Asymptotic Behavior of a Buoyant Jet Regime inside a Carbon-dioxide EjectorEjectors are used in various engineering systems, including steam and vapor compression cycles. Optimizing the performance of ejectors requires understanding and analysis of multiphase and turbulent…Sreetam Bhaduri, Ivan C. Christov, Eckhard A. Groll et al.·Jun 29, 2025SaveLearn
Unsteady solutions of the spray flamelet equationsSolutions of the spray flamelet equations reported in the literature during the last decade have been limited to very specific situations presenting steady evaporation profiles only. In contrast,…Felipe Huenchuguala, Francisco Rivadeneira, Arne Scholtissek et al.·Jun 29, 2025SaveLearn
Lagrangian Finite-Time Fluctuation Relation in isotropic turbulenceThe entropy generation rate in turbulence can be defined using the energy cascade rate as described in the scale-integrated Kolmogorov-Hill equation at a specified length scale. The fluctuation…Hanxun Yao, Tamer A. Zaki, Charles Meneveau·Jun 29, 2025SaveLearn
Importance of the numerical schemes in the CFD of the human noseComputational fluid dynamics of the air flow in the human nasal cavities, starting from patient-specific Computer Tomography (CT) scans, is an important tool for diagnostics and surgery planning.…Andrea Schillaci, Maurizio Quadrio·Jun 29, 2025SaveLearn
Improving Spatio-Temporal Accuracy of the Stochastic Particle Fokker-Planck ModelAccurate prediction of rarefied gas flows is important for space vehicle design, particularly in rarefied regimes where the Navier-Stokes equations are no more valid. While the direct simulation…Joonbeom Kim, Eunji Jun·Jun 29, 2025SaveLearn
On how walls shape dissipation intermittencyIntermittency of energy dissipation has long been studied via high-order moments in homogeneous and isotropic turbulence, but not much where the boundary effects are explicitly included. Here, we…Peng-Yu Duan, Xi Chen, Katepalli R. Sreenivasan·Jun 28, 2025SaveLearn
Effective viscosity closures for dense suspensions in CSP systems via lubrication-enhanced DNS and numerical viscometryDense particle suspensions are promising candidates for next-generation Concentrated Solar Power (CSP) receivers, enabling operating temperatures above 800 degrees C. However, accurate modeling of…Raphael Münster, Otto Mierka, Dmitri Kuzmin et al.·Jun 28, 2025SaveLearn
Inclined flow of a second-gradient incompressible fluid with pressure-dependent viscosityMany viscous liquids behave effectively as incompressible under high pressures but display a pronounced dependence of viscosity on pressure. The classical incompressible Navier-Stokes model cannot…C. Balitactac, C. Rodriguez·Jun 27, 2025SaveLearn
Surface curvature and secondary vortices in steady dense shallow granular flowsDense granular flows exhibit both surface deformation and secondary flows due to the presence of normal stress differences. Yet, a complete mathematical modelling of these two features is still…C. Gadal, C. G. Johnson, J. M. N. T. Gray·Jun 27, 2025SaveLearn
Exact coherent structures with dilute particle suspensionsThe physics of settling suspensions under shear are investigated by theoretical and numerical analyses of unstable equilibrium solutions to the incompressible Navier-Stokes equations, coupled with an…Jake Langham, Andrew J. Hogg·Jun 27, 2025SaveLearn
Hydrodynamic interactions of low-aspect-ratio oscillating panels in a tip-to-tip formationThe vertical, tip-to-tip arrangement of neighboring caudal fins, common in densely packed fish schools, has received much less attention than staggered or side-by-side pairings. We explore this…Yu Pan, Yuanhang Zhu, Elizabeth Westfall et al.·Jun 27, 2025SaveLearn
Spontaneous generation of helical flows by salt fingersWe study the dynamics of salt fingers in the regime of slow salinity diffusion (small inverse Lewis number) and strong stratification (large density ratio), focusing on regimes relevant to Earth's…Adrian E. Fraser, Adrian van Kan, Edgar Knobloch et al.·Jun 27, 2025SaveLearn
Higher-order homogenised riblet boundary conditionsThe description of riblets and other drag-reducing devices has long used the concept of longitudinal and transverse protrusion heights, both as a means to predict the drag reduction itself and as…Paolo Luchini, Daniel Chung·Jun 27, 2025SaveLearn
