Articles with "two phase" as a keyword



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Equilibrium and non‐equilibrium gas–liquid two phase flow in long and short pipelines following a rupture

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Published in 2017 at "Aiche Journal"

DOI: 10.1002/aic.15675

Abstract: The two-phase flow following the blowdown of pipeline carrying flashing liquid is numerically investigated by using thermodynamic equilibrium and non-equilibrium models. Model equations are solved numerically by the finite volume method. The values of fluxes… read more here.

Keywords: non equilibrium; two phase; equilibrium model; equilibrium ... See more keywords
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On two‐phase modeling of dewatering pulp suspensions

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Published in 2021 at "Aiche Journal"

DOI: 10.1002/aic.17277

Abstract: Correspondence Tom S. Eaves, School of Science and Engineering, University of Dundee, Fulton Building, Dundee DD1 4HN, UK. Email: [email protected] Abstract An experimental study of the dewatering of wood-pulp fiber suspensions by uniaxial compression is… read more here.

Keywords: pulp; two phase; pulp suspensions; wood pulp ... See more keywords
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The two‐phase amphiphilic preconcentration based on surfactants to enrich phenolic compounds from diluted plant extracts and rat urine by micellar electrokinetic chromatography

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Published in 2022 at "ELECTROPHORESIS"

DOI: 10.1002/elps.202200044

Abstract: A novel technology by two‐phase amphiphilic preconcentration based on surfactants was established for enriching phenolic compounds by micellar electrokinetic chromatography (MEKC). The cationic surfactant cetyltrimethylammonium chloride (CTAC) was combined with the anionic analytes that existed… read more here.

Keywords: based surfactants; phase amphiphilic; amphiphilic preconcentration; phenolic compounds ... See more keywords
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Purification of bacterial inulinase in aqueous two‐phase systems

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Published in 2018 at "Engineering in Life Sciences"

DOI: 10.1002/elsc.201700174

Abstract: In this study, extracellular inulinase from Bacillus sp. 11/3 was partially purified and concentrated using aqueous two‐phase system (ATPS). Two different phase forming salts and four types of polyethylene glycol (PEG) were used. Binodal curves… read more here.

Keywords: phase; two phase; inulinase; inulinase purification ... See more keywords
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Local fields in two‐phase fibrous piezo‐composites with 622 constituents

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Published in 2017 at "Mathematical Methods in The Applied Sciences"

DOI: 10.1002/mma.3923

Abstract: The behaviour of the anti-plane local fields of a two-phase piezo-composite made of a fibre embedded in an infinite matrix, and in perfect contact with it, is studied. Both constituents belong to the 622 crystal… read more here.

Keywords: fields two; two phase; fibrous piezo; local fields ... See more keywords
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An approach for solving an inverse spherical two-phase Stefan problem arising in modeling of electric contact phenomena

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Published in 2017 at "Mathematical Methods in The Applied Sciences"

DOI: 10.1002/mma.4649

Abstract: In this paper, amodel problem that can be used for mathematical modeling and investigation of arc phenomena in electrical contacts is considered. An analytical approach for the solution of a two-phase inverse spherical Stefan problem… read more here.

Keywords: two phase; inverse spherical; problem; stefan problem ... See more keywords
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Relative energy approach to a diffuse interface model of a compressible two‐phase flow

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Published in 2019 at "Mathematical Methods in the Applied Sciences"

DOI: 10.1002/mma.5436

Abstract: We propose a simple model for a two‐phase flow with a diffuse interface. The model couples the compressible Navier‐Stokes system governing the evolution of the fluid density and the velocity field with the Allen‐Cahn equation… read more here.

Keywords: phase flow; two phase; model; diffuse interface ... See more keywords
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Global strong solution to a thermodynamic compressible diffuse interface model with temperature‐dependent heat conductivity in 1D

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Published in 2021 at "Mathematical Methods in the Applied Sciences"

DOI: 10.1002/mma.7597

Abstract: In this paper, we investigate the wellposedness of the nonisentropic compressible Navier–Stokes/Allen–Cahn system with the heat conductivity proportional to a positive power of the temperature. This system describes the flow of a two‐phase immiscible heat‐conducting… read more here.

Keywords: heat; heat conductivity; temperature; two phase ... See more keywords
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On a marching level‐set method for extended discontinuous Galerkin methods for incompressible two‐phase flows: Application to two‐dimensional settings

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Published in 2021 at "International Journal for Numerical Methods in Engineering"

DOI: 10.1002/nme.6853

Abstract: In this work a solver for two‐dimensional, instationary two‐phase flows on the basis of the extended discontinuous Galerkin (extended DG/XDG) method is presented. The XDG method adapts the approximation space conformal to the position of… read more here.

Keywords: two phase; level set; method; two dimensional ... See more keywords
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A two-phase model for chronic disease processes under intermittent inspection.

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Published in 2017 at "Statistics in medicine"

DOI: 10.1002/sim.7269

Abstract: A model is developed for chronic diseases with an indolent phase that is followed by a phase with more active disease resulting in progression and damage. The time scales for the intensity functions for the… read more here.

Keywords: phase; two phase; phase model; disease ... See more keywords
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Optimal multiwave sampling for regression modeling in two-phase designs.

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Published in 2020 at "Statistics in medicine"

DOI: 10.1002/sim.8760

Abstract: Two-phase designs involve measuring extra variables on a subset of the cohort where some variables are already measured. The goal of two-phase designs is to choose a subsample of individuals from the cohort and analyse… read more here.

Keywords: regression; two phase; multiwave sampling; phase designs ... See more keywords