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Browsing by Subject "Magnetohydrodynamics"

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    • Article  

      Analytic models of heterogenous magnetic fields for liquid metal flow simulations 

      Votyakov, E. V.; Kassinos, Stavros C.; Albets-Chico, X. (2009)
      A physically consistent approach is considered for defining an external magnetic field as needed in computational fluid dynamics problems involving magnetohydrodynamics (MHD). The approach results in simple analytical ...

    • Article  

      Core of the magnetic obstacle 

      Votyakov, E. V.; Kassinos, Stavros C. (2010)
      Rich recirculation patterns have been recently discovered in the electrically conducting flow subject to a local external magnetic termed "the magnetic obstacle" (E.V. Votyakov, Y. Kolesnikov, O. Andreev, E. Zienicke, and ...

    • Article  

      Direct numerical simulation of turbulent liquid metal flow entering a magnetic field 

      Albets-Chico, X.; Grigoriadis, D. G. E.; Votyakov, E. V.; Kassinos, Stavros C. (2013)
      This paper presents direct numerical simulations (DNS) of fully developed turbulent liquid-metal flow in a circular duct entering a magnetic field. The case of a magnetohydrodynamic flow leaving a strong magnetic field has ...

    • Article  

      Dispersed-phase structural anisotropy in homogeneous magnetohydrodynamic turbulence at low magnetic Reynolds number 

      Rouson, D. I.; Kassinos, Stavros C.; Moulitsas, I.; Sarris, I. E.; Xu, X. (2008)
      A new tensor statistic, the dispersed-phase structure dimensionality Dp, is defined to describe the preferred orientation of clusters of discrete bodies. The evolution of Dp is calculated via direct numerical simulations ...

    • Article  

      Full magnetohydrodynamic solution of liquid-metal flow in an insulating pipe subjected to a strong fringing magnetic field 

      Albets-Chico, X.; Radhakrishnan, H.; Kassinos, Stavros C. (2012)
      This paper addresses liquid-metal flow under a strong, fringing, decreasing magnetic field in an insulating circular pipe by a full resolution of the magnetohydrodynamic (MHD) equations. The aims of the paper are first to ...

    • Article  

      Magnetohydrodynamic turbulence at moderate magnetic Reynolds number 

      Knaepen, B.; Kassinos, Stavros C.; Carati, D. (2004)
      We consider the case of homogeneous turbulence in a conducting fluid that is exposed to a uniform external magnetic field at low to moderate magnetic Reynolds numbers (by moderate we mean here values as high as 20). When ...

    • Article  

      MHD flow past a circular cylinder using the immersed boundary method 

      Grigoriadis, D. G. E.; Sarris, I. E.; Kassinos, Stavros C. (2010)
      The immersed boundary method (IB hereafter) is an efficient numerical methodology for treating purely hydrodynamic flows in geometrically complicated flow-domains. Recently Grigoriadis et als. [1] proposed an extension of ...

    • Article  

      Statistical measures of structural anisotropy in MHD turbulence subjected to mean shear and frame rotation 

      Kassinos, Stavros C.; Knaepen, B.; Wray, A. (2006)
      We consider homogeneous turbulence in a conducting fluid that is exposed to a uniform external magnetic field while being sheared in fixed and rotating frames. We take both the frame-rotation axis and the applied magnetic ...

    • Doctoral Thesis  Open Access

      Three-dimensional direct numerical simulations of hydrodynamic and magnetohydrodynamic flows over an obstacle in a confined geometry 

      Kanaris, Nicolas A. (Πανεπιστήμιο Κύπρου, Πολυτεχνική Σχολή / University of Cyprus, Faculty of Engineering, 2012-12)
      Στην παρούσα διατριβή παρουσιάζεται η υδροδυναμική και μαγνητοϋδροδυναμική ροή που αναπτύσσεται γύρω από ένα κύλινδρο κυκλικής διατομής, σε γεωμετρίες περιορισμένες από σταθερά τοιχώματα. Η επίδραση του περιορισμού της ...

    • Article  

      Three-dimensional numerical simulations of magnetohydrodynamic flow around a confined circular cylinder under low, moderate, and strong magnetic fields 

      Kanaris, N.; Albets, X.; Grigoriadis, D. G. E.; Kassinos, Stavros C. (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 ...

    • Article  

      The transport of a passive scalar in magnetohydrodynamic turbulence subjected to mean shear and frame rotation 

      Kassinos, Stavros C.; Knaepen, B.; Carati, D. (2007)
      We consider the transport of a passive scalar under the influence of homogeneous turbulence in a conducting fluid that is exposed to a uniform external magnetic field while being sheared in fixed and rotating frames. The ...

    • Article  

      Yield behavior of commercial Al-Si alloys in the semisolid state 

      Pan, Q. Y.; Apelian, D.; Alexandrou, Andreas N. (2004)
      Systematic experimental work and modeling efforts have been conducted to characterize the yield behavior of commercial aluminum alloys in the semisolid state. In this study, extensive compression experiments were performed ...

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