Profile of Oleg Iliev

Fields of Activity / Competences

  • Numerical simulation of one-phase and multi-phase incompressible flows (with own and comercial software)
  • Mathematical models and numerical simulation of flows in porous, or in porous and plain media
  • Mathematical models and numerical simulation of solidification of metals and alloys
  • Numerical simulation of heat and mass transfer processes, as well as of phase change processes
  • Numerical Algorithms for Computational Fluid Dynamics (CFD)
  • Finite-volume-discretization for elliptical interface-problems
  • Fictitious-domain-methods
  • Multi-lattice methods and local lattice refinement algorithms

 

Publications

Major Publications

  • Prill, T.; Iliev, O.; Nessler, K.:
    Pore-Scale Modeling of Reacitve Flows with Applications in Purification and Absorption of Pollutants.
    Proceedings of the FILTECH 2016 Conference, L17-03, ISBN: 978-3-941655-12-6, Cologne, 11-13 Oct 2016.
  • Iliev, O.; Desphande, R.; Antonyuk, S.:
    Analysis of filter cake formation using computational fluid dynamics - discrete element method (CFD-DEM) simulation.
    Proceedings of the FILTECH 2016 Conference, L12-03, ISBN: 978-3-941655-12-6, Cologne, 11-13 Oct 2016.
  • Iliev, O.; Kirsch, R.; Osterroth, S.:
    Combined depth and cake filtration coupled to flow simulation.
    Proceedings of the FILTECH 2016 Conference, L12-02, ISBN: 978-3-941655-12-6, Cologne, 11-13 Oct 2016.

