Constructing wall turbulence using hierarchical hairpin vorticesWall-bounded turbulence is characterized by coherent, worm-like structures such as hairpin vortices. The attached-eddy model provides a successful statistical framework for the log-law region, yet…Weiyu Shen, Yuchen Ge, Zishuo Han et al.·Apr 9, 2025SaveLearn
Data-Driven RANS Closures Using a Relative Importance Term Analysis Based Classifier for 2D and 3D Separated FlowsThis study presents a novel approach for enhancing Reynolds-averaged Navier-Stokes (RANS) turbulence modeling through the application of a Relative Importance Term Analysis (RITA) methodology to…Tyler Buchanan, Monica Lăcătuş, Alastair West et al.·Apr 9, 2025SaveLearn
Transport of electrolytes across nanochannels: the role of slipWe characterize the electrokinetic flow due to the transport of electrolytes embedded in nanochannels of varying cross-section with inhomogeneous slip on their walls, modeled as an effective slip…F. Carusela, J. Harting, P. Malgaretti·Apr 9, 2025SaveLearn
Wake instability of a fixed spherical droplet with a high drop-to-fluid viscosity ratioDirect numerical simulations of a uniform flow past a fixed spherical droplet are performed to investigate the parameter range within which the axisymmetric flow becomes unstable due to an external…Pengyu Shi, Éric Climent, Dominique Legendre·Apr 9, 2025SaveLearn
Dynamics of two Interacting Drops in a Microfluidic Confinement under imposed Temperature GradientThermocapillary motion is widespread in both natural and engineering applications. A tiny drop of one liquid, suspended within another, may be set into motion aligned with an imposed thermal…Sayak Ray, Sudipta Ray, Suman Chakraborty·Apr 9, 2025SaveLearn
Theoretical analysis for non-linear effects of magnetic fields on unsteady boundary layer flowsThis study investigates unsteady boundary layer phenomena in electrically conducting fluids subjected to static magnetic fields. Using a semi-explicit similarity transformation method, the momentum…Jing-Yu Fu, Ming-Jiu Ni, Nian-Mei Zhang·Apr 9, 2025SaveLearn
Uncovering flow and deformation regimes in the coupled fluid-solid vestibular systemIn this paper, we showcase how flow obstruction by a deformable object can lead to symmetry breaking in curved domains subject to angular acceleration. Our analysis is motivated by the deflection of…Javier Chico-Vázquez, Derek E. Moulton, Dominic Vella·Apr 8, 2025SaveLearn
Differential diffusion effects and super-adiabatic local temperature in lean hydrogen-air turbulent flamesAnalyzed in this paper are three-dimensional Direct Numerical Simulation (DNS) data obtained from seven statistically planar and one-dimensional, lean complex-chemistry hydrogen-air flames…H. C. Lee, P. Dai, M. Wan et al.·Apr 8, 2025SaveLearn
New concept to measure the Poiseuille coefficient of rarefied gas flow driven by a large pressure dropThe Poiseuille coefficient, which relates the mass flow rate through a long capillary to the local pressure gradient, is an important characteristic in designing various technological processes that…Felix Sharipov, Irina Graur·Apr 8, 2025SaveLearn
A data-driven convergence booster for accelerating and stabilizing pseudo time-steppingThis paper introduces a novel data-driven convergence booster that not only accelerates convergence but also stabilizes solutions in cases where obtaining a steady-state solution is otherwise…Xukun Wang, Yilang Liu, Xiang Yang et al.·Apr 8, 2025SaveLearn
Modelli idrodinamici per la verifica della dinamica di navi in avanzamentoThis work studies the problem of predicting the loads and motions induced by wave systems on a ship in forward motion (seakeeping). Assuming that the hull is rigid, the motion of the ship is…Andrea Colagrossi·Apr 8, 2025SaveLearn
Radiatively-Cooled Moist Convection under an Idealised Climate Change Scenario: Linear AnalysisIn order to explore the effects of climate change on atmospheric convection and the water cycle, we develop and analyse an extension of the Rainy-B\'enard model, which is itself a moist version of…Gregory N. Dritschel, Steven M. Tobias, Douglas J. Parker et al.·Apr 8, 2025SaveLearn
Local Thermal Non-Equilibrium Models in Porous Media: A Comparative Study of Conduction EffectsInstantaneous heat transfer between different phases is a common assumption for modeling heat transfer in porous media, known as Local Thermal Equilibrium (LTE). This assumption may not hold in…Anna Mareike Kostelecky, Ivar Stefansson, Carina Bringedal et al.·Apr 8, 2025SaveLearn
