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  1. No Access

    Chapter and Conference Paper

    Numerical Homogenization of Epoxy-Clay Composite Materials

    The numerical homogenization of anisotropic linear elastic materials with strongly heterogeneous microstructure is studied. The developed algorithm is applied to the case of two-phase composite material: epoxy...

    Ivan Georgiev, Evgeni Ivanov, S. Margenov, Y. Vutov in Numerical Methods and Applications (2015)

  2. No Access

    Chapter and Conference Paper

    Numerical Homogenization of Heterogeneous Anisotropic Linear Elastic Materials

    The numerical homogenization of anisotropic linear elastic materials with strongly heterogeneous microstructure is studied. The developed algorithm is applied to the case of trabecular bone tissue. In our prev...

    S. Margenov, S. Stoykov, Y. Vutov in Large-Scale Scientific Computing (2014)

  3. No Access

    Chapter and Conference Paper

    On the Adaptive Time-Step** in Radio-Frequency Liver Ablation Simulation: Some Preliminary Results

    Radio-frequency ablation is a low invasive technique for treatment of liver tumors. This work concerns the mathematical modeling and computer simulation of the heat transfer process. The core is solving the ti...

    K. Georgiev, N. Kosturski, Y. Vutov in Large-Scale Scientific Computing (2014)

  4. No Access

    Chapter and Conference Paper

    Calibration of Parameters for Radio-Frequency Ablation Simulation

    We consider the simulation of the thermal and electrical processes, involved in the radio-frequency (RF) ablation procedure. RF ablation is a low invasive technique for the treatment of hepatic tumors, utilizi...

    N. Kosturski, S. Margenov, Y. Vutov in Large-Scale Scientific Computing (2014)

  5. No Access

    Chapter and Conference Paper

    Improving the Efficiency of Parallel FEM Simulations on Voxel Domains

    In this work, we consider large-scale finite element modeling on voxel grids. We are targeting the IBM Blue Gene/P computer, which features a 3D torus interconnect. Our previous parallelization approach was to...

    N. Kosturski, S. Margenov, Y. Vutov in Large-Scale Scientific Computing (2012)

  6. No Access

    Chapter and Conference Paper

    Finite Volume Discretization of Equations Describing Nonlinear Diffusion in Li-Ion Batteries

    Numerical modeling of electrochemical process in Li-Ion battery is an emerging topic of great practical interest. In this work we present a Finite Volume discretization of electrochemical diffusive processes o...

    P. Popov, Y. Vutov, S. Margenov, O. Iliev in Numerical Methods and Applications (2011)