Role of flow topology in wind-driven wildfire propagationWildfires propagate through intricate interactions between wind, fuel, and terrain, resulting in complex behaviors that pose challenges for accurate predictions. This study investigates the…Siva Viknesh, Ali Tohidi, Fatemeh Afghah et al.·Nov 6, 2024SaveLearn
Evolution of internal cnoidal waves with local defects in a two-layer fluid with rotationInternal waves in a two-layer fluid with rotation are considered within the framework of Helfrich's f-plane extension of the Miyata-Maltseva-Choi-Camassa (MMCC) model. Within the scope of this model,…Korsarun Nirunwiroj, Dmitri Tseluiko, Karima Khusnutdinova·Nov 6, 2024SaveLearn
ConvNet-Based Prediction of Droplet Collision Dynamics in MicrochannelsThe dynamics of droplet collisions in microchannels are inherently complex, governed by multiple interdependent physical and geometric factors. Understanding and predicting the outcomes of these…SM Abdullah Al Mamun, Samaneh Farokhirad·Nov 6, 2024SaveLearn
Drainage and lifetime of thin liquid films: the role of salinity and convective evaporationWe experimentally investigate the effect of salinity and atmospheric humidity on the drainage and lifetime of thin liquid films motivated by conditions relevant to air-sea exchanges. We show that the…Tristan Aurégan, Luc Deike·Nov 6, 2024SaveLearn
Convergence study of multi-field singular value decomposition for turbulence fieldsConvergence of a matrix decomposition technique, the multi-field singular value decomposition (MFSVD) which efficiently analyzes nonlinear correlations by simultaneously decomposing multiple fields,…Go Yatomi, Motoki Nakata·Nov 6, 2024SaveLearn
Asymptotic Center--Manifold for the Navier--StokesCenter-manifold approximations for infinite-dimensional systems are treated in the context of the Navier--Stokes equations extended to include an equation for the parameter evolution. The…Prabal S. Negi·Nov 6, 2024SaveLearn
Aerodynamic Influence Over Leading and Pursuing Motorcycles Equipped With Downforce-Generation WingsThe aerodynamic influence of a wing-equipped motorcycle on a pursuing motorcycle presents critical implications for stability and performance. This study investigates the induced flow dynamics,…Braulio Gutierrez Pimenta, Luís Paulo de Queiroz Moreira, Adriano Possebon Rosa et al.·Nov 6, 2024SaveLearn
Dynamic interactions between an aerodynamic flow and a flexible flat platePassive flow control via fluid-structure interaction (FSI) is a promising paradigm for unmanned aerial vehicles operating in vortex-dominated low Reynolds number regimes. A flexible structure has the…Srikumar Balasubramanian, Andres Goza·Nov 5, 2024SaveLearn
Analysis of thermodiffusive instabilities in hydrogen premixed flames using a tabulated flamelet modelPreferential diffusion plays a critical role in the evolution of lean premixed hydrogen flames, influencing flame surface corrugation and overall flame behavior. Simulating such flames with tabulated…Emiliano Manuel Fortes Soplanes, Eduardo Javier Pérez Sánchez, Ambrus Both et al.·Nov 5, 2024SaveLearn
Momentum fluxes in wind-forced breaking wavesWe investigate the momentum fluxes between a turbulent air boundary layer and a growing-breaking wave field by solving the air-water two-phase Navier-Stokes equations through direct numerical…Nicolò Scapin, Jiarong Wu, J. Thomas Farrar et al.·Nov 5, 2024SaveLearn
A data-driven study on Implicit LES using a spectral difference methodIn this paper, we introduce a data-driven filter to analyze the relationship between Implicit Large-Eddy Simulations (ILES) and Direct Numerical Simulations (DNS) in the context of the Spectral…Nicola Clinco, Niccolò Tonicello, Gianluigi Rozza·Nov 5, 2024SaveLearn
Numerical investigation of buoyancy-aided mixed convective flow past a square cylinder inclined at 45 degreesThe present study numerically investigates the two-dimensional mixed convective flow of air past a square cylinder placed at an angle of incidence α = 45 to the free-stream. We perform…Kavin Kabilan, Swapnil Sen, Arun K Saha·Nov 5, 2024SaveLearn
A numerical study on temperature destratification induced by bubble plumes in idealized reservoirsAn in-house numerical model has been developed to study the temperature destratification induced by bubble plumes in reservoirs. The mean flow of the mixed fluid phase is solved using the…Yiran Li, Dongming Liu·Nov 5, 2024SaveLearn