A Multi-Species Enskog-Vlasov Solver to Determine Evaporation Coefficients of Fluids in High Pressure EnvironmentsThis paper introduces a novel multi-species Enskog-Vlasov solver. It is used to determine evaporation coefficients of fluids under high-pressure conditions, a critical factor for efficient fuel…Raphael Tietz, Rolf Stierle, Kim Sophie Ellenberger et al.·Jun 27, 2025SaveLearn
Scale-resolved turbulent Prandtl number for Rayleigh-B\'enard convection at Pr =10-3We present a framework to calculate the scale-resolved turbulent Prandtl number Prt for the well-mixed and highly inertial bulk of a turbulent Rayleigh-B\'enard mesoscale convection layer at a…Shashwat Bhattacharya, Dmitry Krasnov, Ambrish Pandey et al.·Jun 27, 2025SaveLearn
A features-embedded-learning immersed boundary model for large-eddy simulation of turbulent flows with complex boundariesThe hybrid wall-modeled large-eddy simulation (WMLES) and immersed boundary (IB) method offers significant flexibility for simulating high Reynolds number flows involving complex boundaries. However,…Zhideng Zhou, Fengshun Zhang, Xiaolei Yang·Jun 27, 2025SaveLearn
A GENERIC-guided active learning SPH method for viscoelastic fluids using Gaussian process regressionWhen applying machine learning methods to learn viscoelastic constitutive relations, the polymer history dependence in viscoelastic fluids and the generalization ability of machine learning models…Xuekai Dong, David Nieto Simavilla, Jie Ouyang et al.·Jun 27, 2025SaveLearn
Tracking the rotation of light magnetic particles in turbulenceParticle-laden turbulence involves complex interactions between the dispersed and continuous phases. Given that particles can exhibit a wide range of properties, such as varying density, size, and…Chunlai Wu, Rudie P. J. Kunnen, Ziqi Wang et al.·Jun 26, 2025SaveLearn
Vortex-Induced Drag Forecast for Cylinder in Non-uniform InflowIn this letter, a physics-based data-driven strategy is developed to predict vortex-induced drag on a circular cylinder under non-uniform inflow conditions - a prevalent issue for engineering…Jiashun Guan, Haoyang Hu, Tianfang Hao et al.·Jun 26, 2025SaveLearn
Static Contact Angles of Mixtures: Classical Density Functional Theory and Experimental InvestigationThis work assesses a classical density functional theory (DFT) model for predicting macroscopic static contact angles of pure substances and mixtures by comparison to own experimental data. We employ…Benjamin Bursik, Nikolaos Karadimitriou, Holger Steeb et al.·Jun 26, 2025SaveLearn
Topological entropy of stationary three-dimensional turbulenceTopological entropy serves as a viable candidate for quantifying mixing and complexity of a highly chaotic system. Particularly in turbulence, this is determined as the exponential stretching rate of…Ankan Biswas, Amal Manoharan, Ashwin Joy·Jun 26, 2025SaveLearn
Computational simulation of thermal processes in ncs production plantsThis paper develops a computational simulation of the fluid dynamics and heat transfer phenomena that occur inside combustion chamber, and flat and semispherical open evaporators used in NCS…Pablo Cortes, Omar Lopez, Ramiro Medina et al.·Jun 25, 2025SaveLearn
Impact of the history force on the motion of droplets in shaken liquidsDroplets, solid particles, and gas bubbles in unsteady flows experience the Basset-Boussinesq history force (BBH) in addition to steady viscous drag, added mass, and buoyancy. Although physically…Frederik R. Gareis, Walter Zimmermann·Jun 25, 2025SaveLearn
Reinforcement Learning Increases Wind Farm Power Production by Enabling Closed-Loop Collaborative ControlTraditional wind farm control operates each turbine independently to maximize individual power output. However, coordinated wake steering across the entire farm can substantially increase the…Andrew Mole, Max Weissenbacher, Georgios Rigas et al.·Jun 25, 2025SaveLearn
Mixing of Gaussian Solute PlumesWe consider the general problem of mixing of Gaussian solute plumes arising across a range of different flows ranging from two-dimensional (2D) to three-dimensional (3D), steady to unsteady, regular…Daniel Lester·Jun 25, 2025SaveLearn