Geometry-Driven Segregation in Periodically Textured Microfluidic ChannelsWe investigate the transport dynamics of elongated microparticles in microchannel flows. While smooth-walled channels preserve the dependence of particle trajectories on initial orientation and…Fatemeh S. Ahmadi, Hossein Hamzehpour, Reza Shaebani·Apr 8, 2025SaveLearn
Residual U-Net for accurate and efficient prediction of hemodynamics in two-dimensional asymmetric stenosisThis study presents residual U-Net (U-ResNet), a deep learning surrogate model for predicting steady hemodynamic fields in two-dimensional asymmetric stenotic channels at Reynolds numbers ranging…Xintong Zou, Suiyang Tong, Wenhui Peng et al.·Apr 8, 2025SaveLearn
Monte-Carlo based model for the extraction of oil from oil-water mixtures using wetting and surface acoustic wavesThis work presents a Monte Carlo (MC) based microscopic model for simulating the extraction of oil from oil-in-water emulsions under the influence of surface acoustic waves (SAWs). The proposed model…Jesús. M. Marcos, Yifan Li, Mark Fasano et al.·Apr 8, 2025SaveLearn
Dissolution-driven transport in a rotating horizontal cylinderWe study the combined effects of natural convection and rotation on the dissolution of a solute in a solvent-filled circular cylinder. The density of the fluid increases with the increasing…Subhankar Nandi, Jiten C. Kalita, Sanyasiraju VSS Yedida et al.·Apr 8, 2025SaveLearn
Statistics of velocity gradient and vortex sheet structures in polymeric turbulent von K\'arm\'an swirling flowInvestigations into the effects of polymers on small-scale statistics and flow patterns were conducted in a turbulent von Karman swirling (VKS) flow. We employed the tomographic particle image…Feng Wang, Yi-Bao Zhang, Ping-Fan Yang et al.·Apr 8, 2025SaveLearn
Spontaneous vortex crystal formation in classical rotating flowsVortex crystals, ordered structures observed in superconductors and rotating superfluids, have also been hypothesized to form in classical fluids, based on numerical simulations and observations of…Gabriel Marchetti, Pablo D. Mininni·Apr 8, 2025SaveLearn
The Salinas Reactive-Flow Rate ModelWe present the model Salinas and discuss its results in modeling corner-turning behavior, including failure and the formation of dead zones. Salinas is a recent reactive-flow model for detonation in…Peter Todd Williams·Apr 8, 2025SaveLearn
Natural convection in a vertical channel. Part 3. Bifurcations of many (additional) unstable periodic orbits and their dynamical relevanceVertical thermal convection system exhibits weak turbulence and spatio-temporally chaotic behaviour. In this system, we report seven equilibria and 26 periodic orbits, all new and linearly unstable.…Zheng Zheng, Laurette S. Tuckerman, Tobias M. Schneider·Apr 7, 2025SaveLearn
Thermal-diffusive instabilities in unstretched, planar diffusion flamesOur recent development of a novel research burner has made it possible to experimentally investigate truly unstretched and planar diffusion flames. Hence it has become feasible to directly validate…Etienne Robert, Peter A. Monkewitz·Apr 7, 2025SaveLearn
A mass invariant in a compressible turbulent mediumPredicting the measurable statistical properties of density fluctuations in a supersonic compressible turbulent flow is a major challenge in physics. In 1951, Chandrasekhar derived an invariant under…Pierre Dumond, Jérémy Fensch, Gilles Chabrier et al.·Apr 7, 2025SaveLearn
A simulation modeling framework for fluid motion and transport in a rocking bioreactor with application to cultivated meat productionRocking or wave-mixed bioreactors have emerged as a promising innovation in the production of cultivated meat due to their disposable nature, low operating costs, and scalability. However, despite…Minki Kim, Daniel M. Harris, Radu Cimpeanu·Apr 7, 2025SaveLearn
Multi-scale analysis of flow over heterogeneous urban environmentsA computationally efficient multi-scale planar-averaging framework for urban areas is developed, which enables efficient computation of coarse-grained velocity and scalar fields. We apply the…Maarten van Reeuwijk, Jingzi Huang·Apr 7, 2025SaveLearn