Academic literature on the topic 'Turbulent two-Phase flows'

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Journal articles on the topic "Turbulent two-Phase flows"

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Anand, Abhirath, Christian Poelma, and Angeliki Laskari. "LED-based PIV Of A Particle-Laden Turbulent Free-Surface." Proceedings of the International Symposium on the Application of Laser and Imaging Techniques to Fluid Mechanics 21 (July 8, 2024): 1–14. http://dx.doi.org/10.55037/lxlaser.21st.50.

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An experimental method is proposed to study dispersed two-phase flows at an airwater interface, a family of flows of practical significance in environmental and industrial settings. The applicability of this technique is demonstrated through the study of a lightly-deformed turbulent free-surface laden with floating particles (`floaters'). A low-mean turbulent flow is generated in a turbulence box actuated by a 10×10 synthetic jet array. Using LEDs and a single camera, free-surface flow measurements are carried out by Particle Image Velocimetry (PIV) simultaneously with Lagrangian tracking of the float
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Shabani, Saman, Amir Abass Abedini, and Ali Mohammadtabar. "The Effect of the Pipe Bending Angle on the Pressure Losses Vane Elbow Pipes." Asian Review of Civil Engineering 8, no. 1 (2019): 1–8. http://dx.doi.org/10.51983/tarce-2019.8.1.2287.

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Pressure loss is one of the significant parameters in designing pipe bends. In this paper, the pressure distribution and pressure losses induced by turbulent flows in a circular cross-sectioned piping elbow with or without guide vane were simulated. The flow distribution in the piping elbow was simulated by the k- model using control volume method. The main objective of this study is to characterize the effect of changing the angle of pipe bend and Reynolds number on the flow separation of single-phase turbulent flow through numerical simulation. Results were validated by other experimental res
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Semwogerere, Twaibu, R. Awichi, J. D. Lwanyaga, Esemu Joseph Noah, Verdiana G. Masanja, and H. Nampala. "An Application of Computational Fluid Dynamics to Optimize Municipal Sewage Networks; A Case of Tororo Municipality, Eastern Uganda." JOURNAL OF ADVANCES IN MATHEMATICS 18 (January 10, 2020): 18–27. http://dx.doi.org/10.24297/jam.v18i.8345.

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Two-phase pipe flow is a common occurrence in many industrial applications such as sewage, water, oil, and gas transportation. Accurate prediction of liquid velocity, holdup and pressure drop is of vast importance to ensure effective design and operation of fluid transport systems. This paper aimed at the simulation of a two-phase flow of air and sewage (water) using an open source software OpenFOAM. Numerical Simulations have been performed using varying dimensions of pipes as well as their inclinations. Specifically, a Standard k- turbulence model and the Volume of Fluid (VOF) free water surface
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AL HASHMİ, Sulaiman, and Mingjie CHEN. "Thermal analysis of phase change materials storage in solar concenter." Journal of Energy Systems, July 18, 2023, 302–13. http://dx.doi.org/10.30521/jes.1082104.

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Thermal analysis of high-temperature phase change materials (PCM) is conducted with the consideration of a 20% void and buoyancy-driven convection in a stainless-steel capsule. The effects of the thermal expansion and the volume expansion due to phase change on the energy storage and retrieval process are explored. The used water to fill the void between two different wax paraffin and stearic acid spheres is considered as a potential PCM for concentrated solar power. The charging/discharging process into and from the capsule wall is simulated under different boundary conditions for laminar and
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Dissertations / Theses on the topic "Turbulent two-Phase flows"

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Guaquiere, Charles. "Modélisation de la diffusion de particules issues du freinage ferroviaire : application au réseau souterrain." Electronic Thesis or Diss., Valenciennes, Université Polytechnique Hauts-de-France, 2024. http://www.theses.fr/2024UPHF0050.

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La question de la qualité de l'air est un enjeu de santé publique crucial qui se pose dans les grandes métropoles, à mesure que les activités humaines deviennent de plus en plus polluantes. Selon l’OMS, en diminuant les niveaux de pollution atmosphérique, les pays peuvent réduire la charge de morbidité imputable aux accidents vasculaires cérébraux, aux cardiopathies, au cancer du poumon et aux infections respiratoires. Le transport ferroviaire est à juste titre considéré comme étant une solution de mobilité durable à faible impact en gaz à effet de serre et un faible contributeur aux émissions
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Fintzi, Nicolas. "Statistical modeling of disperse two-phase flows : application to buoyancy-driven droplets suspensions". Electronic Thesis or Diss., Sorbonne université, 2025. http://www.theses.fr/2025SORUS057.

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Les écoulements de gouttes entraînés par la flottabilité se rencontrent dans de nombreux procédés de génie chimique, tels que les séparateurs gravitaires et les extracteurs liquide-liquide. Ces systèmes présentent une large gamme d'échelles, allant de la taille des inclusions individuelles (aussi petites que quelques micromètres) à celle des réacteurs (souvent supérieure à un mètre), ce qui rend les simulations entièrement résolues impossibles à réaliser avec les ressources informatiques actuelles. Par conséquent, les pratiques actuelles de modélisation reposent sur l'utilisation des équations
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Hannebique, Grégory. "Etude de la structure des flammes diphasiques dans les brûleurs aéronautiques." Thesis, Toulouse, INPT, 2013. http://www.theses.fr/2013INPT0026/document.

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La régulation des polluants a mené à la création de nouveaux systèmes de combustion. Le carburant étant stocké sous forme liquide, sa transformation jusqu’à sa combustion est complexe. La capacité de la Simulation aux grandes échelles à simuler des écoulements turbulents réactifs a été montrée sur des cas académiques comme sur des configurations industrielles, tout en prenant en compte les phénomènes multiphysiques intervenant dans ces configurations, mais les études sur la structure de flamme diphasique sont encore trop peu nombreuses. La présence de deux solveurs pour la simulation d’une pha
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