• Article  

      Coherent structures in oscillating turbulent boundary layers over a fixed rippled bed 

      Grigoriadis, D. G. E.; Balaras, E.; Dimas, A. A. (2013)
      Coherent structures generated by oscillating turbulent boundary layers with or without a unidirectional current over a fixed, rippled bed are presented. The effect of ripple height and current intensity on the characteristics ...
    • Conference Object  

      Compression molding of semi-concentrated fiber suspensions: Flow and fiber orientation 

      Ahmed, Alauddin; Alexandrou, Andreas N. (Publ by ASME, 1993)
      The focus of this paper is compression molding of semi-concentrated fiber suspensions. During compression molding a premeasured amount of raw material (charge) is placed between two halves of a die. The die is then closed ...
    • Article  

      Existence and stability of traveling discrete shocks 

      Smyrlis, Yiorgos-Sokratis; Yu, S. H. (1997)
      We are concerned with existence and stability questions for finite difference schemes approximating solutions of scalar conservation laws with shocks. A suitable model for the study of the artifacts created by these schemes ...
    • Article  

      Finite Difference Schemes for the Cauchy–Navier Equations of Elasticity with Variable Coefficients 

      Bialecki, B.; Karageorghis, Andreas (2015)
      We solve the variable coefficient Cauchy–Navier equations of elasticity in the unit square, for Dirichlet and Dirichlet-Neumann boundary conditions, using second order finite difference schemes. The resulting linear systems ...
    • Article  

      The interplay between humans, technology and user authentication: A cognitive processing perspective 

      Belk, Marios; Fidas, Christos A.; Germanakos, Panagiotis; Samaras, George S. (2017)
      This paper investigates the interplay among human cognitive processing differences (field dependence vs. field independence), alternative interaction device types (desktop vs. touch) and user authentication schemes (textual ...
    • Article  

      Self-stabilizing reconfiguration 

      Dolev, S.; Georgiou, Chryssis; Marcoullis, Ioannis; Schiller, E. M. (2017)
      Current reconfiguration techniques depend on starting the system in a consistent configuration, in which all participating entities are in a predefined state. Starting from that state, the system must preserve consistency ...
    • Article  

      Stable finite element solutions of fully viscous compressible flows 

      Barsoum, M. E.; Alexandrou, Andreas N. (1995)
      This paper presents a stable approach to solve convection-dominated flows in the presence of compressibility effects. This approach employs the Petrov-Galerkin weighing to the FEM equations to achieve stability at the high ...
    • Article  

      Unsteady flow of semi-concentrated suspensions using finite deformation tensors 

      Ahmed, A.; Alexandrou, Andreas N. (1994)
      The interest in the theoretical investigation of the flow behavior of fiber suspensions during manufacturing processes has increased considerably due to the increased interest in the use of composite materials. The unsteady ...