Flame-wall interaction of thermodiffusively unstable hydrogen/air flames -- Part I: Characterization of governing physical phenomenaHydrogen combustion systems operated under fuel-lean conditions offer great potential for low emissions. However, these operating conditions are also susceptible to intrinsic thermodiffusive…Max Schneider, Hendrik Nicolai, Vinzenz Schuh et al.·Nov 26, 2024SaveLearn
Helical locomotion in dilute suspensionsMotivated by the aim of understanding the effect of media heterogeneity on the swimming dynamics of flagellated bacteria, we study the rotation and swimming of rigid helices in dilute suspensions…Albane Théry, Andres Zambrano, Eric Lauga et al.·Nov 26, 2024SaveLearn
LC-SVD-DLinear: A low-cost physics-based hybrid machine learning model for data forecasting using sparse measurementsThis article introduces a novel methodology that integrates singular value decomposition (SVD) with a shallow linear neural network for forecasting high resolution fluid mechanics data. The method,…Ashton Hetherington, Javier López Leonés, Soledad Le Clainche·Nov 26, 2024SaveLearn
Multiscale analysis of the textural atomization process of a rocket engine assisted coaxial jetA method for analyzing liquid ligaments of a textural atomization process is presented in this article for the case of a rocket engine type assisted atomization process under combustion. The…Leonardo Geiger, Nicolas Fdida, Christophe Dumouchel et al.·Nov 26, 2024SaveLearn
Scale-space energy transport in anisotropic inhomogeneous buoyancy-driven turbulent flowsIn this article, we introduce a new mathematical framework that can describe the budget of turbulence kinetic energy and heat transfer in both physical space and scale space of turbulence. We derived…Endale H. Kirubel, P. Aswin, A. Sameen·Nov 26, 2024SaveLearn
Hydrodynamics of flow sensing in planktonPlanktonic organisms, despite their passive drift in the ocean, exhibit complex responses to fluid flow, including escape behaviors and larval settlement detection. But what flow signals can they…Christophe Eloy·Nov 26, 2024SaveLearn
Finite Volume Physical Informed Neural Network (FV-PINN) with Reduced Derivative Order for Incompressible FlowsPhysics-Informed Neural Networks (PINN) has evolved into a powerful tool for solving partial differential equations, which has been applied to various fields such as energy, environment,…Zijie Su, Yunpu Liu, Sheng Pan et al.·Nov 26, 2024SaveLearn
Modeling heart flow dynamics using numerical simulations to identify the vortex ring: a practical guideIn this study, we present a comprehensive numerical analysis of blood flow within human left ventricle models, with particular emphasis on optimizing simulation conditions to enhance the realism and…Eneko Lazpita, Andrea Mares, Pedro Quintero et al.·Nov 25, 2024SaveLearn
Finite-difference compatible entropy-conserving schemes for the compressible Euler equationsThis paper introduces a family of entropy-conserving finite-difference discretizations for the compressible flow equations. In addition to conserving the primary quantities of mass, momentum, and…Carlo De Michele, Ayaboe K. Edoh, Gennaro Coppola·Nov 25, 2024SaveLearn
Drop impact on a heated pre-wetted wall: deposition-on-crater splash regimeThe impact of a liquid drop with high Reynolds and Weber numbers on a wet solid surface typically results in the emergence, rising, and expansion of a corona-like thin jet. This phenomenon is…Lukas Weimar, Bastian Stumpf, Jeanette Hussong et al.·Nov 25, 2024SaveLearn
Non-Linear Super-Stencils for Turbulence Model CorrectionsAccurate simulation of turbulent flows remains a challenge due to the high computational cost of direct numerical simulations (DNS) and the limitations of traditional turbulence models. This paper…Jonas Luther, Patrick Jenny·Nov 25, 2024SaveLearn
Low-order reaction-diffusion system approximates heat transfer and flow structure in annular convectionHeat transfer in a fluid can be greatly enhanced by natural convection, giving rise to the nuanced relationship between the Nusselt number and Rayleigh number that has been a focus of modern fluid…Yuejia Zhang, Nicholas J. Moore, Jinzi Mac Huang·Nov 25, 2024SaveLearn
