Precision Air Flow Control via EHD Actuator: A Co-simulation and Control Design Case StudyA Dielectric Barrier Discharge (DBD) plasma actuator for controlling airflow is proposed. It consists of diverging and converging nozzles, two concentric cylinders and an actuator mounted in-between…Afshin Shaygani, Kazimierz Adamiak, Mehrdad R. Kermani·Feb 9, 2024SaveLearn
Enhanced bubble growth near an advancing solidification frontFrozen water might appear opaque since gas bubbles can get trapped in the ice during the freezing process. They nucleate and then grow near the advancing solidification front, due to the formation of…Jochem G. Meijer, Duarte Rocha, Annemarie M. Linnenbank et al.·Feb 9, 2024SaveLearn
Capillary imbibition in lubricant coated channelsCapillary imbibition underpins many processes of fundamental and applied relevance in fluid mechanics. A limitation to the flow is the coupling to the confining solid, which induces friction forces.…Sergi G. Leyva, Ignacio Pagonabarraga, Aurora Hernández-Machado et al.·Feb 9, 2024SaveLearn
Neural SPH: Improved Neural Modeling of Lagrangian Fluid DynamicsSmoothed particle hydrodynamics (SPH) is omnipresent in modern engineering and scientific disciplines. SPH is a class of Lagrangian schemes that discretize fluid dynamics via finite material points…Artur P. Toshev, Jonas A. Erbesdobler, Nikolaus A. Adams et al.·Feb 9, 2024SaveLearn
Robust Solid Boundary Treatment for Compressible Smoothed Particle HydrodynamicsThe unavailability of accurate boundary treatment methods for compressible Smoothed Particle Hydrodynamics (SPH) severely limits its ability to simulate flows in and around bodies. To this end,…Navaneet Villodi, Prabhu Ramachandran·Feb 9, 2024SaveLearn
The minimal flow unit and origin of two-dimensional elasto-inertial turbulenceThe research on elasto-inertial turbulence (EIT), a new type of turbulent flow, has reached the stage of identifying the minimal flow unit (MFU). On this issue, direct numerical simulations (DNSs) of…Zhang Hongna, Cheng Haitian, Wang Suming et al.·Feb 9, 2024SaveLearn
Non-adiabatic modulation of premixed-flame thermoacoustic frequencies in slender tubesThis paper presents an experimental study of the influence of heat losses on the onset of thermoacoustic instabilities in methane-air premixed flames propagating in a horizontal tube of small…Enrique Flores-Montoya, Victor Muntean, Mario Sánchez-Sanz et al.·Feb 8, 2024SaveLearn
Study and derivation of closures in the volume-filtered framework for particle-laden flowsThe volume-filtering of the Navier-Stokes equations allows to consider the effect that particles have on the fluid without further assumptions, but closures arise of which the implications are not…Max Hausmann, Victor Chéron, Fabien Evrard et al.·Feb 8, 2024SaveLearn
Numerical solution of the Newtonian plane Couette flow with linear dynamic wall slipAn efficient numerical approach based on weighted average finite differences is used to solve the Newtonian plane Couette flow with wall slip, obeying a dynamic slip law that generalizes the Navier…Muner M. A. Hasan, Ethar A. A. Ahmed, Ahmed F. Ghaleb et al.·Feb 8, 2024SaveLearn
Scattering of surface waves by ocean currents: the U2H mapOcean turbulence at meso- and submesocales affects the propagation of surface waves through refraction and scattering, inducing spatial modulations in significant wave height (SWH). We develop a…Han Wang, Ana B. Villas Bôas, Jacques Vanneste et al.·Feb 8, 2024SaveLearn
The stability analysis based on viscous theory of Faraday waves in Hele-Shaw cellsThe linear instability of Faraday waves in Hele-Shaw cells is investigated with consideration of the viscosity of fluids after gap-averaging the governing equations due to the damping from two…Xingsheng Li, Jing Li·Feb 8, 2024SaveLearn
Statistical evaluation and Phase Doppler Anemometry data processing of rotary atomizationRotary atomization is used in a wide variety of fields, exploiting the external control option of the spray while no high-pressure fluid is needed. Most papers on rotary atomization deal with liquid…Erika Rácz, Milan Malý, Ondřej Cejpek et al.·Feb 8, 2024SaveLearn
