Τμήμα Μηχανικών Μηχανολογίας και Κατασκευαστικής / Department of Mechanical and Manufacturing Engineering: Recent submissions
Now showing items 701-720 of 1036
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Article
Preface
(2007)
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Conference Object
When structure makes a difference: Computation of rotating wall-bounded flows with an algebraic structure-based model
(Affiliation: Department of Mechanical and Manufacturing Engineering, University of Cyprus, Nicosia 1678, CyprusAffiliation: Center for Turbulence Research, Stanford University, Stanford, CA 94305, United StatesCorrespondence Address: Kassinos, S.C.Department of Mechanical and Manufacturing Engineering, University of Cyprus, Nicosia 1678, Cyprusemail: kassinos@ucy.ac.cy, 2005)Two linear eddy-viscosity models, the ν 2-f and κ-ω models, have been combined with an algebraic structure-based algorithm for the evaluation of the Reynolds stresses. This closure was originally designed as an integral ...
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Conference Object
Flow of Aqueous Solutions in Carbon Nanotubes
(Springer Berlin Heidelberg, 2004)We conduct simulations of water flowing inside carbon nanotubes using non-equilibrium molecular dynamics simulations. A new adaptive forcing scheme is proposed to enforce a mean center of mass velocity. This scheme is ...
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Article
One-point turbulence structure tensors
(2001)The dynamics of the evolution of turbulence statistics depend on the structure of the turbulence. For example, wavenumber anisotropy in homogeneous turbulence is known to affect both the interaction between large and small ...
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Article
Tensorial volume of turbulence revisited
(1990)A corrected tensorial turbulent volume transport equation, which is exact for uniform density flows, is derived from the Navier-Stokes equations. For homogeneous turbulence, the new terms appearing in the correct equation ...
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Article
Three dimensional flow around a circular cylinder confined in a plane channel
(2011)This paper presents two- and three-dimensional direct numerical simulations of the flow around a circular cylinder placed symmetrically in a plane channel. Results are presented in the Reynolds number range (based on the ...
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Article
On the transition to turbulence of a viscoplastic fluid past a confined cylinder: A numerical study
(2015)Three-dimensional direct numerical simulations of a Bingham fluid flowing past a confined circular cylinder have been used in order to investigate viscoplastic effects in the wake-transition regime. The case of a cylinder ...
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Article
Design of ball-milling experiments on Bi2Te3 thermoelectric material
(2013)In this work, factorial ball-milling experiments have been applied to Bi2Te3 material, for the first time, aiming to investigate the effect of the main process parameters on the structural features and thermoelectric ...
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Article
Implementing the milliken moment method using controlled dynamic simulation
(2005)The Milliken Moment Method (MMM) can be used to quantify the constraints imposed on vehicle stability and controllability by front and rear tire traction limitations. The main aspect of the Milliken Moment Method is the ...
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Article
Advances in particle representation modeling of homogeneous turbulence. From the linear PRM version to the interacting viscoelastic IPRM
(2012)In simple flows with mild mean deformation rates the Reynolds stresses are determined by the strain rate. On the other hand, when the mean deformation is very rapid, the turbulent structure takes some time to respond and ...
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Article
Rapidly sheared homogeneous stratified turbulence in a rotating frame
(2007)Rapid distortion theory is applied to stratified homogeneous turbulence that is sheared in a rotating frame. Insight into the stabilizing and destabilizing effects of the combined stratification and frame rotation is gained ...
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Article
Nonlinear Distortion and Attenuation of Intense Acoustic Waves in Lossy Media Obeying a Frequency Power Law
(2000)Nonlinear propagation of a periodic wave and a single pulse with a shack front through a lossy medium is studied theoretically. The medium is characterized by the frequency dependence of the attenuation coefficient obeying ...
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Article
Ultraviolet emission from low resistance Cu2SnS3/SnO2 and CuInS2/Sn:In2O3 nanowires
(2014)SnO2 and Sn:In2O3 nanowires were grown on Si(001), and p-n junctions were fabricated in contact with p-type Cu2S which exhibited rectifying current-voltage characteristics. Core-shell Cu2SnS3/SnO2 and CuInS2/Sn:In2O3 ...
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Book
Complex effects in Large Eddy Simulations
(Springer, 2007)
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Conference Object
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Conference Object
Numerical simulations of turbulent flow in an eccentric annulus of unit eccentricity
(TSFP-9, 2015)In this study, we perform Direct Numerical Simulations (DNS) of fully developed turbulent flows in eccentric annuli having different diameter ratios. Annuli of unit eccentricity, and diameter ratios of 0.2591 and 0.1395 ...
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Article
Three-dimensional numerical simulations of magnetohydrodynamic flow around a confined circular cylinder under low, moderate, and strong magnetic fields
(2013)This paper presents three-dimensional direct numerical simulations of liquid metal flow around a circular cylinder placed symmetrically in a rectangular duct, under a wide range of magnetic field intensities. Results are ...
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Article
Defining the role of solid stress and matrix stiffness in cancer cell proliferation and metastasis
(2018)Solid tumors are characterized by an abnormal stroma that contributes to the development of biomechanical abnormalities in the tumor microenvironment. In particular, these abnormalities include an increase in matrix stiffness ...
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Article
Large eddy simulations of turbulent mixed convection in the charging of a rectangular thermal storage tank
(2013)The Large Eddy Simulation (LES) approach is used to investigate numerically the mixed convection problem arising during the charging process of a rectangular water tank used for thermal energy storage. Two different charging ...
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Article
Numerical simulations of constant-influx gravity currents in confined spaces: Application to thermal storage tanks
(2016)This study uses Computational Fluid Dynamics (CFD) to investigate numerically the flow phenomena in the intrusion region of a thermal storage water tank during discharge. The early times of the discharging process have ...