Oscillatory flows in three-dimensional deformable microchannelsDeformable microchannels emulate a key characteristic of soft biological systems and flexible engineering devices: the flow-induced deformation of the conduit due to slow viscous flow within.…Anxu Huang, Shrihari D. Pande, Jie Feng et al.·Apr 7, 2025SaveLearn
Kinetic study of compressible Rayleigh-Taylor instability with time-varying accelerationRayleigh-Taylor (RT) instability commonly arises in compressible systems with time-dependent acceleration in practical applications. To capture the complex dynamics of such systems, a two-component…Huilin Lai, Chuandong Lin, Hao Xu et al.·Apr 7, 2025SaveLearn
Universal scaling laws of boundary-driven turbulenceTurbulence is a fundamental flow phenomenon, typically anisotropic at large scales and approximately isotropic at small scales. The classical Kolmogorov scaling laws (2/3, -5/3 and 4/5) have been…Yong-Ying Zeng, Zi-Ju Liao, Jun-Yi Li et al.·Apr 7, 2025SaveLearn
Morphological Effects on Bacterial Brownian Motion: Validation of a Chiral Two-Body ModelWe systematically investigate how flagellar morphology governs the stability of bacterial Brownian motion, evaluating the effectiveness of a simplified chiral two-body model. This model, which…Baopi Liu, Bowen Jin, Lu Chen et al.·Apr 7, 2025SaveLearn
Optimizing flow control with ensemble Kalman method for mitigating flow-induced vibrationThe ensemble Kalman method is introduced for optimizing flow control strategies in order to mitigate the flow-induced vibration of structures. Different types of control strategies such as passive…Liu Yi, Wang Shizhao, Zhang Xin-Lei et al.·Apr 7, 2025SaveLearn
Effects of Surface Corrugation on Gas-Surface Scattering and Macroscopic FlowsGas-surface scattering exhibits a transition from thermal to structure scattering regime as incident energy increases, characterized by changes in angular and energy distributions. Capturing…Woonghwi Park, Eunji Jun·Apr 7, 2025SaveLearn
Analysis of inertial-range intermittency in forward and inverse cascade regions in isotropic turbulenceIn order to test the hypothesis that inverse cascade regions in turbulent flows might exhibit more Gaussian noise-like and less intermittent small-scale statistics compared to the overall statistics,…H. Yao, M. Schnaubelt, A. Lubonja et al.·Apr 6, 2025SaveLearn
The effects of temperature and viscosity on the metachronal swimming of crustaceansTemperature changes as small as 3 have been observed to significantly impact how self-propelled organisms move through their environment, especially for those inhabiting the transitional…Adrian Herrera-Amaya, Nils B. Tack, Zhipeng Lou et al.·Apr 5, 2025SaveLearn
Structure and scaling of inclined gravity currentsWe explore the fundamental flow structure of inclined gravity currents with direct numerical simulations. A velocity maximum naturally divides the current into inner and outer shear layers, which are…Lianzheng Cui, Graham O. Hughes, Maarten van Reeuwijk·Apr 5, 2025SaveLearn
Experimental study of velocity statistics in wall-bounded turbulent emulsionsTurbulent emulsions are ubiquitous in chemical engineering, food processing, pharmaceuticals, and other fields. However, our experimental understanding of this area remains limited due to the…Yaning Fan, Yi-Bao Zhang, Jinghong Su et al.·Apr 5, 2025SaveLearn
Physical significance of artificial numerical noise in direct numerical simulation of turbulenceUsing clean numerical simulation (CNS) in which artificial numerical noise is negligible over a finite, sufficiently long interval of time, we provide evidence, for the first time, that artificial…Shijun Liao, Shijie Qin·Apr 5, 2025SaveLearn
Vortex transition and thermal mixing by pitching a perforated flexible panelThe effective transport of heat and mass is crucial to both industrial applications and physiological processes. Recent research has evaluated the benefit of using flexible reeds for triggering the…Yicong Fu, Zhengyang Liu, Samir Tandon et al.·Apr 4, 2025SaveLearn
Dimensionless learning based on informationDimensional analysis is one of the most fundamental tools for understanding physical systems. However, the construction of dimensionless variables, as guided by the Buckingham-π theorem, is not…Yuan Yuan, Adrián Lozano-Durán·Apr 4, 2025SaveLearn
