Influence of the particle distribution on dust explosions in the 20 L sphereIt is essential to standardize the safety characteristics of dust explosions to mitigate their impact on the process industries. The 20 L sphere primarily investigates the safety characteristics,…Kasun Weerasekara, Stefan H. Spitzer, Sabine Zakel et al.·Feb 10, 2025SaveLearn
Turbulence in stratified rotating topographic wakesTurbulence generation mechanisms in stratified, rotating flows past three-dimensional (3D) topography remain underexplored, particularly in submesoscale (SMS) regimes critical to geophysical…Jinyuan Liu, Pranav Puthan, Sutanu Sarkar·Feb 10, 2025SaveLearn
Self-similar Features in Secondary Breakup of a Droplet and Ligament Mediated Fragmentation under Extreme ConditionsDroplet formation is relevant in many applications spanning natural and artificial settings. A physical understanding of aerobreakup or air-assisted secondary atomization and predicting size…Saini Jatin Rao, Saptarshi Basu·Feb 9, 2025SaveLearn
Phase-based analysis and control of supersonic turbulent cavity flowsWe present a phase-based framework for reducing the pressure fluctuations within a spanwise-periodic supersonic turbulent cavity flow with an incoming free-stream Mach number of 1.4 and a depth-based…Vedasri Godavarthi, Yoji Kawamura, Lawrence S. Ukeiley et al.·Feb 9, 2025SaveLearn
A validated fluid-structure interaction simulation model for vortex-induced vibration of a flexible pipe in steady flowWe propose a validated fluid-structure interaction simulation framework based on strip methods for the vortex-induced vibration of a flexible pipe. The numerical results are compared with the…Xuepeng Fu, Shixiao Fu, Zhibo Niu et al.·Feb 9, 2025SaveLearn
Model Predictive and Reinforcement Learning Methods for Active Flow Control of an Airfoil with Dual-point Excitation of Plasma ActuatorsThis study investigates the effectiveness of Model Predictive Control (MPC) and Reinforcement Learning (RL) for active flow control over a NACA 4412 airfoil near static stall at Reynolds number…AmirHossein Ghaemi, Abbas Ebrahimi, Majid Hajipour et al.·Feb 8, 2025SaveLearn
Anomalous Reynolds stress and dynamic mechanisms in two-dimensional elasto-inertial turbulence of viscoelastic channel flowElasto-inertial turbulence (EIT) has been demonstrated to be able to sustain in two-dimensional (2D) channel flow; however the systematic investigations on 2D EIT remain scare. This study addresses…Haotian Cheng, Hongna Zhang, Wenhua Zhang et al.·Feb 8, 2025SaveLearn
Viscoelasticity reduces the droplet size in mucosalivary film fragmentation during intense respiratory eventsWe examine the fundamental fluid dynamical mechanisms dictating the generation of bioaerosols in the human trachea during intense respiratory events such as coughing and sneezing, with an emphasis on…Mogeng Li, Youssef Saade, Stéphane Zaleski et al.·Feb 7, 2025SaveLearn
Design of a Piezoelectric Wind Energy Harvester for Bacterial Disinfection of Drinking WaterIn this thesis, a piezoelectric wind energy harvester is proposed for bacterial disinfection of drinking water. A mathematical model of a piezoelectric wind energy harvester is developed to predict…Prakash Poudel·Feb 7, 2025SaveLearn
Assessment of averaged 1D models for column adsorption with 3D computational experimentsIn the present manuscript, we formulate a 3D mathematical model describing the capture of a contaminant in an adsorption column. The novelty of our approach involves the description of mass transfer…Maria Aguareles, Francesc Font·Feb 7, 2025SaveLearn
Ensembles in Urban Large Eddy Simulations with Changing Wind DirectionDifferences between time-averaged and ensemble-averaged wind are studied for the case of changing wind direction. We consider a flow driven by a temporally turning pressure gradient in both an…Jukka-Pekka Keskinen, Antti Hellsten·Feb 7, 2025SaveLearn
Multiscale circulation in wall-parallel planes of turbulent channel flowsWall turbulence consists of various sizes of vortical structures that induce flow circulation around a wide range of closed Eulerian loops. Here we investigate the multiscale properties of…Peng-Yu Duan, Xi Chen, Katepalli R. Sreenivasan·Feb 7, 2025SaveLearn
