Significant heat transfer enhancement via polymer additives in two-dimensional sheared convectionHeat dissipation is critical in modern engineering systems. Polymer additives offer a potential route to improve fluid-based cooling. Here, we study elasticity-enhanced heat transfer in…Guanhan Li, Lu Zhu, Rich. R. Kerswell·May 7, 2026SaveLearn
Reduced-Order Modeling of Parameterized Visco-Plastic Shallow FlowsWe propose a non-intrusive reduced-order modeling framework for parametrized visco-plastic free-surface flows governed by a shallow-water formulation of Herschel--Bulkley fluids. These flows exhibit…Md Rezwan Bin Mizan, Ilya Timofeyev, Maxim Olshanskii·May 7, 2026SaveLearn
Mixing of miscible liquids: Dimensionless scaling for intermediate-to-large density differences in a stirred tankMixing of miscible liquids is an essential process in multiple industrial settings, usually with the intent to homogenize the product. This seemingly simple process is in fact a complex hydrodynamic…Michael R. Wagner, Manuela Dubacher, Nikoletta Patsaki et al.·May 7, 2026SaveLearn
Topology optimization of two-fluid turbulent heat exchangers: A Darcy flow-based multifidelity approachThis paper presents a topology optimization method for designing two-fluid heat exchangers under turbulent conditions using a Darcy flow-based low-fidelity (LF) model. The LF model is calibrated…Hiroki Kawabe, Kaito Ohtani, Kentaro Yaji et al.·May 7, 2026SaveLearn
Comparative Numerical Study of Film Cooling Strategies for Thermal Protection of a Kerosene-Fueled Oblique Detonation CombustorThermal protection remains a critical challenge for oblique detonation engines (ODEs) operating under hypersonic conditions due to the extreme heat release and compact combustor geometry associated…Jianghong Li, Songbai Yao, Wenwu Zhang·May 7, 2026SaveLearn
Numerical Modeling of Flow and Air Entrainment in Hydraulic Jumps for a Wide Range of Froude NumbersThe numerical modeling of hydraulic jumps remains challenging due to complex interactions among free-surface deformation, air entrainment and detrainment, and turbulent bubble transport. Whereas…L. D'Angelo, F. Zabaleta, G. E. Spadari et al.·May 7, 2026SaveLearn
Rigorous ultimate scaling in rapidly rotating steady convectionRapidly rotating Rayleigh-B\'enard convection admits a class of exact steady single-mode solutions describing high-amplitude convection cells. Using a matched asymptotic analysis in the…Gabriel Hadjerci, Shingo Motoki, Genta Kawahara·May 7, 2026SaveLearn
LES of Droplet Impingement: Application to Clean and Laser-Scanned Ice ShapesThe prediction of aircraft icing is conventionally performed using multishot simulation frameworks that fail to predict the progressive roughening of the ice surface. To understand roughness…Federico Zabaleta, Brett Bornhoft, Suhas S. Jain et al.·May 6, 2026SaveLearn
Buffet Alleviation via Linear Stability AdjointTransonic buffet, self--sustained shock and shear--layer oscillations, imposes hard limits on the cruise envelope of modern transport aircraft, and avoiding it is a primary design driver.…Rohit Sunil Kanchi, Sicheng He, Eirikur Jonsson et al.·May 6, 2026SaveLearn
Modelling Farm-to-Farm Interaction Using a Fast Linearised Numerical ApproachThis paper presents a computationally efficient, linearised numerical method for modelling aerodynamic interactions between wind farms. The linearised two-dimensional incompressible equations are…Alexia Everley, Hossein A. Kafiabad, Majid Bastankhah·May 6, 2026SaveLearn
Collective and nonlinear structure of wind power correlationsWe describe the correlation structure of wind power fluctuations in a farm of 80 turbines, sampled over 5 years. We report the presence of universal, collective, and nonlinear correlations,…Samy E. Lakhal, J. E. Sardonia, M. M. Bandi·May 6, 2026SaveLearn
Real-Time Estimation of High-Resolution Flow Fields and Reduced-Order Coordinates from Event-Based Imaging VelocimetryWe propose a data-driven framework to estimate high-resolution (HR) velocity fields and reduced-order flow coordinates from real-time Event-Based Imaging Velocimetry (rt-EBIV). Fast event analysis…L. Franceschelli, E. Amico, C. E. Willert et al.·May 5, 2026SaveLearn
