Results 11 to 20 of about 12,462 (276)

Computational fluid dynamics modelling of residence times in vegetated stormwater ponds [PDF]

Proceedings of the Institution of Civil Engineers - Water Management, 2018
Experimental data characterising dispersion within Typha latifolia were previously collected in a laboratory setting. This mixing characterisation was combined with previously proposed computational fluid dynamics modelling approaches to predict residence time distributions for vegetated stormwater treatment pond layouts (including a wetland) derived ...
Sonnenwald, F.C., Guymer, I., Stovin, V.
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The Use of Optimized Restitution Coefficients to Improve Residence Time Prediction in Computational Fluid Dynamics-Discrete Parcel Method Models for Counter-Current Spray Dryers [PDF]

Industrial & Engineering Chemistry Research, 2021
This work studies the dispersion of solids in the cold isothermal operation of swirl counter current spray dryers. Residence time distributions (RTDs) of glass beads and detergent powder are obtained in a semi-industrial unit under varying Reynolds and ...
Borja Hernandez, Victor Francia, Mark Crosby, Hossein Ahmadian, Prashant Gupta, Luis Martin de Juan, Mariano Martin   +6 more
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Computational Fluid Dynamics Modeling of a Bench-scale Pump−Mixer:  Head, Power and Residence Time Distribution

Industrial & Engineering Chemistry Research, 2007
The present work involves several single-phase computational fluid dynamics (CFD) simulations of a continuous-flow bench-scale pump−mixer that uses a top-shrouded turbine with trapezoidal blades. Baffle−impeller interaction has been modeled using the sliding-mesh approach. The standard k−e model has been used for turbulence modeling.
SINGH, KK, MAHAJANI, SM, SHENOY, KT, GHOSH, SK   +3 more
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Optimizing Wastewater Treatment Reactor Design Using Computational Fluid Dynamics: Impact of Geometrical Parameters on Residence Time and Pollutant Degradation

ChemEngineering
This study investigates the impact of equipment geometry on residence time distribution (RTD) using computational fluid dynamics (CFD) methods in a wastewater treatment tank with different configurations of static mixer elements.
Bálint Levente Tarcsay, Janka Kincses, László Balogh, András Kámán, Lajos Nagy, Attila Egedy   +5 more
doaj   +2 more sources

Deeper Flow Behavior Explanation of Temperature Effects on the Fluid Dynamic inside a Tundish

Fluids
The continuous casting tundish is non-isothermal due to heat losses and temperature variation from the inlet stream, which generate relevant convection forces. This condition is commonly avoided through qualitative fluid dynamic analysis only.
Enif Gutiérrez, Saul Garcia-Hernandez, Rodolfo Morales Davila, Jose de Jesus Barreto   +3 more
doaj   +2 more sources

Computational Fluid Dynamics Simulation for Controllable Residence Time Distribution in a Slug Flow Crystallizer

Crystal Growth & Design
Recently, slug-flow crystallizers have been proposed for controlling the product quality and generating uniform crystals. However, there is still a lack of understanding of the residence time distribution (RTD) of slug flow with liquid films.
Chaeeun Lee, Mingyao Mou, Sunuk Kim, Mo Jiang, Jonggeol Na   +4 more
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Quantification of Particle Residence Time in Abdominal Aortic Aneurysms Using Magnetic Resonance Imaging and Computational Fluid Dynamics [PDF]

Annals of Biomedical Engineering, 2010
Hemodynamic conditions are hypothesized to affect the initiation, growth, and rupture of abdominal aortic aneurysms (AAAs), a vascular disease characterized by progressive wall degradation and enlargement of the abdominal aorta. This study aims to use magnetic resonance imaging (MRI) and computational fluid dynamics (CFD) to quantify flow stagnation ...
Ga-Young, Suh, Andrea S, Les, Adam S, Tenforde, Shawn C, Shadden, Ryan L, Spilker, Janice J, Yeung, Christopher P, Cheng, Robert J, Herfkens, Ronald L, Dalman, Charles A, Taylor   +9 more
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Validation of a Computational Fluid Dynamics Model for a Novel Residence Time Distribution Analysis in Mixing at Cross-Junctions [PDF]

Water, 2018
In Water Distribution Networks, the chlorine control is feasible with the use of water quality simulation codes. EPANET is a broad domain software and several commercial computer software packages base their models on its methodology. However, EPANET assumes that the solute mixing at cross-junctions is “complete and instantaneous”. Several authors have
Daniel Hernández-Cervantes, Xitlali Delgado-Galván, José L. Nava, P. Amparo López-Jiménez, Mario Rosales, Jesús Mora Rodríguez   +5 more
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Computational fluid dynamics (CFD) simulation of a gas-solid fluidized bed: Residence time validation study

Journal of Chemical Engineering and Materials Science, 2022
In this work, the business Computational Fluid Dynamics (CFD) is used for the numerical simulations of an air-solid fluidized bed container in the solid phase involving a multi-fluid Eulerian multiphase model and the Kinetic Theory of Granular Flow (KTGF). The height of the fluidized bed setup is 1.5 m while its diameter is 0.2 m.
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A comparative study between CFD and FSI hemodynamic parameters in a patientspecific giant saccular cerebral aneurysm [PDF]

AUT Journal of Modeling and Simulation, 2021
Nowadays, biomechanical methods are useful to identify the cause and treating of diseases. One of these diseases is the cerebral aneurysm. This disease starts by the inflation of artery wall and then by rupturing, it leads to intracranial hemorrhage ...
Reza Abdollahi, Bahman Vahidi, Pejman Shojaee, Mohammad Karimi   +3 more
doaj   +1 more source