Multi-stream physics hybrid networks for solving Navier-Stokes equationsUnderstanding and solving fluid dynamics equations efficiently remains a fundamental challenge in computational physics. Traditional numerical solvers and physics-informed neural networks struggle to…Aleksandr Sedykh, Tatjana Protasevich, Mikhail Surmach et al.·Apr 2, 2025SaveLearn
Motility and rotation of multi-timescale microswimmers in linear background flowsMicroswimming cells and robots exhibit diverse behaviours due to both their swimming and their environment. One of the core environmental features impacting inertialess swimming is background flows.…Eamonn A. Gaffney, Kenta Ishimoto, Benjamin J. Walker·Apr 2, 2025SaveLearn
Probabilistic plugging of airways by sliding mucus filmsWhen do mucus films plug lung airways? Using reduced-order simulations of a large ensemble of randomly perturbed films, we show that the answer is not determined by just the film's volume. While very…Swarnaditya Hazra, Jason R. Picardo·Apr 2, 2025SaveLearn
Analytical and Numerical Linear Analyses of Convection RevisitedWe conduct linear analyses of convection in domains larger than the temperature scale height. We employ both analytical and numerical methods in these analyses. In the case excluding all dissipation,…Izumi Seno, Shu-ichiro Inutsuka·Apr 2, 2025SaveLearn
Experimental analysis of the role of base blowing geometry on three-dimensional blunt body wakesThis experimental study aims to investigate the effect of different base blowing configurations on the aerodynamics of a squareback Ahmed body. Four different slot configurations through which air is…J. M. Camacho-Sánchez, M. Lorite-Díez, J. I. Jiménez-González et al.·Apr 1, 2025SaveLearn
Instabilities and bifurcations in turbulent porous media flowMicroscale turbulent flow in porous media is conducive to the development of flow instabilities due to strong vortical and shearing flow occurring within the pore space. When the flow instabilities…Vishal Srikanth, Andrey V. Kuznetsov·Apr 1, 2025SaveLearn
Uncovering triadic interaction relationships latent in Mode A behind a circular cylinderCoherence between multiple low-frequency components latent in the flow fields characterizes the nonlinear aspects of fluid dynamics. This study reveals the existance of the distinct frequency…Yuto Nakamura, Shintaro Sato, Naofumi Ohnishi·Apr 1, 2025SaveLearn
Magnetic Pillar Induced Poiseuille-like Flow in Microfluidic Channels with Viscous and Viscoelastic FluidsMucociliary clearance in mammals serves as the primary defense mechanism for removing particulate matter deposited in the pulmonary airways. Dysfunctions in this process are linked to serious…Charles Paul Moore, Stefan Rouach, Marine Le Goas et al.·Apr 1, 2025SaveLearn
High specific impulse electrospray propulsion with small capillary emittersThis study demonstrates the feasibility of using smaller capillary emitters to achieve higher specific impulse (Isp) in electrospray propulsion. Four ionic liquids were characterized using…Manel Caballero-Pérez, Marc Galobardes-Esteban, Manuel Gamero-Castaño·Apr 1, 2025SaveLearn
Wavenumber affects the lift of ray-inspired fins near a substrateRays and skates tend to have different fin kinematics depending on their proximity to a ground plane such as the seafloor. Near the ground, rays tend to be more undulatory (high wavenumber), while…Yuanhang Zhu, Leo Liu, Tianjun Han et al.·Apr 1, 2025SaveLearn
Near-surface coherent structures in an intense tropical cyclone: conditional eddies and vertical momentum fluxesThe intermittency of coherent turbulent structures in the tropical cyclone boundary layer makes them challenging to fully characterize, especially regarding their impact on momentum dynamics in the…Chibueze N. Oguejiofor, David H. Richter·Mar 31, 2025SaveLearn
Non-invasive imaging of solute redistribution below evaporating surfaces using 23Na-MRIEvaporation from porous media is a key phenomenon in the terrestrial environment and is linked to accumulation of solutes at or near the evaporative surface. The current study aims at improved…M. A. Chaudhry, S. Kiemle, A. Pohlmeier et al.·Mar 31, 2025SaveLearn
Comparison of Entropy Stable Collocation High-Order DG Methods for Compressible Turbulent FlowsHigh-order methods are well-suited for the numerical simulation of complex compressible turbulent flows, but require additional stabilization techniques to capture instabilities arising from the…Anna Schwarz, Daniel Kempf, Jens Keim et al.·Mar 31, 2025SaveLearn
