Bjørn-Ove Heimsund

Utdanning	Dr.scient (Ph.D.) i anvendt matematikk
Stilling	Seniorforsker, Senter for Integrert Petroleumsforskning
Forskningsfelt	Numeriske metoder for strømning i porøse media
Adresse	Realfagsbygget, Allégaten 41, 5007 Bergen
Kontor	4014
Telefon	Kontor (+47) 555 83691 Faks (+47) 555 88265 Privat (+47) 55 29 37 07
E-post	Bjorn-Ove.Heimsund@uib.no

Vitenskapelige artikler

• Xue-Cheng Tai, Bjørn-Ove Heimsund, and Jinchao Xu
  Rate of Convergence for Parallel Subspace Correction Methods for nonlinear variational inequalities
  Proceedings of DDM13, pp. 127-138, 2001
• Bjørn-Ove Heimsund, Xue-Cheng Tai, and Junping Wang
  Superconvergence for the gradient of finite element approximations by L²-projections
  SIAM Journal on Numerical Analysis, Volume 40, Number 4, pp. 1263-1280, 2002
• Bjørn-Ove Heimsund, Tony Chan, Trygve K. Nilssen, and Xue-Cheng Tai
  Level set methods for a parameter identification problem
  In book: Analysis and optimization of differential systems, Kluwer Academic Publishers, pp. 189-200, 2003
• Bjørn-Ove Heimsund and Jarle Berntsen
  On a class of ocean model instabilities that may occur when applying small time steps, implicit methods, and low viscosities
  Ocean Modelling, volume 7, issues 1-2, pp. 135-144, 2004
• Bjørn-Ove Heimsund and Xue-Cheng Tai
  A two-mesh superconvergence method with applications for adaptivity
  AMS Contemporary Mathematics, 2005
• Jørg Aarnes and Bjørn-Ove Heimsund
  Multiscale Discontinuous Galerkin Methods for Elliptic Problems with Multiple Scales
  Lecture Notes in Computational Science and Engineering, volume 44, pp. 1-20, Springer Verlag, 2005
• Bjørn-Ove Heimsund and Magne S. Espedal
  A Parallel Eulerian-Lagrangian Localized Adjoint Method
  Advances in Water Resources, Elsevier, 2005
• Bjørn-Ove Heimsund
  High performance numerical libraries in Java
  Unifob technical report, UP 02/2005
• Bjørn-Ove Heimsund, Erlend Øian, and Gunnar E. Fladmark
  Some performance investigations of a compositional reservoir flow simulator
  10^th European Conference on the Mathematics of Oil Recovery (ECMOR X), Amsterdam, 4-7 September, 2006
• Erlend Øian, Bjørn-Ove Heimsund, Geir Terje Eigestad, and Ivar Aavatsmark
  Control volume discretisations on non-matching 3D meshes
  10^th European Conference on the Mathematics of Oil Recovery (ECMOR X), Amsterdam, 4-7 September, 2006
• Randi Holm, Roland Kaufmann, Bjørn-Ove Heimsund, Erlend Øian, and Magne S. Espedal
  Meshing of domains with complex internal geometries
  Numerical Linear Algebra with Applications, volume 13, issue 9 (November 2006), p. 717-731.
• Ivar Aavatsmark, Geir Terje Eigestad, Bjørn-Ove Heimsund, Bradley T. Mallison, Jan Martin Nordbotten, Erlend Øian
  A New Finite Volume Approach to Efficient Discretization on Challenging Grids
  2007 SPE Reservoir Simulation Symposium, Houston, Texas, 26-28. February.

Presentasjoner

• Bjørn-Ove Heimsund, Tony Chan, Trygve K. Nilssen, and Xue-Cheng Tai
  Level set methods for a parameter identification problem
  Workshop on Nonlinear PDE, Department of Mathematics, University of Bergen, April 25-26, 2002
• Thomas F. Russell, Bjørn-Ove Heimsund, Helge K. Dahle, and Magne S. Espedal
  Eulerian-Lagrangian methods for non-linear advection problems
  CMA workshop on Level set methods and Applications, September 9-10, 2003
• Bjørn-Ove Heimsund
  Compositional reservoir simulation
  Fault-Facies seminar series at CIPR, November 18 and 25, 2004
• Bjørn-Ove Heimsund, Erlend Øian, and Gunnar E. Fladmark
  ATHENA - In-house reservoir flow simulator
  CIPR Petroleum Technology Seminar, May 9-10, 2006
• Bjørn-Ove Heimsund, Erlend Øian, and Gunnar E. Fladmark
  Some performance investigations of a compositional reservoir flow simulator
  10^th European Conference on the Mathematics of Oil Recovery (ECMOR X), Amsterdam, 4-7 September, 2006
• Randi Holm, Roland Kaufmann, Bjørn-Ove Heimsund, Erlend Øian, and Magne S. Espedal
  Meshing of domains with complex internal geometries
  Eighth IMACS International Symposium on Iterative Methods in Scientific Computation, November 14-17, 2006.

Programvare

• Matrisebibliotek - Datastrukturer for tette og glisne matriser, faktoriseringer og likningsløsere
• Reservoarsimulator - Simulerer væskestrøm i porøe bergarter. Fokus på ustrukturerte gitter

Hovedfagsoppgaven (Cand. Scient.)

• Variasjonsmetoder og iterative metoder
• Hovedfagseksamen var den 11.12 2001
• Veileder var Professor Xue-Cheng Tai

Doktorgradsprosjektet (Dr. Scient.)

• Mathematical and Numerical Methods for Reservoir Fluid Flow Simulation
• Tesen ble forsvart den 27.5 2005
• Veiledere var Professor Magne S. Espedal og Professor Kenneth H. Karlsen
• Del av prosjektet Robuste numeriske metoder for partielle differensiallikninger