Now showing items 1-6 of 6

  • A comparative study of numerical schemes and turbulence models for wind turbine aerodynamics modelling 

    Baxevanou, C. A.; Vlachos, N. S. (2004)
    This paper is a comparative study of combining turbulence models and interpolation schemes to calculate turbulent flow around a NACA0012 airfoil before and after separation. The calculations were carried out using the code ...
  • Horizontal round heated jets into calm uniform ambient 

    Michas, S. N.; Papanicolaou, P. N. (2009)
    In this article, we investigate horizontal, round, turbulent buoyant jets that discharge in a homogeneous calm ambient fluid. In a series of experiments performed, the initial jet Richardson numbers ranged from very small ...
  • Investigation of various nozzles configurations with respect to IFMIF and liquid walls concepts 

    Kakarantzas, S.; Knaepen, B.; Caby, M.; Benos, L.; Sarris, I.; Pelekasis, N. (2015)
    The study of liquid-metal free surface flows is of great interest in the fusion research, for example in the IFMIF and liquid walls concepts. In the IFMIF project, the main goal is to test candidate metallic materials in ...
  • New results on turbulence modeling for free-space optical systems 

    Chatzidiamantis, N. D.; Sandalidis, H. G.; Karagiannidis, G. K.; Kotsopoulos, S. A.; Matthaiou, M. (2010)
    In this paper, we propose a statistical channel model, named as Double-Weibull, to describe the irradiance fluctuations in moderate and strong turbulence for free-space optical (FSO) systems. The proposed stochastic model ...
  • Numerical simulations of the IPPE target geometry flows 

    Prakash, A.; Kakarantzas, S.; Bernardi, D.; Micciche, G.; Massaut, V.; Knaepen, B. (2013)
    A high speed water and liquid lithium (Li) flow is computed over the IPPE geometry to evaluate the performance of different turbulence models in 2D and 3D simulations. Results reported are the thickness of the liquid jet, ...
  • A simple statistical model for turbulence-induced fading in free-space optical systems 

    Chatzidiamantis, N. D.; Sandalidis, H. G.; Karagiannidis, G. K.; Matthaiou, M. (2010)
    In this paper, we propose the Inverse Gaussian (IG) distribution, as a less complex alternative to Log-normal (LN), to describe turbulence-induced fading in free-space optical (FSO) systems operating in weak turbulence ...