Search Results - "Payatakes, A.C"

Transient and steady-state relative permeabilities from two-phase flow experiments in planar pore networks by Tsakiroglou, C.D., Avraam, D.G., Payatakes, A.C.

“…The water k rw and oil k ro relative permeability curves of a glass-etched planar pore network are estimated with history matching from transient displacement…”
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Estimation of the diffusion coefficient of aerosol particle aggregates using Brownian simulation in the continuum regime by Moskal, Arkadiusz, Payatakes, A.C.

“…A novel simulator of the translational and rotational motion of rigid aggregates of aerosol particles has been developed, taking into account the stochastic…”
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Phenomenological description and network simulation of horizontal filtration dynamics by Skouras, E.D, Burganos, V.N, Paraskeva, C.A, Payatakes, A.C

“…The macroscopic design of granular filtration is based on phenomenological equations for the prediction of the overall filtration efficiency and pressure drop…”
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Flow Mechanisms, Relative Permeabilities, and Coupling Effects in Steady-State Two-Phase Flow through Porous Media. The Case of Strong Wettability by Avraam, D. G, Payatakes, A. C

“…The pore-scale flow mechanisms and the relative permeabilities during steady-state two-phase flow in a glass model pore network were studied experimentally for…”
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Simulation of the dynamic behavior of horizontal granular filters by Skouras, E.D., Burganos, V.N., Paraskeva, C.A., Payatakes, A.C.

“…An improved simulator for the transient behavior of horizontal depth filters, based on the one-dimensional simulator published recently by the authors, is…”
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The Combined Effect of the Viscosity Ratio and the Wettability during Forced Imbibition through Nonplanar Porous Media by Tzimas, G.C., Matsuura, T., Avraam, D.G., Van der Brugghen, W., Constantinides, G.N., Payatakes, A.C.

“…The role of the oil/water viscosity ratio κ and the wettability (expressed as equilibrium contact angle θeq) during forced imbibition in a nonplanar…”
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Hierarchical simulator of biofilm growth and dynamics in granular porous materials by Kapellos, George E., Alexiou, Terpsichori S., Payatakes, Alkiviades C.

“…A new simulator is developed for the prediction of the rate and pattern of growth of biofilms in granular porous media. The biofilm is considered as a…”
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On the rapid convergence of the analytical solution of Stokes flow around spheroids-in-cell by Burganos, V.N., Coutelieris, F.A., Dassios, G., Payatakes, A.C.

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Calcium oxalate crystallization on concrete heterogeneities by Arvaniti, E.C., Lioliou, M.G., Paraskeva, C.A., Payatakes, A.C., Østvold, T., Koutsoukos, P.G.

“…The precipitation of calcium oxalate monohydrate (COM) as a waterproofing material for concrete constructions is a promising approach. The kinetics of…”
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Growth kinetics of Pseudomonas fluorescens in sand beds during biodegradation of phenol by Sgountzos, I.N., Pavlou, S., Paraskeva, C.A., Payatakes, A.C.

“…The growth kinetics of a bacterium of the strain Pseudomonas fluorescens, which is indigenous in soil, has been investigated in batch cultures and sand packs…”
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Generalized relative permeability coefficients during steady-state two-phase flow in porous media, and correlation with the flow mechanisms by Avraam, D. G., Payatakes, A. C.

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True-to-mechanism model of steady-state two-phase flow in porous media, using decomposition into prototype flows by Valavanides, M.S., Payatakes, A.C.

“…A true-to-mechanism model is proposed, which considers steady-state two-phase flow in porous media (SS2 ϕPM) as a composition of two prototype flows, namely…”
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CFD predictions for cement kilns including flame modelling, heat transfer and clinker chemistry by Mastorakos, E, Massias, A, Tsakiroglou, C.D, Goussis, D.A, Burganos, V.N, Payatakes, A.C

“…Clinker formation in coal-fired rotary cement kilns under realistic operation conditions has been modelled with a commercial axisymmetric CFD code for the…”
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Visualization experiments of biodegradation in porous media and calculation of the biodegradation rate by Vayenas, D.V., Michalopoulou, E., Constantinides, G.N., Pavlou, S., Payatakes, A.C.

“…Biodegradation in porous media is studied with carefully controlled and well-characterized experiments in model porous media constructed of etched glass…”
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Simulation of the dynamics of depth filtration of non-Brownian particles by Burganos, V. N., Skouras, E. D., Paraskeva, C. A., Payatakes, A. C.

“…A new simulator for flow of aqueous suspensions and deposition of non‐Brownian particles in granular media can predict the pattern of deposition and…”
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Model of adsorption-reaction-desorption in a swarm of spheroidal particles by Coutelieris, F. A., Burganos, V. N., Payatakes, A. C.

“…The mass transport problem from a Newtonian fluid to a swarm of prolate or oblate spheroidal adsorbing particles under creeping flow conditions is considered…”
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Stokes flow in spheroidal particle-in-cell models with rappel and kuwabara boundary conditions by Dassios, G., Hadjinicolaou, M., Coutelieris, F.A., Payatakes, A.C.

“…Particle-in-cell models are useful in the development of simple but reliable analytical expressions for heat and mass transfer in swarms of particles. Most…”
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Mechanistic model of steady-state two-phase flow in porous media based on ganglion dynamics by VALAVANIDES, M. S, CONSTANTINIDES, G. N, PAYATAKES, A. C

“…Recent experimental work has shown that the pore-scale flow mechanism during steady-state two-phase flow in porous media is ganglion dynamics (GD) over a broad…”
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Mercury Penetration and Snap-off in Lenticular Pores by Tsakiroglou, C.D., Kolonis, G.B., Roumeliotis, T.C., Payatakes, A.C.

“…During mercury porosimetry experiments two of the most basic mechanisms responsible for mercury intrusion (drainage) into and retraction (imbibition) from…”
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Investigation of Thin Liquid Films of Small Diameters and High Capillary Pressures by a Miniaturized Cell by Velev, O.D., Constantinides, G.N., Avraam, D.G., Payatakes, A.C., Borwankar, R.P.

“…A highly miniaturized cell for the experimental investigation of thin foam and emulsion films has been constructed. The miniaturization of the structure in the…”
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