Search Results - "Boudouvis, A.G"

Beware of symmetry breaking and periodic flow regimes in axisymmetric CVD reactor setups by Cheimarios, N., Kavousanakis, M., Kokkoris, G., Boudouvis, A.G.

“…•3D, nonlinear analysis of the solution space of an axisymmetric CVD reactor.•Buoyancy gives way to multiple solutions and symmetry-breaking.•Forced, free,…”
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Computational Fluid Dynamics simulation of the ALD of alumina from TMA and H2O in a commercial reactor by Gakis, G.P., Vergnes, H., Scheid, E., Vahlas, C., Caussat, B., Boudouvis, A.G.

“…[Display omitted] •A CFD model is built for a commercial ALD reactor depositing alumina from TMA-H2O.•Results show the effect of the reactor geometry on the…”
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A modified phase-field method for the investigation of wetting transitions of droplets on patterned surfaces by Pashos, G., Kokkoris, G., Boudouvis, A.G.

“…A variant of the phase-field method, suitably modified to enable equilibrium (static) computations, is proposed for the calculations of the equilibrium wetting…”
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Experimental and numerical assessment of the hydraulic behavior of a pilot-scale Periodic Anaerobic Baffled Reactor (PABR) by Michalopoulos, I., Kamperidis, T., Seintis, G., Pashos, G., Lytras, C., Papadopoulou, K., Boudouvis, A.G., Lyberatos, G.

“…•The hydraulic behavior of a pilot-scale Periodic Anaerobic Baffled Reactor (PABR) is studied through experimental RTD tests.•A tank in series model is used…”
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Efficient tracing and stability analysis of multiple stationary and periodic states with exploitation of commercial CFD software by Koronaki, E.D., Gakis, G.P., Cheimarios, N., Boudouvis, A.G.

“…A computational approach is presented that enables commercial Computational Fluid Dynamics (CFD) codes to detect Hopf bifurcations and with necessary…”
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Illuminating nonlinear dependence of film deposition rate in a CVD reactor on operating conditions by Cheimarios, N., Koronaki, E.D., Boudouvis, A.G.

“…[Display omitted] ► Illumination of nonlinear dependence, through variation of operating parameters, of film deposition rate on prevailing flow patterns in a…”
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A multi-parallel multiscale computational framework for chemical vapor deposition processes by Cheimarios, N., Kokkoris, G., Boudouvis, A.G.

“…•A multiscale computational framework couples reactor (macro-) scale with feature (micro-) scale models in chemical vapor deposition processes.•A domain…”
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Plasma processing for polymeric microfluidics fabrication and surface modification: Effect of super-hydrophobic walls on electroosmotic flow by Vourdas, N., Tserepi, A., Boudouvis, A.G., Gogolides, E.

“…We report on the fabrication and electrokinetic characterization of poly-methyl methacrylate (PMMA) microfluidics by deep O2 plasma etching, utilizing a…”
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A 2-D pore-network model of the drying of single-component liquids in porous media by Yiotis, A.G, Stubos, A.K, Boudouvis, A.G, Yortsos, Y.C

“…The drying of liquid-saturated porous media is typically approached using macroscopic continuum models involving phenomenological coefficients. Insight on…”
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A data-driven reduced-order model of nonlinear processes based on diffusion maps and artificial neural networks by Koronaki, E.D., Nikas, A.M., Boudouvis, A.G.

“…•A low-dimensional predictive model of nonlinear processes is proposed.•Diffusion maps are implemented to identify low-dimensional parametrization.•Neural…”
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On the effect of self-sustained periodic flows on film thickness non-uniformity during CVD by Kavousanakis, M., Cheimarios, N., Kokkoris, G., Boudouvis, A.G.

“…•Perform 3D transient simulations of Silicon Chemical Vapor Deposition.•We compute self-sustained periodic flows in a symmetric CVD reactor.•Arrhenius plots…”
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CFD optimization algorithm for a moving boundary problem of isothermal drying and shrinkage by Lentzou, D., Boudouvis, A.G., Karathanos, V., Xanthopoulos, G.

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A simple correlation for the operating temperature of photovoltaic modules of arbitrary mounting by Skoplaki, E., Boudouvis, A.G., Palyvos, J.A.

“…Following a brief discussion regarding the operating temperature of commercial grade silicon photovoltaic (PV) cells/modules and its effect upon the…”
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Classification of states and model order reduction of large scale Chemical Vapor Deposition processes with solution multiplicity by Koronaki, E.D., Gkinis, P.A., Beex, L., Bordas, S.P.A., Theodoropoulos, C., Boudouvis, A.G.

“…•A workflow is presented for data-driven equation-free Reduced Order Model.•Principal Component Analysis/Artificial Neural Networks are combined for the…”
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Investigation of the chemical vapor deposition of Cu from copper amidinate through data driven efficient CFD modelling by Spencer, R., Gkinis, P., Koronaki, E.D., Gerogiorgis, D.I., Bordas, S.P.A., Boudouvis, A.G.

“…•A new chemical pathway for the deposition of Cu from Cu amidinate is proposed•The included precursor decomposition reactions are activated at high…”
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Mass transport analysis in perforation-mediated modified atmosphere packaging of strawberries by Xanthopoulos, G., Koronaki, E.D., Boudouvis, A.G.

“…► Gas transport in perforation-mediated polymeric MAP of strawberries was modelled. ► Randomly packaged strawberries were modelled as a porous medium. ► The…”
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Building a data-driven reduced order model of a chemical vapor deposition process from low-fidelity CFD simulations by Gkinis, P.A., Koronaki, E.D., Skouteris, A., Aviziotis, I.G., Boudouvis, A.G.

“…•Coarse-mesh CFD snapshots are used for Model reduction of CVD reactor.•CPU time reduction of 60% for fine-mesh computations with complex chemistry.•Candidate…”
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A CFD analysis of slag properties, electrode shape and immersion depth effects on electric submerged arc furnace heating in ferronickel processing by Karalis, K.T., Karkalos, N., Cheimarios, N., Antipas, G.S.E., Xenidis, A., Boudouvis, A.G.

“…•A 2D steady-state parametric study of an electric arc furnace was carried out.•Joule heating increased with applied voltage and electrical slag…”
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Droplet Mobility Manipulation on Porous Media Using Backpressure by Vourdas, N, Pashos, G, Kokkoris, G, Boudouvis, A. G, Stathopoulos, V. N

“…Wetting phenomena on hydrophobic surfaces are strongly related to the volume and pressure of gas pockets residing at the solid–liquid interface. In this study,…”
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Numerical investigation of multiple stationary and time-periodic flow regimes in vertical rotating disc CVD reactors by Gakis, G.P., Koronaki, E.D., Boudouvis, A.G.

“…The vertical rotating disc CVD reactor problem is revisited with a computational framework that allows systematic parameter continuation along branches of flow…”
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