Using lateral dispersion to optimise microfluidic trap array efficiencyMicrofluidic trapping arrays have proven to be efficient tools for various applications that require working at the single-cell level, such as cell-cell communication or fusion. Although several…Nicolas Ruyssen, Gabriel Fina, Rachele Allena et al.·Sep 3, 2024SaveLearn
Capillary-driven migration of droplets on conical fibersA droplet placed on a hydrophilic conical fiber tends to move toward the end of larger radii due to capillary action. Experimental investigations are performed to explore the dynamics of droplets…Yixiao Mao, Chengxi Zhao, Kai Mu et al.·Sep 3, 2024SaveLearn
Dynamic Wall Shear Stress Measurement using Event-based 3D Particle TrackingWe describe the implementation of a 3d Lagrangian particle tracking (LPT) system based on event-based vision (EBV) and demonstrate its application for the near-wall characterization of a turbulent…Christian E. Willert, Joachim Klinner·Sep 3, 2024SaveLearn
Adaptive mesh refinement algorithm for CESE schemes on quadrilateral meshesThis study presents constructions of the space-time Conservation Element and Solution Element (CESE) methods to accommodate adaptive unstructured quadrilateral meshes. Subsequently, a novel algorithm…Lisong Shi, Chaoxiong Zhang, Chih-Yung Wen·Sep 3, 2024SaveLearn
Rapidly yawing spheroids in viscous shear flow: Emergent loss of symmetryWe investigate the emergent three-dimensional (3D) dynamics of a rapidly yawing spheroidal swimmer interacting with a viscous shear flow. We show that the rapid yawing generates non-axisymmetric…Mohit P. Dalwadi·Sep 2, 2024SaveLearn
A wall model for separated flows: embedded learning to improve a posteriori performanceThe development of a wall model using machine learning methods for the large-eddy simulation (LES) of separated flows is still an unsolved problem. Our approach is to leverage the significance of…Zhideng Zhou, Xin-lei Zhang, Guo-wei He et al.·Sep 2, 2024SaveLearn
Flux scaling in Rayleigh B\'enard convection: a local boundary layer analysisWe study the effect of shear due to the large scale flow (LSF) on the heat flux in Rayleigh B'enard convection for a range of near-plate Rayleigh numbers $8× 107 ≤ Raw ≤ 5×…Prafulla P. Shevkar, Baburaj A. Puthenveettil·Sep 2, 2024SaveLearn
Scaling laws for the sound generation of bio-inspired flapping wingsBio-inspired flapping wings have been extensively studied for their remarkable aerodynamic performance. Recently, their noise emission has attracted growing interest, but a careful analysis of…Li Wang, Xueyu Ji, John Young et al.·Sep 2, 2024SaveLearn
A revisit of the development of viscoplastic flow in pipes and channelsThis study revisits the development of viscoplastic flow in pipes and channels, focusing on the flow of a Bingham plastic. Using finite element simulations and the Papanastasiou regularisation,…Alexandros Syrakos, Evgenios Gryparis, Georgios C. Georgiou·Sep 1, 2024SaveLearn
Continuous generation of confined bubbles: viscous effect on the gravito-capillary pinch offWe investigate continuous generation of bubbles from a bath of air in viscous liquid in a confined geometry. In our original setup, bubbles are spontaneously generated by virtue of buoyancy and a…Haruka Hitomi, Ko Okumura·Sep 1, 2024SaveLearn
Direct numerical simulation of two boundary layers with the same pressure distribution but different surface curvaturesA pair of Direct Numerical Simulations is used to investigate curvature and pressure effects. One has a Gaussian test bump and a straight opposite wall, while the other has a straight test wall and a…Philippe Spalart, Kenneth Jansen, Gary Coleman·Aug 31, 2024SaveLearn
Electrolyte spraying within H2 bubbles during water electrolysisElectrolytically generated gas bubbles can significantly hamper the overall electrolysis efficiency. Therefore it is crucial to understand their dynamics in order to optimise water electrolyzer…Aleksandr Bashkatov, Florian Bürkle, Çayan Demirkır et al.·Aug 31, 2024SaveLearn
Inertial Particle Dynamics in Traveling Wave FlowThe dynamics of inertial particles in fluid flows have been the focus of extensive research due to their relevance in a wide range of industrial and environmental processes. Earlier studies have…P. Swaathi, Sanjit Das, N. Nirmal Thyagu·Aug 31, 2024SaveLearn