Hot-wire based estimation of pressure fluctuations in the near field of a jet in the presence of a co-flowIt is shown that the velocity fluctuation spectra measured using a hot-wire in the potential flow region of a turbulent jet near field in the presence of a co-flow can be converted into the spectra…O. P. Bychkov, G. A. Faranosov·Feb 8, 2024SaveLearn
Reduced-order modeling of unsteady fluid flow using neural network ensemblesThe use of deep learning has become increasingly popular in reduced-order models (ROMs) to obtain low-dimensional representations of full-order models. Convolutional autoencoders (CAEs) are often…Rakesh Halder, Mohammadmehdi Ataei, Hesam Salehipour et al.·Feb 8, 2024SaveLearn
Dynamics of Soap Bubble InflationBubbles have always captivated our curiosity with their aesthetics and complexities alike. While the act of blowing bubbles is familiar to everyone, the underlying physics of these fleeting spheres…Saini Jatin Rao, Siddhant Jain, Saptarshi Basu·Feb 8, 2024SaveLearn
Assessment of models for nonlinear oscillatory flow through a hexagonal sphere packWe review models for unsteady porous media flow in the volume-averaging framework and we discuss the theoretical relations between the models and the definition of the model coefficients (and the…Lukas Unglehrt, Michael Manhart·Feb 7, 2024SaveLearn
Perturbation analysis of triadic resonance in columnar vortices: selection rules and the roles of external forcing and critical layersThe remarkable robustness of columnar vortices suggests the existence of fundamental constraints that prevent spontaneous disintegration. In this work, we investigate the weakly nonlinear stability…Jinge Wang, Sangjoon Lee, Philip S. Marcus·Feb 7, 2024SaveLearn
A Geometric VOF Method for Interface Flow SimulationsA novel numerical technique designed for interface flow simulations using the Volume of Fluid (VOF) method on arbitrary unstructured meshes has been introduced. The method is called SimPLIC, which…Dezhi Dai, Haomin Yuan, Albert Y. Tong et al.·Feb 7, 2024SaveLearn
JAX-Fluids 2.0: Towards HPC for Differentiable CFD of Compressible Two-phase FlowsIn our effort to facilitate machine learning-assisted computational fluid dynamics (CFD), we introduce the second iteration of JAX-Fluids. JAX-Fluids is a Python-based fully-differentiable CFD solver…Deniz A. Bezgin, Aaron B. Buhendwa, Nikolaus A. Adams·Feb 7, 2024SaveLearn
A Novel Paradigm in Solving Multiscale ProblemsMultiscale phenomena manifest across various scientific domains, presenting a ubiquitous challenge in accurately and effectively simulating multiscale dynamics in complex systems. In this paper, a…Jing Wang, Zheng Li, Pengyu Lai et al.·Feb 7, 2024SaveLearn
On the feasibility of a component-based approach to predict aerodynamic noise from high-speed train bogiesAt speeds above 300 km/h, aerodynamic noise becomes a significant source of railway noise. In a high-speed train, the bogie area is one of the most important aerodynamic noise sources. To predict…Eduardo Latorre Iglesias, David Thompson, Jorge Muñoz Paniagua et al.·Feb 7, 2024SaveLearn
Determination of Navier's slip parameter using data assimilationOne of the crucial aspects of patient-specific blood flow simulations is to specify material parameters and boundary conditions. The choice of boundary conditions can have a substantial impact on the…Alena Jarolímová, Jaroslav Hron·Feb 7, 2024SaveLearn
On the early stages of vapor bubble growth: From the surface-tension to the inertial regimeThis paper presents a new analytical model for the early stages of vapor bubble growth in superheated liquids. The model bridges a gap in current knowledge by focusing on the surface…Orr Avni, Eran Sher, Yuval Dagan·Feb 7, 2024SaveLearn
A comparison of different approaches to compute surface tension contribution in incompressible two-phase flowsWe perform a quantitative assessment of different strategies to compute the contribution due to surface tension in incompressible two-phase flows using a conservative level set (CLS) method. More…Giuseppe Orlando, Paolo Francesco Barbante, Luca Bonaventura·Feb 7, 2024SaveLearn
SBoTFlow: A Scalable framework using lattice Boltzmann method and Topology-confined mesh refinement for moving-body applicationsThis paper proposes a scalable lattice-Boltzmann computational framework (SBoTFlow) for simulations of flexible moving objects in an incompressible fluid flow. Behavior of fluid flow formed from…Duc V. Nguyen, Dung V. Duong·Feb 7, 2024SaveLearn