Blar i NTNU Open på forfatter "Lund, Halvor"

Viser treff 1-6 av 6

    • CO2 pipeline integrity: A new evaluation methodology 

      Berstad, Torodd; Dørum, Cato; Jakobsen, Jana Poplsteinova; Kragset, Steinar; Li, Hailong; Lund, Halvor; Morin, Alexandre; Munkejord, Svend Tollak; Mølnvik, Mona Jacobsen; Nordhagen, Håkon Ottar; Østby, Erling (Journal article; Peer reviewed, 2011)
      A coupled fluid-structure model for pipeline integrity simulations has been developed. The pipe material and fracture propagation have been modelled using the finite-element method with a local fracture criterion. The ...

    • Epidemic spreading on complex networks: a reaction-diusion approach 

      Lund, Halvor (Master thesis, 2009)

    • Rankine-Hugoniot-Riemann solver for steady multidimensional conservation laws with source terms 

      Lund, Halvor; Müller, Florian; Müller, Bernhard; Jenny, Patrick (Journal article; Peer reviewed, 2014)
      The Rankine-Hugoniot-Riemann (RHR) solver has been designed to solve steady multidimensional conservation laws with source terms. The solver uses a novel way of incorporating cross fluxes as source terms. The combined ...

    • Relaxation models for two-phase flow with applications to CO2 transport 

      Lund, Halvor (Doktoravhandlinger ved NTNU, 1503-8181; 2013:224, Doctoral thesis, 2013)
      This thesis presents mathematical models for two-phase pipeline flow, with an emphasis on applications to CO2 pipeline flow, as well as numerical methods suitable for solving these models. The considered models form a ...

    • Splitting methods for relaxation two-phase flow models 

      Lund, Halvor; Aursand, Peder (Journal article; Peer reviewed, 2013)
      A model for two-phase pipeline flow is presented, with evaporation and condensation modelled using a relaxation source term based on statistical rate theory. The model is solved numerically using a Godunov splitting scheme, ...

    • Thermodynamic modeling with equations of state: present challenges with established methods 

      Wilhelmsen, Øivind; Aasen, Ailo; Skaugen, Geir; Aursand, Peder; Austegard, Anders; Aursand, Eskil; Gjennestad, Magnus Aashammer; Lund, Halvor; Linga, Gaute; Hammer, Morten (Journal article; Peer reviewed, 2017)
      Equations of state (EoS) are essential in the modeling of a wide range of industrial and natural processes. Desired qualities of EoS are accuracy, consistency, computational speed, robustness and predictive ability outside ...