A fully conservative discrete velocity Boltzmann solver with parallel adaptive mesh refinement for compressible flowsThis paper presents a parallel and fully conservative adaptive mesh refinement (AMR) implementation of a finite-volume-based kinetic solver for compressible flows. Time-dependent H-type refinement is…Ruben M. Strässle, S. A. Hosseini, I. V. Karlin·Feb 7, 2025SaveLearn
The Co-Moving Velocity and Projective TransformationsIn a string of recent papers starting with (Transport in Porous Media, 125, 565 (2018)), a theory of immiscible two-phase flow in porous media based on Euler homogeneity of the total volumetric flow…Håkon Pedersen·Feb 7, 2025SaveLearn
Statistical Methods and Modal Decompositions for Gridded and Scattered Data: Meshless Statistics and Meshless Data Driven Modal AnalysisStatistical tools are crucial for studying and modeling turbulent flows, where chaotic velocity fluctuations span a wide range of spatial and temporal scales. Advances in image velocimetry,…Miguel A. Mendez, Manuel Ratz, Damien Rigutto·Feb 7, 2025SaveLearn
Capturing Extreme Events in Turbulence using an Extreme Variational Autoencoder (xVAE)Turbulent flow fields are characterized by extreme events that are statistically intermittent and carry a significant amount of energy and physical importance. To emulate these flows, we introduce…Likun Zhang, Kiran Bhaganagar, Christopher K. Wikle·Feb 7, 2025SaveLearn
The aerodynamic performance of a transonic airfoil with spanwise forcingSpanwise wall forcing in the form of streamwise-travelling waves is applied to the suction side of a transonic airfoil with a shock wave to reduce aerodynamic drag. The study, conducted using direct…Niccolò Berizzi, Davide Gatti, Giulio Soldati et al.·Feb 6, 2025SaveLearn
Thin ring wing as a means of flow improvement upstream of a propellerThere are numerous devices currently known with the purpose of reducing the irregularity of the flow upstream of the propeller and to decrease by that means the propeller-induced vibration and noise.…Vladimir Sluchak·Feb 6, 2025SaveLearn
CaNS-Fizzy: A GPU-accelerated finite difference solver for turbulent two-phase flowsCaNS-Fizzy -- Fizzy for short -- is a GPU-accelerated numerical solver for massively-parallel Direct Numerical Simulations (DNS) of incompressible two-phase flows. A DNS enables direct access to all…G. Lupo, P. Wellens, P. Costa·Feb 6, 2025SaveLearn
Sensitivity of three-dimensional boundary-layer stability to intrinsic uncertainties of fluid properties: a study on supercritical CO2The intrinsic uncertainty of fluid properties, including the equation of state, viscosity, and thermal conductivity, on boundary layer stability has scarcely been addressed. When a fluid is operating…Jie Ren, Yongxiang Wu, Xuerui Mao et al.·Feb 6, 2025SaveLearn
Parametric reduced-order modeling and mode sensitivity of actuated cylinder flow from a matrix manifold perspectiveWe present a framework for parametric proper orthogonal decomposition (POD)-Galerkin reduced-order modeling (ROM) of fluid flows that accommodates variations in flow parameters and control inputs. As…Shintaro Sato, Oliver T. Schmidt·Feb 6, 2025SaveLearn
Derivation of the Gromeka Acceleration Vector for Dimensionless Womersley FlowThis manuscript presents an analytical and theoretical investigation of the Gromeka acceleration field in a dimensionless Womersley flow, derived through the exact solution of the governing…Khalid Saqr·Feb 5, 2025SaveLearn
Turbulent transport in a non-Markovian velocity fieldThe commonly used quasilinear approximation allows one to calculate the turbulent transport coefficients for the mean of a passive scalar or a magnetic field in a given velocity field. Formally, the…G. Kishore, Nishant K. Singh·Feb 5, 2025SaveLearn
Sliding of a liquid spherical droplet in an external insoluble liquid at low Reynolds numbersThe experiment shows that small liquid droplets under the action of gravity and the Archimedes force move in the external viscous liquid practically according to the Stokes drag force equation, and…Peter Lebedev-Stepanov·Feb 5, 2025SaveLearn
Implementation of integral surface tension formulations in a volume of fluid framework and their applications to Marangoni flowsAccurate numerical modeling of surface tension has been a challenging aspect of multiphase flow simulations. The integral formulation for modeling surface tension forces is known to be consistent and…Mandeep Saini, Vatsal Sanjay, Youssef Saade et al.·Feb 4, 2025SaveLearn