Compressible N-phase fluid mixture modelsFluid mixture models are essential for describing a wide range of physical phenomena, including wave dynamics and spinodal decomposition. However, there is a lack of consensus in the modeling of…M. F. P. ten Eikelder, E. H. van Brummelen, D. Schillinger·Mar 31, 2025SaveLearn
Moving mesh FSI approach for VIV simulation based on DG method with AMR techniqueVortex-induced vibration (VIV) remains a fundamental yet computationally challenging problem in computational fluid dynamics (CFD). This study develops a moving mesh Fluid-structure interaction (FSI)…Jia-Jun Zou, Yun-Long Liu, Qi Kong et al.·Mar 31, 2025SaveLearn
Physics-informed neural networks for hidden boundary detection and flow field reconstructionSimultaneously detecting hidden solid boundaries and reconstructing flow fields from sparse observations poses a significant inverse challenge in fluid mechanics. This study presents a…Yongzheng Zhu, Weizheng Chen, Jian Deng et al.·Mar 31, 2025SaveLearn
A low cost singular value decomposition based data assimilation technique for analysis of heterogeneous combustion dataThis article applies low-cost singular value decomposition (lcSVD) for the first time, to the authors knowledge, on combustion reactive flow databases. The lcSVD algorithm is a novel approach to SVD,…Prajith Pillai, Ashton Hetherington, Laura Saavedra Sago et al.·Mar 31, 2025SaveLearn
Droplet breakup morphologies and the resultant size distribution in an opposed-flow airstream at different Weber numbersThe present study investigates the morphology and breakup dynamics of a freely falling drop in a vertical airstream using shadowgraphy and in-line holography. The in-line holography provides the…Shubham Chakraborty, Someshwar Sanjay Ade, Lakshmana Dora Chandrala et al.·Mar 31, 2025SaveLearn
A PINN Methodology for Temperature Field Reconstruction in the PIV Measurement Plane: Case of Rayleigh-B\'enard ConvectionWe present a method to infer temperature fields from stereo particle-image velocimetry (PIV) data in turbulent Rayleigh-B\'enard convection (RBC) using Physics-informed neural networks (PINNs). The…Marie-Christine Volk, Anne Sergent, Didier Lucor et al.·Mar 31, 2025SaveLearn
Flow-induced dorso-ventral deformation enhances propulsive efficiency in flexible caudal finsFish swim with flexible fins that stand in stark contrast to the rigid propulsors of engineered vehicles. Using numerical simulations of the dynamics of flow-structure interaction, we have found that…Sushrut Kumar, Matthew J. McHenry, Jung-Hee Seo et al.·Mar 31, 2025SaveLearn
Intermittent flow paths in biofilms grown in a microfluidic channelBiofilms exposed to flow experience shear stress, which leads to a competitive interaction between the growth and development of a biofilm and shearing. In this study, Pseudonomas fluorescene biofilm…Kerem Bozkurt, Christoph Lohrmann, Felix Weinhardt et al.·Mar 31, 2025SaveLearn
Maximum spreading of impacting shear-thinning and shear-thickening dropsThe maximum spreading of an impacting liquid drop is a key metric for characterizing the fundamental fluid process of drop impact. While extensively studied for Newtonian liquids, how far a…Anahita Mobaseri, Satish Kumar, Xiang Cheng·Mar 30, 2025SaveLearn
Structural Boundary State Transitions in Turbulent Pipe FlowExtensive optical measurements of canonical turbulent pipe flows have revealed the existence of structural boundary states (SBSs) -- near-wall low-speed streaks strongly correlated with pairs of…L. Moriconi, G. Saisse·Mar 29, 2025SaveLearn
Effects of Geometric Modelling and Blood Rheology in Patient-Specific Arterial Blood Flow Simulations with Speed-Accuracy Trade-Off AnalysisThis study investigates the effects of geometric model reduction on blood flow simulations in the patient-specific descending aorta, followed by speed-accuracy trade-off analysis using 3D…Rishi Kumar, K. Muralidhar, Indranil Saha Dalal·Mar 29, 2025SaveLearn
Stochastic reduced-order Koopman model for turbulent flowsA stochastic data-driven reduced-order model applicable to a wide range of turbulent natural and engineering flows is presented. Combining ideas from Koopman theory and spectral model order…Tianyi Chu, Oliver T. Schmidt·Mar 28, 2025SaveLearn