions in irregular waves usually relies on superposing responses from many regular-wave components, which is computationally expensive for long-duration…Fei Duan, Zihao Wang, Yaohua Zhou et al.·Jun 23, 2026SaveLearn
Dynamics of diffusive-convective staircases in the oceanDiffusive-convective (DC) staircases in the ocean are observed across a wide range of settings, but their formation, structure, and persistence are not fully understood. Theories for DC staircases…Mary-Louise Timmermans, Jeffrey R. Carpenter·Jun 23, 2026SaveLearn
Eulerian Lagrangian relations in decaying two dimensional incompressible Navier Stokes fluids across initial vorticity packing and Reynolds numberRecent studies Vorticity packing effects on long time turbulent transport in decaying two dimensional incompressible Navier Stokes fluids, Phys. Fluids 38, 045159 (2026) demonstrated that, at a fixed…Snehanshu Maiti, Rajaraman Ganesh·Jun 23, 2026SaveLearn
Waves dictate the yo-yoing decay of a viscoelastic mixing layerWe find that waves develop in a time-decaying mixing layer of viscoelastic fluid, leading the mean-flow to yo-yo. This is in sharp contrast with Newtonian fluids, where laminar mixing layers evolve…Giulio Foggi Rota, Piyush Garg, Jason Tang et al.·Jun 23, 2026SaveLearn