CFD Simulation of an Industrial Dust Cyclone Separator: A Comparison with Empirical Models: The Influence of the Inlet Velocity and the Particle Size on Performance Factors in Situ... by Tchinda Vermande Paganel, Epee Fabrice Alban, Mezoue Adiang Cyrille, Claude Valery Ngayihi Abbe

“…In this work, the effect of inlet velocity and the particle size on the turbulent flow air in the cyclone is presented. Numerical simulation of the flow by Fluent code using three numerical models: the first based on the dissipation of kinetic energy by viscosity (RNG) K-epsilon and standard K-epsilon as well as the last based on the solution of Reynolds stress equations (RSM), combined with the multiphase mixing model, gave interesting results in terms of the pressure and flow field in the separator, the variation of inlet velocity, and the variation of particle size. …”
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Uncertainties in the finite-time Lyapunov exponent in an ocean ensemble prediction model by M. Matuszak, J. Röhrs, P. E. Isachsen, P. E. Isachsen, M. Idžanović

“…Generally, trajectory simulations, such as Lagrangian trajectories, inherit uncertainty from the underlying ocean model, bearing substantial uncertainties as a result of chaotic and turbulent flow fields. As the FTLE characterizes the flow, which may impact particle transport, we aim to investigate the uncertainty of FTLE fields at any given time using an ensemble prediction system (EPS) to propagate velocity field uncertainty into the FTLE analysis. …”
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Numerical Simulation of CAARC Standard High-Rise Building Model Based on MRT-LBM Large Eddy Simulation by Rui Zhao, Zehua Feng, Danhui Dan, Yuhang Wu, Xianduo Li

“…It is proved that the numerical solutions of the three models are in good agreement with the experimental solutions, and the real subgrid eddy viscosity near the wall can be obtained, which can accurately predict the development of turbulent flow.…”
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Application of the Correlation Velocity Measurements for Hydrodynamic Investigations of Turbulent Coolant Flow in Nuclear Reactor Elements by I. A. Konovalov, A. E. Khrobostov, M. A. Legchanov, D. N. Solncev, A. A. Barinov, A. V. Ryazanov, A. A. Chesnokov, M. A. Makarov

“…The measured velocity values give acceptable agreement for the turbulent flow modes. It was shown that the measurement accuracy drops sharply for low-Reynolds flows.The obtained results were used for flowrate measurements in core-imitator channels of the nuclear reactor test model. …”
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Assessing the salinization mechanisms of coastal brackish springs by Sanz, Esteban, Carrera, Jesús, Ayora, Carlos, Barón, Alfredo, González, Concha

“…To this end, we derive the equations governing variable-density turbulent flow through the conduits. These turn out to be similar to the traditional ones, except that (1) Bernouilli’s head (energy per unit weight) is substituted by the energy per unit volume, and (2) this energy is not a potential, as a flow path dependent term needs to be added. …”
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3D modelling and simulation of thermal effects and dispersion of particles carrying infectious respiratory agents in a railway transport coach by Patrick Armand, Jérémie Tâche

“…In the first part of our research, we used Computational Fluid Dynamics (CFD) to model and simulate in 3D the transport and dispersion of particles from 1 µm to 1 mm in the turbulent flow generated by the ventilation of the railway coach. …”
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A comparative filling materials study on microstructure and mechanical properties of welded joints of dissimilar Al–Mg–Si alloys using CMT-laser beam oscillation hybrid welding by H.Y. Shen, J.M. Yu, L. Wang, F. Vogel, C.J. Li, H. Nagaumi

“…Microstructural analysis revealed a distinct layered structure on the 6061 side, contributing to a hard-soft microstructural configuration that enhances ductility, with fracture strains of 3.4% for ER4047 and 4.8% for ER5183. In this study, turbulent flow dominates over previously proposed laminar flow, but a prolonged duration for complete solute mixing is still required, leading to the persistent presence of unmixed and partially mixed zones in the liquid weld pool before solidification. …”
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Turbulence modeling and simulation advances in CFD during the past 50 years by Schiestel, Roland, Chaouat, Bruno

“…This paper is a short retrospective review of the predictive methods of turbulent flows in Computational Fluid Dynamics over the last 50 years since the first development of computers. …”
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Experimental and Computational Fluid Dynamics: decades of turbulent EFD/CFD complementarity by Bonnet, Jean Paul