Fraunhofer-Publica

Collection of the publications of Oleg Iliev in the Fraunhofer-Publica

Other Publications

  • Ciegis, R.; Iliev, O.:
    On numerical simulation of liquid polymer moulding Math.
    Model. Anal. 8, No. 3, 181-202 (2003).
  • Iliev, O.:
    On second-order-accurate discretization of 3D interface problems and its fast solution with a pointwise multigrid solver IMA.
    J. Numerical Analysis 22, 391-406 (2002).
  • Iliev, O.:
    On second order accurate discretization of 3D elliptic equations with discontinuous coefficients and its fast solution by multigrid method with a pointwise smoother. IMA.
    J. Numerical Analysis.
  • Iliev, O.; Stoyanov, D.:
    On a multigrid, local refinement solver for incompressible Navier-Stokes equations.
    Mathematical modeling Vol.13, No.8, 2001.
  • Bhattacharyya, A.; Iliev, O.; Stoylov, V.:
    A moving boundary finite element method-based numerical approach for the solution of the one-dimensional problems in shape memory alloys Computer Methods.
    Applied Mechanics and Engineering, Vol.190, pp.1741-1762, 2000.
  • Iliev, O.:
    A finite difference scheme of second order for elliptic problems with discontinuous coefficients.
    Differentsial'nye uravnenia , Vol.36, No.6, pp.837-838, 2000, in Russian (English translation in Differential Equations).
  • Entchev, P.; Iliev, O.; Lagoudas, D.:
    Domain Transformation Problems in 2D Oxidation.
    J. Mechanical Behaviour of Materials, Vol.11, No.4, pp.275-293, 2000.
  • Bhattacharyya, A.; Iliev, O.; Stoylov, V.:
    Evaluation of structural influence on performance of shape memory alloy linear actuators by sharp phase front.
    Based constitutive model Computational Merials Science , Vol.18, pp.269-282, 2000.
  • Iliev, O.; Manalov, V.; Yotova, A.:
    Applications of mathematical modelling.
    Metal science Journal of Materials Science and Technology, Vol.7, No.1, pp.11-20, 1999.
  • Chernogorova, T.; Ewing, R.; Iliev, O.; Lazarov, R.:
    On the discretization of interface problems with perfect and imperfect contact Chen, Ewing and Shi (Eds).
    Lecture Notes in Physics ,Springer, 2000, Vol.552.
    Proc. of the workshop of computational physics, Beijing, China, August 2-6, 1999, pp.93-104.
  • Iliev, O.; Stankov, P.; Stoyanov, D.:
    On a multigrid solution of some 3D incompressible flow problems Notes.
    Numerical Fluid Mechanics , vol.73, M.Griebel et al. (Eds), Vieweg Verlag, 2000.
    Proc. of Workshop on Large Scale Scientific Computations, Jun 1999, Sozopol, Bulgaria.
  • Drikakis, D.; Iliev, O.; Vassileva, D.:
    An adaptive-smoothing multigrid method for the Navier-Stokes equations to appear in Lecture Notes in Computer Science.
    Springer, Vol. 14, 2000, E.Dick et al (Eds).
    Proceedings of the Europeean Conference on Multigrid Methods, Ghent, Sep 1999, pp.94-100.
  • Iliev, O.; Vassileva, D.:
    On the adaptive smoothing as an approach for accelerating multigrid flow computations.
    Comptes rendus de l'Academie bulgare des Sciences, Vol.53, No.3, pp.17-20, 2000.
  • Chernogorova, T.; Iliev, O.:
    A 2nd order discretization of imperfect contact problems with piecewise constant coefficients on cell-centred grids Notes.
    Numerical Fluid Mechanics , vol.73, M.Griebel et al. (Eds), Vieweg Verlag, 2000.
    Proc. of Workshop on Large Scale Scientific Computations, Jun 1999, Sozopol, Bulgaria.
  • Iliev, O.; Schaefer, M.:
    On the efficiency of SIMPLE-type algorithms in computing incompressible flows on stretched grids.
    Technical report 99-01 of Dept. Mechanical Engineering, Darmstadt University of Technology.
    M.Griebel et al (Eds),Notes in Numerical Fluid Mechanics, vol.bf 73, Vieweg Verlag Proc. of 2nd Workshop on Large Scale Scientific Computations, Jun 1999, Sozopol, Bulgaria.
  • Drikakis, D.; Iliev, O.; Vassileva, D.:
    A nonlinear multigrid method for the incompressible Navier-Stokes equations.
    UMIST Thermo-Fluid-Dynamics Division Report, TFG/97/05.
    Journal of Computational Physics, Vol.146, pp.310-321, 1998.
  • Iliev, O.;
    A modified finite volumes approach for elliptic equations.
    Comptes rendus de l'Academie bulgare des Sciences, 51, No.3, 1998.
  • Drikakis, D.; Iliev, O.; Vassileva, D.:
    A multigrid algorithm for artifitial compressibility formulation of 3D Navier-Stokes equations.
    M. Griebel et al. (Eds), Large - Scale Scientific Computations of Engineering and Environmental Problems, Notes in Numerical Fluid Mechanics, vol. 62, Vieweg Verlag, pp.260-268, 1998.
  • Iliev, O.:
    On numerical solution of 3D elliptic problems with highly varying coefficients.
    M. Griebel et al. (Eds), Large -- Scale Scientific Computations of Engineering and Environmental Problems, Notes in Numerical Fluid Mechanics, vol.62, Vieweg Verlag, pp.229-238, 1998.