Geometry-controlled heat transport in differentially heated cavity through the lens of DNS and resolvent analysisWe perform direct numerical simulations (DNS) and resolvent analysis of natural convection in a differentially heated cavity (DHC) at Prandtl number Pr = 0.7, systematically varying the aspect…Krishan Chand, Michael Quan, Alberto Padovan et al.·May 5, 2026SaveLearn
Turbulent Boundary Layer Height Scales in HurricanesBoundary layer processes drive the air-sea exchange of momentum, heat, and moisture that powers and shapes hurricanes. The height of the boundary layer is a critical parameter in engineering and…Kishore Ram Sathia, Marco Giovanni Giometto·May 5, 2026SaveLearn
Interface pinch-off in the presence of a soluble surfactantWe study numerically and experimentally the breakup of a pendant droplet loaded with a soluble surfactant. We consider the limit in which surfactant sorption is limited only by diffusion. Surfactant…M. Rubio, S. Rodríguez-Aparicio, J. M. Montanero et al.·May 5, 2026SaveLearn
A Time-Domain Harmonic Balance Unified Gas-Kinetic Scheme for Temporally Periodic Flows Across all Knudsen RegimesThis paper introduces a time-domain harmonic balance unified gas-kinetic scheme (HB-UGKS) designed to simulate temporally periodic flows across all Knudsen regimes. The harmonic balance approach…Yuze Zhu, Hangkong Wu, Yufeng Wei et al.·May 5, 2026SaveLearn
Flow instability in Stokes layer of Carreau fluidsThis study investigates the influence of shear-thinning on the instability of a prototype time-periodic flow, the Stokes layer, in Carreau fluids. The time-dependent base flow was solved using a…Mengqi Zhang, Dongdong Wan, Huanshu Tan·May 5, 2026SaveLearn
Squid-inspired soft superpropulsionSquid span four orders of magnitude in size yet rely on pulsed jets. We show that the funnel (siphon) is a compliant nozzle whose dilation and recoil lag mantle contraction, storing and returning…Daehyun Choi, Paras Singh, Ian Bergerson et al.·May 5, 2026SaveLearn
Conditional Neural Field based Reduced Order Model for Dynamic Ditching Load PredictionGrid-based neural networks such as convolutional autoencoders are widely used in dimension reduction-based surrogate models for computational fluid dynamics. In recent years, the use of…Henning Schwarz, Pyei Phyo Lin, Jens-Peter M. Zemke et al.·May 5, 2026SaveLearn
A frictional control mechanism of circumpolar transport in barotropic reentrant channel modelsRecent studies have reported that an increase in the bottom drag coefficient can enhance the volume transport of the Antarctic Circumpolar Current. Several mechanisms have been proposed to explain…Takuro Matsuta, Atsushi Kubokawa, Humio Mitsudera et al.·May 5, 2026SaveLearn
Triad phase dynamics determine cascade direction in two-dimensional turbulenceDespite their importance in turbulence theory, a unifying and predictive rule determining the direction of the cascades of conserved quantities is lacking. In this work, we show that the direction of…Santiago J. Benavides, Miguel D. Bustamante·May 4, 2026SaveLearn
Lattice Boltzmann methodology for unconfined flowsNumerical analysis of unconfined flow over an obstacle has always been challenging in computational fluid dynamics due to the truncation of the computational domain while replicating the real-life…Vemu Sahiti, PS Gurugubelli, VK Surasani·May 4, 2026SaveLearn
Convection velocities and velocity coupling of outer-scaled wall-pressure fluctuations in canonical turbulent boundary layersThis study shows that the turbulent velocities most strongly correlated with outer-scaled (δ-scaled) wall-pressure fluctuations beneath a zero-pressure-gradient boundary layer reside within the…Rahul Deshpande, Abdelrahman Hassanein, Woutijn J. Baars·May 4, 2026SaveLearn
Experimental Evidence for Longitudinal Scaling Exponent Saturation in Shear TurbulenceThe asymptotic behavior of velocity statistics in the tails of distributions and at high Reynolds numbers remains unresolved in turbulence. To investigate this behavior we measured the nth-order…Dipendra Gupta, Gregory P. Bewley·May 3, 2026SaveLearn
Entropic lattice Boltzmann method for general anisotropic advection--diffusionMany transport processes exhibit direction-dependent diffusion, described macroscopically by the full-tensor anisotropic advection--diffusion equation (ADE). Numerical discretization is demanding…Jingsen Feng, Jing Leng, Jingchao Jiang et al.·May 3, 2026SaveLearn