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phase flows

To the theory of mass exchange in two phase flows

To the theory of mass exchange in two phase flows

... weighted) flows are extremely important for various and technological problems: hydro and heat power engineering; oil, gas and chemical industries; hydraulic engineering and water management; drilling, ...

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Numerical Simulation of Three-Phase Flows in the Inverse Fluidized bed

Numerical Simulation of Three-Phase Flows in the Inverse Fluidized bed

... solid phase is treated as the discrete phase, and each individual particle is tracked by solving the Lagrangian force balance ...discrete phase is ...Each phase is treated as a continuum ...

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A tabulated data technique for cryogenic two-phase flows

A tabulated data technique for cryogenic two-phase flows

... An explicit density based solver for cryogenic two-phase flows has been developed in OF. The Helmholtz EoS for oxygen has been employed in a tabulated form; finite element bilinear interpolation was used ...

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Prospects for the application of radiometric methods in the measurement of two-phase flows

Prospects for the application of radiometric methods in the measurement of two-phase flows

... Abstract. The article constitutes an overview of the application of radiometric methods in the research of two-phase flows: liquid-solid particles and liquid-gas flows. The methods which were used ...

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Numerical Methods for Compressible Multi-phase flows with Surface Tension

Numerical Methods for Compressible Multi-phase flows with Surface Tension

... This thesis has proposed a wide range of numerical methods for non-conservative hy- perbolic systems. From a physical, mathematical view point as well as real-life applica- tions of compressible multi-phase ...

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Experimenting with the p4est library for AMR simulations of
          two-phase flows

Experimenting with the p4est library for AMR simulations of two-phase flows

... Abstract. Many physical problems involve spatial and temporal inhomogeneities that require a very fine discretization in order to be accurately simulated. Using an adaptive mesh, a high level of resolution is used in the ...

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Upscaling immiscible two-phase flows in an adaptive frame

Upscaling immiscible two-phase flows in an adaptive frame

... The coordinate transformation that we use was inspired by the successes of the time of flight method when applied to the saturation equation. The streamfunction Ψ was first introduced by Muskat [38] in the context of ...

132

Drag Reduction by Additives in Curved Pipes for Single-Phase Liquid and Two-Phase Flows: A Review

Drag Reduction by Additives in Curved Pipes for Single-Phase Liquid and Two-Phase Flows: A Review

... two-phase flows in curved ...channel flows, drag reduction by additives is predominantly in the turbulent flow regime, but a few studies reported DR in the laminar flow ...Single phase drag ...

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Thermoplastic Micromodel Investigation of Two-Phase Flows in a Fractured Porous Medium

Thermoplastic Micromodel Investigation of Two-Phase Flows in a Fractured Porous Medium

... When applying engineering processes to porous media involving two-phase flows, e.g., enhanced oil recovery, geological carbon sequestration, water infiltration, and groundwater remediation, a fractured pore ...

14

Computational Study of Multi Phase Flows Using Lattice Boltzmann Model

Computational Study of Multi Phase Flows Using Lattice Boltzmann Model

... Multi-Relaxation Time Lattice Boltzmann method is implemented to study lighter droplets rising in a heavier fluid. Both an infinite and bounded fluid domains are considered. Density distribution functions for each fluid ...

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Numerical Simulation of Two Phase Flows in T Shaped Microchannel for Cooling

Numerical Simulation of Two Phase Flows in T Shaped Microchannel for Cooling

... each phase solves equations through pressure connections and exchange coefficients between phase takes depends on the type of ...multi- phase default, this model is the generalization of k-epsilon ...

10

Numerical Simulations of Two-Phase Flows in the Liquid Solid Circulating Fluidized Bed

Numerical Simulations of Two-Phase Flows in the Liquid Solid Circulating Fluidized Bed

... liquid phase and the influence of boundary conditions for the solid phase are ...two-phase flows in LSCFBs with spherical particles and the Menter-Lechner near wall treatment can significantly ...

122

Numerical simulation of compressible cavitating two-phase flows with a pressure-based solver

Numerical simulation of compressible cavitating two-phase flows with a pressure-based solver

... Diesel injectors can suffer from cavitation erosion. Recent regulations in term of emissions forced engine manufac- turers to increase the injection pressure to values above 2000 [bar]. The consequent higher velocities ...

9

Mathematical Modeling of Laminar and Turbulent Single-phase and Two-phase Flows in Straight and Helical Ducts

Mathematical Modeling of Laminar and Turbulent Single-phase and Two-phase Flows in Straight and Helical Ducts

... According to Shah and Joshi [1], the enhancement of heat transfer in curved ducts compared to that in straight ducts is most prominent for the laminar flow. For the turbulent flow, curved ducts offer no other significant ...

231

Cross-correlation video recording of gas-vapor-droplet two-phase flows

Cross-correlation video recording of gas-vapor-droplet two-phase flows

... The experimental setup (Fig. 1) was used in carrying out of experimental researches. The experimental stand is a modern high-precision system of two-phase gas-, vapor-liquid streams diagnostics, working at the ...

7

Spectral Cascade-Transport Turbulence Model Development for Two-Phase Flows.

Spectral Cascade-Transport Turbulence Model Development for Two-Phase Flows.

... NPHASE-CMFD is an advanced multiphase computational fluid dynamics code for combined mass, momentum, and energy transfer processes [95] developed by Interphase Dynamics, LLC that was chosen as the 3D M-CFD code for SCTM ...

216

Study of a low Mach nuclear core model for single-phase flows

Study of a low Mach nuclear core model for single-phase flows

... We presented in this paper the first numerical simulations of the Lmnc model derived in [4]. This simplified model allows to handle low Mach number fluid flows in a nuclear reactor core by means of a source term ...

17

Two-Phase Flows With Dynamic Contact Angle Effects For Fuel Cell Applications

Two-Phase Flows With Dynamic Contact Angle Effects For Fuel Cell Applications

... velocity from the PEMFC reaction in the simulation, which greatly reduced the computational time and also provided a promising approach to the numerical simulation of two-phase flow in PEMFCs. In 2008, Le et al. ...

150

Lattice Boltzmann modelling of immiscible two-phase flows

Lattice Boltzmann modelling of immiscible two-phase flows

... non-wetting phase distribu- tion with Ca = 5 ∗ 10 − 4 ...non-wetting phase may take values greater than unity due to the ”lubricating” effect of the wetting films that cover the solid ...

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RANS simulation of bubble coalescence and break-up in bubbly two-phase flows

RANS simulation of bubble coalescence and break-up in bubbly two-phase flows

... For the high flow rate wall- 656 peaked case L2, Figure 7l, where the turbulence level is already high and the void fraction in the 657 pipe centre is low, and the core-peaked void profi[r] ...

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