  • Bizhev, I.; Iliev, O.; Manolov, V.:
    Mathematical modeling of nitrogen diffusion in a solid metal particle.
    Comptes rendus de l'Academie bulgare des Sciences 1998, vol.51, No.1.
  • Entchev, P.; Iliev, O.; Lagoudas, D.:
    Numerical simulation of a 2D oxide layer propagation in an anisotropic medium.
    J. Mechanical Behaviour of Materials, 7, No.1, 1996, 67-83.
  • Iliev, O.; Makarov, M.:
    A block-matrix numerical method for coupled solving 2D Navier-Stokes equations.
    Preprint No.10, Institute of Mathematics, Bulgarian Academy of Sciences, 1994 Also in J. Comp. Physics, 121, No.1, 1995, 324-330.
  • Ewing, R.; Iliev, O.; Margenov, S.; Vassilevski, P.:
    Numerical study of three multilevel preconditioners for solving 2D unsteady Navier-Stokes equations.
    Technical report No. 1992-08 of Enhanced Oil Recovery Institute, University of Wyoming Comp. Meth. Appl. Mech. Engng, 121(1995), 177-186.
  • Iliev, O.:
    Numerical investigation of 2D laminar flow and solute transport in a channel with some sudden symetric expansions and contractions.
    Univ. of California, Los Angeles, Dept. of Mathematics, CAM report 1993-30, Jul 1993. Also in Numerical Heat Transfer,Part A, 26, No.6, Dec.1994, 739-748.
  • Churnaov, A.; Iliev, O.; Samarskii, A.; Vabishchevich, P.:
    Numerical simulation of convection/diffusion phase change problems.
    A review. Technical report of the Institute for Mathematical Modeling at Russian Acad. Sci., No.7, 1992 Int. J.Heat Mass Transfer, 36,No.17, 4095-4106(1993).
  • Bijev, I.; Iliev, O.; Manolov, V.:
    Numerical simulation of nitrogen diffusion in a solid chromium particle.
    Theoretical and Applied Mechanics, Year XXIV, No.2, 1993.
  • Iliev, O.; Naydenova, V.:
    Numerical simulation of contaminant transport in a settle-tank.
    Theoretical and Applied Mechanics, Year XXIV, No.3, 1993.
  • Cherepanov, A.; Iliev, O.; Manolov, V.:
    Mathematical modeling of heat and mass transfer processes in mushy region during steel solidification.
    Comptes rendus l`Academie bulgare des Sciences 1993 No.6,pp.17-20, in Russian.
  • Iliev, O.; Vabishchevish, P.:
    Fixed grid numerical methods for solving 2D crystallization problems taking into account the natural convection in the liquid metal.
    Vestnik Mosk. Univ., ser.15, Computational Mathematics and Cybernetics, 1993, No.2, pp.8-18, Russian.
  • Iliev, O.; Makarov, M.; Vassilevski, P.:
    On the usage iterative methods for solving 2D unsteady Navier-Stokes equations.
    Vestnik Mosk. Univ., ser.15, Computational Mathematics and Cybernetics, 1993, No.2, pp.19-28, Russian.
  • Iliev, O.; Videnova, V.:
    Mathematical modeling of non-stationary flow of liquid metal through vertical sprue tubes.
    Theoretical and Applied Mechanics, 1992, XXIII,No.2, pp.108-113, Sofia.
  • Esikova, N.; Iliev, O.; Vabishchevich, P.:
    Numerical investigation of crystallization and natural convection of liquid with temperature-dependent viscosity.
    Commun. Appl. Num. Meth., 8, 857-868, 1992.
  • Iliev, O.; Makarov, M.; Vassilvski, P.:
    Performance of certain iterative methods in solving implicit difference schemes for 2D Navier-Stokes equations.
    Int.J. Num. Met. Engng., 1992, 33,No.7
  • Iliev, O.; Makarov, M.:
    An iterative method for coupled solving 2D unsteady Navier Stokes equations.
    Comptes rendus de l'Academie bulgare des Sciences 1991, 44, No.7, 21-24.
  • Iliev, O.:
    Numerical investigation of laminar coupled, natural and forced, convection of the liquid metal in the entrance of vertical cooling tube.
    Theoretical and Applied Mechanics, Sofia, 1990, Year XX, No 1.pp.36-43.
  • Esikova, N.; Iliev, O.; Vabishchevich, P.:
    Numerical simulation of the natural convection of liquid with temperature dependent viscosity.
    Mathematical Modelling, Moscow, 1990, 2,3 15-22, Russian.
  • Iliev, O.; Vabishchevich, P.:
    Numerical investigation of heat and mass transfer during the crystallization of metal in a mould Comm.
    Appl. Num. Meth., 5, 515-526, 1989.
  • Esikova, N.; Iliev, O.; Vabishchevich, P.:
    Numerical investigation of temperature fields during the continuous casting of slyab ingots.
    J. Engineering Physics, 54, No 5, pp. 836-840, 1988, Russian.
  • Iliev, O.; Vabishchevich, P.:
    Numerical simulation of heat and mass transfer of liquid metal flow in channel.
    Modelling in mechanics, Novosibirsk, 2(19), 4, pp. 14-22, 1988, Russian.
  • Iliev, O.; Vabishchevich, P.:
    Solving numerically coupled problems of heat and mass transfer with phase change.
    Differential'nye uravnenia, 23, 1127-1132, 1987, Russian, English translation: Differential Equations, 23(7), 746-750, 1987.