Phase distribution in bubbly two-phase flow in vertical ducts

Bertodano, Martín López de; Lahey, R.T.; Jones, O.C.

doi:10.1016/0301-9322(94)90095-7

Cited by 175 publications

(62 citation statements)

References 15 publications

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“…For the air-water adiabatic flow data Auton's (1987) formulation of the lift force was found appropriate for the prediction of the void fraction profiles. The turbulent diffusion force given by the Lopez de Bertodano et al (1994a) produced satisfactory results, especially at higher liquid fluxes. Two sets of coefficients for Antal et.…”

Section: Discussionmentioning

confidence: 94%

See 1 more Smart Citation

CFD Two Fluid Model for Adiabatic and Boiling Bubbly Flows in Ducts

Bertodano¹,

Prabhudharwadkar²

2010

Computational Fluid Dynamics

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Section: Discussionmentioning

confidence: 94%

“…The model given by equations (7) to (11) (7) is equivalent to the model of Lopez de Bertodano et al (1994a) for the diffusion of bubbles in turbulent duct flow, which is implemented in CFX as:…”

Section: Turbulent Diffusion Forcementioning

confidence: 99%

CFD Two Fluid Model for Adiabatic and Boiling Bubbly Flows in Ducts

Bertodano¹,

Prabhudharwadkar²

2010

Computational Fluid Dynamics

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“…There exists several forms of equations for the lift force (see Antal et al, 1991, Legendre & Magnaudet, 1998, which were validated and used by many authors. The testing and identification of the models of the lift force and wall force (Antal et al, 1991, Lopez de Bertodano, 1994, Troshko & Hassan, 2001, which prevents from the bubbles reattachment, is usually performed in the bubble column with downward bubble injection. Airwater flows are commonly considered in such experiments.…”

Section: Simplifications In Multiphase Modelmentioning

confidence: 99%

Hydrodynamical Simulation of Perspective Installations for Electrometallurgy of Aluminium

Филиппов¹,

Kanaev²,

Kondakov³

et al. 2011

Hydrodynamics - Optimizing Methods and Tools

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“…For two-phase flow, several extensions of the k-ε model that are based on calculating the turbulent viscosity by solving the k and ε equations for the carrier or continuous phase only have been proposed in the literature [50][51][52][53][54][55]. In a recent article, Cokljat and Ivanov [49] presented a phase coupled k-ε turbulence model, intended for the cases where a non-dilute secondary phase is present, in which the k-ε transport equations for all phases are solved.…”

Section: The Governing Equationsmentioning

confidence: 99%

“…Many experimental and numerical studies involving the prediction of radial phase distribution in turbulent upward air-water flow in a pipe have appeared in the literature [61][62][63][64][65][66][67][68]. These studies indicated that the lateral forces that most strongly affect the void distribution are the lateral lift force and the turbulent stresses.…”

Section: Problem 1:turbulent Upward Bubbly Flow In a Pipementioning

confidence: 99%

The Geometric Conservation Based Algorithms For Multi-Fluid Flow At All Speeds

Moukalled¹

2002

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Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing the burden, to Department of Defense, Washington Headquarters Services, Directorate for Information PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES)American University of Beirut ME Dept. PO Box: 11-0236 Beirut Lebanon PERFORMING ORGANIZATION REPORT NUMBERN/A SPONSOR/MONITOR'S ACRONYM(S) 9. SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES)EOARD PSC 802 BOX 14 FPO 09499-0014 SPONSOR/MONITOR'S REPORT NUMBER(S)SPC 01-4005 DISTRIBUTION/AVAILABILITY STATEMENTApproved for public release; distribution is unlimited. SUPPLEMENTARY NOTES ABSTRACTThis report results from a contract tasking American University of Beirut as follows: The proposed work involves implementing and (thoroughly) testing the Geometric Conservation Based family of Algorithms within a structured finite-volume framework. The convection terms along the control volume faces will be evaluated using a High Resolution scheme applied within the context of the Normalized Variable Formulation methodology. In order to accelerate the convergence rate and reduce the overall computational cost of the algorithm, the outer iterations will be accelerated by using a non-linear full multigrid method. The discretization scheme will be second-order accurate in space and first order accurate in time (even though extension to second order accuracy should be straightforward). The newly implemented algorithms will be tested by solving a variety of two-dimensional multi-fluid flow problems in the subsonic, transonic, and supersonic regimes. Examples include: 1) Phase separation in a duct (water-air); 2) Turbulent bubbly flow in a pipe; 3) Turbulent gas-solid flow in a curved duct; 4) Dusty flow over a flat plate at subsonic flow conditions (~incompressible); 5) Dusty flow in a converging-diverging nozzle, and 6) Any problem of interest to Dr. Sekar (AFRL/PR). A detailed report describing the work will be submitted at end of contract as specified in the schedule of supplies in the submitted proposal. SUBJECT TERMS AbstractThis work is concerned with the implementation and testing, within a structured collocated finite-volume framework, of seven segregated algorithms for the prediction of multi-phase flow at all speeds. These algorithms belong to the Geometric Conservation Based Algorithms

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Phase distribution in bubbly two-phase flow in vertical ducts

Cited by 175 publications

References 15 publications

CFD Two Fluid Model for Adiabatic and Boiling Bubbly Flows in Ducts

CFD Two Fluid Model for Adiabatic and Boiling Bubbly Flows in Ducts

Hydrodynamical Simulation of Perspective Installations for Electrometallurgy of Aluminium

The Geometric Conservation Based Algorithms For Multi-Fluid Flow At All Speeds

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