Flow regimes and recommended multiphase models
CFD modelling of flow-induced vibration under multiphase flow regimes.
... annular flow regime (Hua and Pan, ...in multiphase flowlines between the phases as well as between phases and pipe ...and flow properties ...excites flow line structures conveying the ...
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On baer-nunziato multiphase flow models
... it is possible to extract a cluster point which is a weak solution to (1)-(2)-(3). In order to answer this latter question, the main issue concerns possible oscillations of the density (see also [13]): one must show that ...
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CFD modelling of pipe erosion under multiphase flow regimes.
... the flow to get fully developed before it reaches the elbow, however in recent times due to the exploration of oil and gas in extreme conditions, there is need for the use of complex pipe systems such as jumpers ...
250
Clinical Legal Education Models: Recommended Assessment Regimes
... four models the following is evident: at WLC, UJLC and UFSLC, CLE is a compulsory course, which would seem to be preferable, 34 whereas CLE is an elective course at ...
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Machine Learning for Closure Models in Multiphase-Flow Applications
... In multiphase flow applications, the use of neural networks to identify closure terms is still in its ...liquid-gas flow, for which they take a reduced order model, averaged along the streamwise ...
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Machine learning for closure models in multiphase flow applications
... For bubbly flow in a vertical channel, Ma et al. [26, 27], introduced a more general approach. They conducted 3D unsteady Navier-Stokes DNS (with front tracking), the results of which can be related to the ...
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An Improved Hydrodynamics Formulation for Multiphase Flow Lattice-Boltzmann Models
... (mesoscopic) models of multi-component fluid flow and phase change constitute an intermediate step towards engineering design of thermo-fluid systems, situated between molecular dynamics and Navier-Stokes ...
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Efficient Iterative Solution Algorithms For Numerical Models of Multiphase Flow
... the multiphase modelling of vascular tumour growth were studied, based upon the model introduced in ...the multiphase model to include an additional phase is ...
172
Multiphase Flow - Appendices
... 2.7. Solution – Solution Methods In the section, the solution algorithms FLUENT uses to obtain a solution can be selected. The appropriateness of a solution method is depended on the models used, whether the ...
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Analysis of oil-injected twin-screw compressor with multiphase flow models
... Oil distribution study is further focused on the oil volume fraction distribution on the male rotor surface. Figure 10 shows the distribution of oil on the surface obtained from the mixture and VOF models as well ...
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Int. J. of Multiphase Flow and Editor of the Handbook of Multiphase Systems.
... Natural convection boiling of water and surfactants at atmospheric pressure in narrow horizontal annular channels was studied experimentally in the range of Bond numbers Bo=0.185-1.52. The flow pattern was ...
11
Computational fluid dynamics (CFD) modelling of critical velocity for sand transport flow regimes in multiphase pipe bends.
... The typical petroleum systems usually contain liquid hydrocarbon and produced gas phase in addition to the solids phase, which is usually sand of varying particle size. However, the primary consideration of pipeline ...
156
Discontinuous Galerkin methods for multiphase flow
... be recommended as the simplest and least intrusive way of stabilising a single-phase DG FEM solver for use in a multi-phase flow setting where the density field has a sharp discontinuity and the convecting ...
178
Multiphase severe slug flow control
... slug flow is one of the most undesired multiphase flow regimes, due to the associated instability, which imposes major challenges to flow assurance in the oil and gas ...
306
Fluid Flow through PAKKA-Model Structures in Multiphase Flow
... numerical models of porous media and tomographic imaging ...different models were taken to give a qualitatively dependence of permeability on porosity, but also effects of other structural properties were ...
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Multiphase flow predictions from carbonate pore space images using extracted network models
... representation of the rock’s pore structure. We adjust the contact angles in the network to match the measured waterflood and secondary drainage capillary pressures. We infer a significant degree of contact angle ...
14
A Data-Driven Model for Multiphase Flow in Pipes
... Established models may be delivering inaccurate results when applied at conditions beyond those which they were derived ...instance, models available in the literature have shown to have limitations when ...
108
Frontiers and progress in multiphase flow and heat transfer
... of multiphase flow and heat transfer is growing very fast now- adays than ever ...two-phase flow and thermal phe- nomena involved in traditional industries and highly specialized fields such as ...
7
Fast Marching Method with Multiphase Flow and Compositional Effects
... DTOF-based flow simulation is further applied to a triple-continuum modeling to satisfy the needs of the additional physical mechanisms in unconventional ...continuum models, ...
225
CFD Analysis of Single and Multiphase Flow Characteristics in Elbow
... two-phase flow was performed in a 90 degree hori- zontal to vertical elbow with ...Characteristic flow behavior was investigated at six different upstream and downstream locations of the ...empirical ...
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