Browsing SINTEF Open by Author "Aursand, Peder"

Now showing items 1-7 of 7

    • CO2 pipeline integrity: A coupled fluid-structure model using a reference equation of state for CO2 

      Aursand, Eskil; Aursand, Peder; Berstad, Torodd; Dørum, Cato; Hammer, Morten; Munkejord, Svend Tollak; Nordhagen, Håkon Ottar (Peer reviewed; Journal article, 2013)
      We present a coupled fluid-structure model to study crack propagation and crack arrest in pipelines. Numerical calculations of crack arrest, crack velocity and pressure profiles have been performed for steel pipes with an ...

    • A combined fluid-dynamic and thermodynamic model to predict the onset of rapid phase transitions in LNG spills 

      Lervåg, Karl Yngve; Skarsvåg, Hans Langva; Aursand, Eskil; Ouassou, Jabir Ali; Hammer, Morten; Reigstad, Gunhild Allard; Ervik, Åsmund; Fyhn, Eirik Holm; Gjennestad, Magnus Aashammer; Aursand, Peder; Wilhelmsen, Øivind (Peer reviewed; Journal article, 2020)
      Transport of liquefied natural gas (LNG) by ship occurs globally on a massive scale. The large temperature difference between LNG and water means LNG will boil violently if spilled onto water. This may cause a physical ...

    • An exponential time-differencing method for monotonic relaxation systems 

      Aursand, Peder; Evje, Steinar; Flåtten, Tore; Teigen, Knut Erik; Munkejord, Svend Tollak (Peer reviewed; Journal article, 2014)
      We present first and second-order accurate exponential time differencing methods for a special class of stiff ODEs, denoted as monotonic relaxation ODEs. Some desirable accuracy and robustness properties of our methods are ...

    • On the dispersive wave-dynamics of 2 x 2 relaxation systems 

      Aursand, Peder; Flåtten, Tore (Journal article; Peer reviewed, 2012)
      We consider hyperbolic conservation laws with relaxation terms. By studying the dispersion relation of the solution of general linearized 2 × 2 hyperbolic relaxation systems, we investigate in detail the transition between ...

    • The spinodal of single- and multi-component fluids and its role in the development of modern equations of state 

      Aursand, Peder; Gjennestad, Magnus Aashammer; Aursand, Eskil; Hammer, Morten; Wilhelmsen, Øivind (Journal article; Peer reviewed, 2016)
      The spinodal represents the limit of thermodynamic stability of a homogeneous fluid. In this work, we present a robust methodology to obtain the spinodal of multicomponent fluids described even with the most sophisticated ...

    • Towards a thorough Validation of Simulation Tools for CO2 Pipeline Transport 

      Drescher, Michael; Fahmi, Adil; Aursand, Peder; Hammer, Morten; Lund, Halvor; Stang, Hans Georg Jacob; Austegard, Anders (Journal article; Peer reviewed, 2017)
      In this work the Schlumberger flow assurance tool OLGA and SINTEF Energy Research in-house CFD tool are assessed for their ability to describe depressurization behaviour of CO2 pipelines. For this purpose, three full-bore ...

    • Well integrity for CO2 injection from ships: Simulation of the effect of flow and material parameters on thermal stresses 

      Aursand, Peder; Hammer, Morten; Lavrov, Alexandre; Lund, Halvor; Munkejord, Svend Tollak; Torsæter, Malin (Journal article; Peer reviewed, 2017)
      Ships have been shown to be the most cost-effective way to transport CO2 from many sources in the Nordic region to offshore storage sites. Injection from ships introduces new challenges for the integrity of CO2 injection ...