A posteriori closure of turbulence models: are symmetries preserved?Turbulence modeling remains a longstanding challenge in fluid dynamics. Recent advances in data-driven methods have led to a surge of novel approaches aimed at addressing this problem. This work…André Freitas, Kiwon Um, Mathieu Desbrun et al.·Apr 4, 2025SaveLearn
Griffin Plots of vortex-induced vibrations: revealing self-similarity for quick estimation from transient displacement responsesGriffin plot relates the peak amplitudes of vortex-induced vibration to structrual mass-damping parameter, known as the Scruton number. Griffin plot serves as a fundamental tool in many engineering…Guangzhong Gao, Suhan Li, Jianming Hao et al.·Apr 4, 2025SaveLearn
Passive scalar dispersion along porous stratum with natural convectionWe investigate horizontal dispersion of a passive scalar in a porous stratum with Rayleigh-Darcy convection initiated by a geothermal gradient. While increasing Rayleigh number (Ra) keeps enhancing…Chenglong Hu, Ke Xu, Yantao Yang·Apr 4, 2025SaveLearn
Multiple Equilibria Enables Tunable Wetting of Droplets on Patterned Liquid SurfacesPatterning solid surfaces with varying wettability is important to manage droplets in microfluidics, heat transfer and printing. Solid surface roughness poses fundamental limitations including…Xitong Zhang, Hongyu Zhao, Jack R. Panter et al.·Apr 4, 2025SaveLearn
Turbulence transport in moderately dense gas--particle compressible flowsThis study employs three-dimensional particle-resolved simulations of planar shocks passing through a suspension of stationary solid particles to study wake-induced gas-phase velocity fluctuations,…Archana Sridhar, Rodney O. Fox, Jesse Capecelatro·Apr 3, 2025SaveLearn
Modelling Interfacial Dynamics Using Hydrodynamic Density Functional Theory: Dynamic Contact Angles and the Role of Local ViscosityHydrodynamic density functional theory (DFT) is applied to analyse dynamic contact angles of droplets in order to assess its predictive capability regarding wetting phenomena at the microscopic scale…Benjamin Bursik, Rolf Stierle, Hamza Oukili et al.·Apr 3, 2025SaveLearn
Two-dimensional turbulent condensates without bottom dragThe extent to which statistical equilibrium theory is applicable to driven dissipative dynamics remains an important open question in many systems. We use extensive direct numerical simulations of…Adrian van Kan, Alexandros Alexakis, Edgar Knobloch·Apr 3, 2025SaveLearn
Elastic instability of wormlike micelle solution flow in serpentine channelsWormlike micelle (WLM) solutions are abundant in energy, environmental, and industrial applications, which often rely on their flow through tortuous channels. How does the interplay between fluid…Emily Y. Chen, Sujit S. Datta·Apr 3, 2025SaveLearn
Stability of acoustic streaming jetsWe study the stability of a steady Eckart streaming jet that is acoustically forced at one end of a closed cylindrical cavity and impinges the wall at the other end, where a recirculation forms. This…Bjarne Vincent, Abhishek Kumar, Daniel Henry et al.·Apr 3, 2025SaveLearn
Enhanced Permeability Estimation in Microporous Rocks Using a Hybrid Macropore-Darcy ApproachThis study presents a novel workflow for constructing hybrid macropore-Darcy models from micro-CT images of microporous rocks. In our approach, macropore networks are extracted using established…Dmytro Petrovskyy, Julien Maes, Hannah P. Menke et al.·Apr 3, 2025SaveLearn
Numerical simulations of the pressure-driven flow of pairs of rigid spheres in elastoviscoplastic fluidsWe investigate through numerical simulations the hydrodynamic interactions between two rigid spherical particles suspended on the axis of a cylindrical tube filled with an elastoviscoplastic fluid…Giancarlo Esposito, John Tsamopoulos, Massimiliano Maria Villone et al.·Apr 3, 2025SaveLearn
Optimal and suboptimal spatiotemporal dynamics of multi-shear-layers in rectangular jetWe analyze the perturbation dynamics of a complex supersonic multi-stream rectangular jet. The dynamics are examined through application of spectral proper orthogonal decomposition (SPOD) to elicit…Mitesh Thakor, Datta V. Gaitonde, Yiyang Sun·Apr 2, 2025SaveLearn