“…An overview of the parallel evolution of computations and experiments in fluid dynamics in the context of turbulent flows is given, viewed from an experimental side. …”
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Simultaneous Invariants of Strain and Rotation Rate Tensors and Their Admitted Region by Igor Vigdorovich, Holger Foysi

“…The theory provided inside this paper is the building block for a derivation of new algebraic constitutive relations for three-dimensional turbulent flows in the form of expansions of the Reynolds-stress tensor in a tensorial basis formed by the tensors S and Ω, in which the scalar coefficients depend on simultaneous invariants of these tensors.…”
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Effect of Pitch Angle on Structural and Aerodynamic Characteristics of Vertical-Axis Wind Turbines (VAWTs) Using Leading-Edge Protuberance Blades by Karthikvel Elangovan, S. Nadaraja Pillai

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On the Stochastic 3D Navier-Stokes-α Model of Fluids Turbulence by Gabriel Deugoue, Mamadou Sango

“…We investigate the stochastic 3D Navier-Stokes-α model which arises in the modelling of turbulent flows of fluids. Our model contains nonlinear forcing terms which do not satisfy the Lipschitz conditions. …”
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CFD for turbulence: from fundamentals to geophysics and astrophysics by Cambon, Claude, Alvarez Laguna, Alejandro, Zhou, Ye

“…Over the years, the combination of computational fluid dynamics (CFD) and theoretical models have critically contributed to improving our understanding of the nature of turbulent flows. In this paper, we review the role of CFD in the study of turbulence through both direct numerical simulations and the resolution of statistical multi-scale theories. …”
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Heat Transfer Calculation on Plate-Type Fuel Assembly of High Flux Research Reactor by Daxin Gong, Shanfang Huang, Guanbo Wang, Kan Wang

“…Heat transfer characteristics of fuel assemblies for a high flux research reactor with a neutron trap are numerically investigated in this study. Single-phase turbulence flow is calculated by a commercial code, FLUENT, where the computational objective covers standard and control fuel assemblies. …”
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A Few Remarks on the Poetics of Turbulence in Richard Powers’ Operation Wandering Soul by Jean-Yves Pellegrin

“…In Richard Powers’ Operation Wandering Soul, the conventional linearity of narrative gives way to a type of discontinuity and circularity that is reminiscent of the unpredictable movement of turbulent flows. This paper suggests that such turbulence enacts a new way of writing and reading narrative. …”
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Analytical Solution of Heat Conduction from Turbulence with an Isotropic Example by Steven A. E. Miller

“…The developed theory can easily be applied to other turbulent flows if the statistics of unsteady motion can be estimated.…”
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Turbulent System Dynamics: An Introduction to Spectral Decomposition and External Forcing in Sobolev Spaces by Rômulo Damasclin Chaves dos Santos, Jorge Henrique de Oliveira Sales

“…The first theorem establishes a spectral decomposition of the velocity correlation function, shedding light on the coherent and incoherent structures within turbulent flows. The second theorem delves into the energy distribution in Sobolev spaces, providing insights into the regularity and properties of turbulent solutions. …”
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Proper Orthogonal Decomposition as Surrogate Model for Aerodynamic Optimization by Valentina Dolci, Renzo Arina

“…The proposed method is applied to subsonic turbulent flows and the proper orthogonal decomposition is based on an ensemble of high-fidelity computations. …”
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Navier-Stokes: Singularities and Bifurcations by Rômulo Damasclin Chaves dos Santos, Jorge Henrique de Oliveira Sales

“…Additionally, we discuss how these theoretical advancements offer new approaches to unresolved problems related to the formation of singularities in turbulent flows and the multiscale behavior of solutions, which are crucial for a comprehensive understanding of fluid dynamics. …”
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Exploring the Complex Heliotail Boundary by an Extended Level Set Approach by C. Onubogu, M. Opher, M. Kornbleuth, G. Tóth, V. Florinski

“…We find that the f _HP = 0 criterion, the standard heliopause definition used by other models to determine where solar wind and interstellar plasma meet, is impacted in the heliotail, where there is a broad mixing region of solar wind and interstellar medium plasma, by the nature of turbulent flows in the heliotail. We explore a different isosurface, defined by f _HP = 0.99, where the interface is composed of 99.5% solar wind and 0.50% interstellar medium. …”
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