Persistence and bimodality of large-scale turbulent structures across a Rayleigh-Taylor layer: Impact on transport and physical modelling through two-field-conditional correlationsThe distribution functions of field fluctuations of the turbulent mixing layer produced by a Rayleigh-Taylor instability (RTI) have long been hypothesized to involve bimodal effects. The present work…R. Watteaux, J. A. Redford, A. Llor·Nov 25, 2024SaveLearn
Comparison of Generative Learning Methods for Turbulence SurrogatesNumerical simulations of turbulent flows present significant challenges in fluid dynamics due to their complexity and high computational cost. High resolution techniques such as Direct Numerical…Claudia Drygala, Edmund Ross, Mohammad Sharifi Ghazijahani et al.·Nov 25, 2024SaveLearn
Path of a pair of deformable bubbles rising initially in line and close to a vertical wallIt is known that in an unbounded fluid, the inline configuration of a freely rising bubble pair is often unstable with respect to lateral disturbances. This work numerically examines the stability of…Haochen Huang, Pengyu Shi, Nina Elkina et al.·Nov 25, 2024SaveLearn
Rayleigh-Taylor instability in binary fluids with miscibility gapA novel phase field method is proposed to model the continuous transition of binary fluids exhibiting temperature sensitive miscibility gap, from immiscible state to miscible state via partially…Anubhav Dubey, Constantin Habes, Holger Marschall et al.·Nov 25, 2024SaveLearn
Dataflow Optimized Reconfigurable Acceleration for FEM-based CFD SimulationsComputational Fluid Dynamics (CFD) simulations are essential for analyzing and optimizing fluid flows in a wide range of real-world applications. These simulations involve approximating the solutions…Anastassis Kapetanakis, Aggelos Ferikoglou, George Anagnostopoulos et al.·Nov 25, 2024SaveLearn
A Novel Flow-induced Motion Energy Harvesting with Coupled Mechanism of Time-varying Stiffness and Passive Turbulence ControlThe ocean contains a substantial amount of energy, and the efficient harvesting of this energy holds significant importance. Drawing inspiration from the biomimicry of octopus tentacles, this study…Yongxi Wu, Hao Wu·Nov 25, 2024SaveLearn
Experimental demonstration of a space-time modulated airborne acoustic circulatorAchieving strongly nonreciprocal scattering in compact linear acoustic devices is a challenging task. One possible solution is the use of time-modulated resonators, however, their implementation in…Tinggui Chen, Matthieu Mallejac, Chuanxing Bi et al.·Nov 25, 2024SaveLearn
Vortex shedding and heat transfer from a heated circular cylinder in Bingham plastic fluidsThe present study numerically investigates the vortex shedding and heat transfer characteristics of a heated circular cylinder immersed in Bingham plastic fluids.The effects of three parameters,…Sai Peng, Xiang Li, Li Yu et al.·Nov 24, 2024SaveLearn
Optimal rigid brush for fluid captureParallel assemblies of slender structures forming brushes are common in our daily life from sweepers to pastry brushes and paintbrushes. This type of porous objects can easily trap liquid in their…Basile Radisson, Hadrien Bense, Emmanuel Siéfert et al.·Nov 24, 2024SaveLearn
Compressibility and volume variations due to composition in multicomponent fluidsFor single components fluids, vanishing isothermal compressibility implies that the mass density is constant, but the same conclusion is unknown for multicomponent fluids. Here the volume remains…Pierre-Etienne Druet·Nov 24, 2024SaveLearn
PINNs4Drops: Video-conditioned physics-informed neural networks for two-phase flow reconstructionTwo-phase flow phenomena underpin critical technologies such as hydrogen fuel cells, spray cooling, and combustion, where droplet dynamics govern performance and efficiency. Conventional optical…Maximilian Dreisbach, Elham Kiyani, Jochen Kriegseis et al.·Nov 24, 2024SaveLearn
Can flocking aid the path planning of microswimmers in turbulent flows?We show that flocking of microswimmers in a turbulent flow can enhance the efficacy of reinforcement-learning-based path-planning of microswimmers in turbulent flows. In particular, we develop a…Akanksha Gupta, Jaya Kumar Alageshan, Kolluru Venkata Kiran et al.·Nov 24, 2024SaveLearn
Droplet Simulations in Computer Graphics: Theories, Methods and ApplicationsCreating realistic droplet simulations and animations has long been a formidable challenge for researchers and developers due to the inherent complexity of fluid dynamics. Achieving lifelike droplet…Hossein Keshtkar, Nadine Aburumman·Nov 24, 2024SaveLearn