Freezing receding contact linesWe investigate experimentally the receding of a contact line when a Peltier module is pulled out of a water bath at constant speed, while a ice layer is also growing at constant speed on the Peltier…Rodolphe Grivet, Axel Huerre, Thomas Séon et al.·Aug 31, 2024SaveLearn
Modelling aerodynamic forces and torques of spheroid particles in compressible flowsIn the present study, we conduct numerical simulations of compressible flows around spheroid particles, for the purpose of refining empirical formulas for drag force, lift force, and pitching torque…Yibin Du, Ming Yu, Chongwen Jiang et al.·Aug 31, 2024SaveLearn
Reconstructing unsteady flows from sparse, noisy measurements with a physics-constrained convolutional neural networkData from fluid flow measurements are typically sparse, noisy, and heterogeneous, often from mixed pressure and velocity measurements, resulting in incomplete datasets. In this paper, we develop a…Yaxin Mo, Luca Magri·Aug 30, 2024SaveLearn
Neural network-based closure models for large-eddy simulations with explicit filteringData from direct numerical simulations of turbulent flows are commonly used to train neural network-based models as subgrid closures for large-eddy simulations; however, models with low a priori…Mark Benjamin, Gianluca Iaccarino·Aug 30, 2024SaveLearn
Dynamics of irregular wave fields in the Schamel equation frameworkThe present article is devoted to the study of the dynamics of narrowband wave fields within the non-integrable Schamel equation, which plays an important role in plasma physics, wave dynamics in…Marcelo V. Flamarion, Efim Pelinovsky, Ekaterina Didenkulova·Aug 30, 2024SaveLearn
On the Linear Stability of Partially and Fully Saturated Atmospheres to Moist ConvectionWe present a linear analysis of a minimal model of moist convection under a variety of atmospheric conditions. The stationary solutions that we analyze include both fully saturated and partially…Jeffrey S. Oishi, Benjamin P. Brown·Aug 30, 2024SaveLearn
Physics-Informed Neural Networks for Transonic Flows around an AirfoilPhysics-informed neural networks have gained popularity as a deep-learning based parametric partial differential equation solver. Especially for engineering applications, this approach is promising…Simon Wassing, Stefan Langer, Philipp Bekemeyer·Aug 30, 2024SaveLearn
Accelerating the discovery of steady-states of planetary interior dynamics with machine learningSimulating mantle convection often requires reaching a computationally expensive steady-state, crucial for deriving scaling laws for thermal and dynamical flow properties and benchmarking numerical…Siddhant Agarwal, Nicola Tosi, Christian Hüttig et al.·Aug 30, 2024SaveLearn
Equation identification for fluid flows via physics-informed neural networksScientific machine learning (SciML) methods such as physics-informed neural networks (PINNs) are used to estimate parameters of interest from governing equations and small quantities of data.…Alexander New, Marisel Villafañe-Delgado, Charles Shugert·Aug 30, 2024SaveLearn
A note on the amplitude modulation phenomenon in non-canonical wall-bounded flowsThe amplitude modulation phenomena, defined originally by Mathis et al. (J. Fluid Mech., 628, 311-337; 2009), corresponds to a unique non-linear interaction between Reynolds number (Reτ)…Mitchell Lozier, Ivan Marusic, Rahul Deshpande·Aug 30, 2024SaveLearn
Droplet size and velocity measurements in a cryogenic jet flame of a rocket-type combustor using high speed imagingInjectors of cryogenic liquid rocket engines produce large polydisperse and dense sprays due to the pressure and mass flow conditions. Atomization is the dominating process that drives the flame…Nicolas Fdida, Lucien Vingert, Arnaud Ristori et al.·Aug 30, 2024SaveLearn
Fully Coupled Implicit Hydro-Mechanical Multiphase Flow Simulation in Deformable Porous Media Using DEMKnowledge of the underlying mechanisms of multiphase flow dynamics in porous media is crucial for optimizing subsurface engineering applications like geological carbon sequestration. However,…Quanwei Dai, Kang Duan, Chung-Yee Kwok·Aug 30, 2024SaveLearn