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Showing 1 to 9 of 9 for “"Particle Drag"”.
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Modeling multiphase solid transport velocity in long subsea tiebacks: numerical and experimental methods.
… pattern changes, phase velocity, pressure drop, particle drag and lift forces, sand/liquid/gas holdup, flow rate requirement, and tieback sizing etc. at the early design phase and during operation for process optimisation. This research investigated sand transport characteristics in multiphase, …
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Numerical modeling of cold flow and hot gas desulfurization in a circulating fluidized bed
… takes into account the effect of micro-scale particle clustering by adjusting the gas-particle drag law and the second one assumes a turbulent core with pseudo-steady state boundary condition at the wall. A comparison is made with experimental results.
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LES of Jets and Sprays Injected into Crossflow
… of the fuel droplets is treated by Lagrangian particle tracking (LPT) with the stochastic parcel method, along with submodels for evaporation, collision, breakup, and a novel submodel for aerodynamic four-way coupling: The particle drag is corrected depending on relative positions of the …
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Investigation of Particle Velocity and Drag with Spherical and Non-Spherical Particles Through a Backward Facing Step
… applications exist where dispersed solid particles are transported within a turbulent accelerating or decelerating gaseous flow. The large density variation between phases creates the potential for significant differences in velocity known as velocity slip. Flow over a backward facing step …
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Deep Learning Methods for Predicting Fluid Forces in Dense Particle Suspensions
… cracking etc. Accurate modelling of the fluid-particle forces is essential for lab-scale and industry-scale simulations. Fluid-particle system solutions can be obtained using various techniques including the macro-scale TFM (Two fluid model), the meso-scale CFD-DEM (CFD - Discrete Element …
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Applications of Data-Driven Learning Models in Fluid Mechanics: Solid-Fluid Multiphase Systems and Bat Flight
… and biological systems, encompassing particle-laden flows in chemical processing, urban airflow, and biological locomotion. Understanding and studying these interactions is essential for optimizing engineering designs and advancing scientific knowledge. This thesis explores three …
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Experimental Investigation of Particle Lag behind a Shock Wave using a Novel Laser Doppler Accelerometer
Determination of particle slip is a major concern for particle based measurements in un- heated supersonic facilities, as it is a limiting factor for the instruments' frequency response. For the purpose of determining the particle deceleration through a stationary shock wave in a super sonic …
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Analysis of gas-solid multiphase flow systems in extreme flight environments using a one-way coupled DSMC-Lagrangian overlay-based computational framework
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-02-04 without embargo terms
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Quantification and mitigation of segregation in the handling of alumina in aluminium production
… bulk solids can be identified. Segregation by particle size is the main type of influence, although the work has shown that attrition is another. Standardised statistical expressions have been used for analysing the bottlenecks of the logistic loops, and study of the results has led to a useful …