Suppressing parasitic flow in membraneless diffusion-based microfluidic gradient generatorsDiffusion-based microfluidic gradient generators (DMGGs) are essential for various in-vitro studies due to their ability to provide a convection-free concentration gradient. However, these systems,…Vahid Khandan, Ryan C. Chiechi, Elisabeth Verpoorte et al.·Nov 5, 2024SaveLearn
Asymptotic limits of the attached eddy model derived from an adiabatic atmosphereThe attached-eddy model (AEM) predicts mean velocity and streamwise velocity variance profiles that follow a logarithmic shape in the overlap region of high Reynolds number wall-bounded turbulent…Yue Qin, Gabriel G. Katul, Heping Liu et al.·Nov 5, 2024SaveLearn
Dominant balance-based adaptive mesh refinement for incompressible fluid flowsThis work introduces a novel adaptive mesh refinement (AMR) method that utilizes dominant balance analysis (DBA) for efficient and accurate grid adaptation in computational fluid dynamics (CFD)…Gaurav Kumar, Aditya G. Nair·Nov 4, 2024SaveLearn
Revisiting Liu and Katz (2006) and Zigunov and Charonko (2024b): on the Equivalence of the Omnidirectional Integration and the Pressure Poisson EquationIn this work, we demonstrate the equivalency of the Rotating Parallel Ray Omnidirectional Integration (RPR-ODI) and the Pressure Poisson Equation (PPE) for pressure field reconstruction from…Connor Pryce, Lanyu Li, Zhao Pan·Nov 4, 2024SaveLearn
Neural optical flow for planar and stereo PIVNeural optical flow (NOF) offers improved accuracy and robustness over existing OF methods for particle image velocimetry (PIV). Unlike other OF techniques, which rely on discrete displacement…Andrew I. Masker, Ke Zhou, Joseph P. Molnar et al.·Nov 4, 2024SaveLearn
The instability of a membrane enclosed by two viscous fluids with a free surfaceThis study examines the stability of a flexible material interface between two fluids of the same viscosity in interaction with a free surface. When the layers are motionless, we provide evidence for…Joris Labarbe·Nov 4, 2024SaveLearn
Prediction of three-dimensional chemically reacting compressible turbulence based on implicit U-Net enhanced Fourier neural operatorThe accurate and fast prediction of long-term dynamics of turbulence presents a significant challenge for both traditional numerical simulations and machine learning methods. In recent years, the…Zhiyao Zhang, Zhijie Li, Yunpeng Wang et al.·Nov 4, 2024SaveLearn
Monolithic 3D numerical modeling of granular cargo movement on bulk carriers in wavesA novel monolithic approach for simulating vessels in waves with granular cargo is presented using a Finite Volume framework. This model integrates a three-phase Volume of Fluid method to represent…Wibke Düsterhöft-Wriggers, Thomas Rung·Nov 3, 2024SaveLearn
The drag length is key to quantifying tree canopy dragThe effects of trees on urban flows are often determined using computational fluid dynamics approaches which typically use a quadratic drag formulation based on the leaf-area density a and a…Dipanjan Majumdar, Giulio Vita, Rubina Ramponi et al.·Nov 3, 2024SaveLearn
Upstroke wing clapping in bats and bat-inspired robots improves both lift generation and power economyWing articulation is critical for efficient flight of bird- and bat-sized animals. Inspired by the flight of Cynopterus brachyotis, the lesser short-nosed fruit bat, we built a…Xiaozhou Fan, Alberto Bortoni, Siyang Hao et al.·Nov 3, 2024SaveLearn
Advanced Theoretical Analysis of Stability and Convergence in Computational Fluid Dynamics for Computer GraphicsMathematical modeling of fluid dynamics for computer graphics requires high levels of theoretical rigor to ensure visually plausible and computationally efficient simulations. This paper presents an…Rômulo Damasclin Chaves dos Santos·Nov 2, 2024SaveLearn
Dye Attenuation Without Dye: Quantifying Concentration Fields with Short-wave Infrared ImagingDye attenuation, or photometric imaging, is an optical technique commonly used in fluid dynamics to measure tracer concentration fields and fluid thicknesses under the assumption that the motion of…George T. Fortune, Merlin A. Etzold, Julien R. Landel et al.·Nov 1, 2024SaveLearn