Search Results - "Grigoriadis, D."

An efficient method for two-fluid incompressible flows appropriate for the immersed boundary method by Frantzis, C., Grigoriadis, D.G.E.

“…The numerical simulation of two-fluid flows with sharp interfaces is a challenging field, not only because of their complicated physical mechanisms, but also…”
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A numerical methodology for efficient simulations of non-Oberbeck-Boussinesq flows by Demou, A.D., Frantzis, C., Grigoriadis, D.G.E.

“…•An efficient methodology for non-Oberbeck-Boussinesq flows is proposed.•A pressure correction scheme allows the utilisation of Fast Direct Solvers.•The…”
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Numerical study of solitary waves past slotted breakwaters with a single row of vertical piles: Wave processes and flow behavior by Frantzis, C., Grigoriadis, D.G.E., Dimas, A.A.

“…Interactions of solitary waves with slotted breakwaters comprising a single row of vertical circular piles was studied using a numerical wave tank (NWT) based…”
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A low-Mach methodology for efficient direct numerical simulations of variable property thermally driven flows by Demou, A.D., Frantzis, C., Grigoriadis, D.G.E.

“…•An efficient methodology for thermally-driven low-Mach flows is proposed.•The Poisson equation is transformed into a constant coefficient equation.•Validation…”
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Large-eddy simulations of unidirectional water flow over dunes by Grigoriadis, D. G. E., Balaras, E., Dimas, A. A.

“…The unidirectional, subcritical flow over fixed dunes is studied numerically using large‐eddy simulation, while the immersed boundary method is implemented to…”
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An efficient Navier-Stokes based numerical wave tank using fast Poisson solvers and the immersed boundary method by Frantzis, C., Grigoriadis, D.G.E., Dimas, A.A.

“…An efficient numerical model for wave induced flows and their interaction with impermeable coastal structures, is presented. Using recent developments in the…”
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1D model for the energy yield calculation of natural convection solar air collectors by Demou, A.D., Grigoriadis, D.G.E.

“…A one dimensional model has been developed and presented to calculate the seasonal energy yield of solar air collectors. This model takes into account local…”
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Multi-physics and multi-scale methods used in nuclear reactor analysis by Mylonakis, A.G., Varvayanni, M., Catsaros, N., Savva, P., Grigoriadis, D.G.E.

“…•Review of techniques to perform neutronic/thermal–hydraulic coupled calculations.•Operator-Splitting and Jacobian-Free Newton methods for neutronic/T–H…”
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Developing and investigating a pure Monte-Carlo module for transient neutron transport analysis by Mylonakis, Antonios G., Varvayanni, M., Grigoriadis, D.G.E., Catsaros, N.

“…•Development and investigation of a Monte-Carlo module for transient neutronic analysis.•A transient module developed on the open-source Monte-Carlo static…”
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Numerical simulations of constant-influx gravity currents in confined spaces: Application to thermal storage tanks by Kaloudis, E., Grigoriadis, D.G.E., Papanicolaou, E.

“…This study uses Computational Fluid Dynamics (CFD) to investigate numerically the flow phenomena in the intrusion region of a thermal storage water tank during…”
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Large eddy simulations of turbulent mixed convection in the charging of a rectangular thermal storage tank by Kaloudis, E., Grigoriadis, D.G.E., Papanicolaou, E., Panidis, T.

“…[Display omitted] •Turbulent mixed convection during water storage tank charging studied numerically.•Two different LES codes were used to obtain transient…”
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Members of CRF family and their receptors: from past to future by Liapakis, G, Venihaki, M, Margioris, A, Grigoriadis, D, Gkountelias, K

“…Corticotropin releasing factor (CRF), originally isolated from the mammalian hypothalamus, is a 41 amino acid peptide that plays an important physiological…”
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Cellular and molecular mechanisms of hippocampal activation by acute stress are age-dependent by CHEN, Y, FENOGLIO, K. A, DUBE, C. M, GRIGORIADIS, D. E, BARAM, T. Z

“…The effects of stress, including their putative contribution to pathological psychiatric conditions, are crucially governed by the age at which the stress…”
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Immersed boundary method for the MHD flows of liquid metals by Grigoriadis, D.G.E., Kassinos, S.C., Votyakov, E.V.

“…Wall-bounded magnetohydrodynamic (MHD hereafter) flows are of great theoretical and practical interest. Even for laminar cases, MHD simulations are associated…”
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Large eddy simulation of thermocline flow phenomena and mixing during discharging of an initially homogeneous or stratified storage tank by Kaloudis, E., Grigoriadis, D.G.E., Papanicolaou, E., Panidis, T.

“…This study investigates numerically the flow phenomena developing in the discharging process of a rectangular water tank used for thermal energy storage and…”
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Mixed hemangioma of the external auditory canal and the tympanic membrane in a young woman: A case report by Lygeros, Spyridon, Athanasopoulos, Michael, Daniilidi, Alexandra, Danielides, Gerasimos, Grigoriadis, Kyriakos D., Danielides, Vasileios

“…Hemangiomas are benign vascular tumors frequently located in the head and neck area, but rarely encountered in the ear, often originally misdiagnosed due to…”
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Coherent Structures in Oscillating Turbulent Boundary Layers Over a Fixed Rippled Bed by Grigoriadis, D. G. E., Balaras, E., Dimas, A. A.

“…Coherent structures generated by oscillating turbulent boundary layers with or without a unidirectional current over a fixed, rippled bed are presented. The…”
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MHD flow past a circular cylinder using the immersed boundary method by Grigoriadis, D.G.E., Sarris, I.E., Kassinos, S.C.

“…The immersed boundary method (IB hereafter) is an efficient numerical methodology for treating purely hydrodynamic flows in geometrically complicated…”
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Lagrangian particle dispersion in turbulent flow over a wall mounted obstacle by Grigoriadis, D.G.E., Kassinos, S.C.

“…Large-eddy simulations (LES) of particle-laden turbulent flows are presented in order to investigate the effects of particle response time on the dispersion…”
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Direct numerical simulation of turbulent liquid metal flow entering a magnetic field by Albets-Chico, X., Grigoriadis, D.G.E., Votyakov, E.V., Kassinos, S.

“…•Analysis of turbulence persistence of fully developed MHD pipe flow at Reb=4000.•Turbulence decay of fully developed turbulence flow entering low, moderate…”
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