Browsing NTNU Open by Author "Munkejord, Svend Tollak"

Now showing items 21-34 of 34

    • Innovation in a heterogeneous CCS research centre, managerial and organizational challenges 

      Aasen, Tone Merethe; Mølnvik, Mona J.; Aarlien, Rune; Bredesen, Rune; Munkejord, Svend Tollak; Brunsvold, Amy; Gundersen, Truls (Journal article; Peer reviewed, 2012)
      Recently, the Norwegian authorities have established a number of Centres for Environment-friendly Energy Research (CEER), intended to develop new knowledge, foster breakthrough technology and promote innovation in order ...

    • Investigation of droplets impinging on a deep pool: transition from coalescence to jetting 

      Zhao, He; Munkejord, Svend Tollak; Brunsvold, Amy (Journal article; Peer reviewed, 2011)
      An experimental investigation of droplets impinging vertically on a deep liquid pool of the same fluid was conducted. Coalescence and jetting as two of the main regimes were identified and studied. Five fluids, distilled ...

    • Investigation of non-equilibrium effects during the depressurization of carbon dioxide 

      Log, Alexandra Metallinou; Munkejord, Svend Tollak; Hammer, Morten; Hafner, Armin; Deng, Han; Austegard, Anders (Chapter, 2022)
      Predicting the phase change of liquid CO2 during depressurization is highly relevant for the application in refrigeration units and for safety analysis in the context of CO2 capture and storage (CCS). For abrupt depressurization ...

    • Modeling of Heat Transfer in Two-Phase Flow Using the Level-Set Method 

      Gjennestad, Magnus Aashammer (Master thesis, 2013)
      The implementation of a two-phase flow model, developed at SINTEF Energy Research and relying on the level-set method, was extended through the discretization and implementation of an advection-diffusion equation for ...

    • Modelling of heat transport in two-phase flow and of mass transfer between phases using the level-set method 

      Gjennestad, Magnus Aashammer; Munkejord, Svend Tollak (Journal article; Peer reviewed, 2015)
      We describe mathematical models for heat transport and for mass transfer between phases due to vaporization and condensation. These models have been implemented in a framework for detailed two-phase flow calculations based ...

    • Models and numerical methods for two-phase flow of CO2 in pipes 

      Reinertsen, Aleksander (Master thesis, 2015)
      Key to the transport phase of carbon capture and storage (CCS) is understanding the behavior of liquid or supercritical CO2 in pipelines, and the consequences of cracks and pipe depressurization. It is therefore useful to ...

    • On solutions to equilibrium problems for systems of stiffened gases 

      Flåtten, Tore; Morin, Alexandre; Munkejord, Svend Tollak (Journal article; Peer reviewed, 2011)
      We consider an isolated system of N immiscible fluids, each following a stiffened-gas equation of state. We consider the problem of calculating equilibrium states from the conserved fluid-mechanical properties, i.e., the ...

    • Pipeline flow modelling with source terms due to leakage: The straw method 

      Morin, Alexandre; Kragset, Steinar; Munkejord, Svend Tollak (Journal article; Peer reviewed, 2012)
      A numerical method for calculating the leakage flow rate through a crack in a pressurized pipeline is presented. Calculations of the flow inside, and leakage from, a pipeline with a running crack are performed. For the ...

    • Sharp interface simulations of surfactant-covered drops in electric fields 

      Teigen, Knut Erik; Lervåg, Karl Yngve; Munkejord, Svend Tollak (Chapter, 2010)
      A level-set method for computations of interfacial flows with insoluble surfactants with electric fields is presented. The discontinuities at the interface are captured in a sharp manner using the ghost-fluid method. The ...

    • Simulation of two-phase flow with varying surface tension. 

      Lervåg, Karl Yngve (Master thesis, 2008)
      This thesis is a study on the effects of varying surface tension along an interface separating two fluids. Varying surface tension leads to tangential forces along the interface. This is often called the Marangoni effect. ...

    • The Local Level-Set Extraction Method for Robust Calculation of Geometric Quantities in the Level-Set Method 

      Ervik, Åsmund (Master thesis, 2012)
      The level-set method is an implicit interface capturing method that can be used in two or more dimensions. The method is popular e.g. in computer graphics, and as here, in simulations of two-phase flow. The motivation for ...

    • Towards an engineering tool for the prediction of running ductile fractures in CO2 pipelines 

      Skarsvåg, Hans Langva; Hammer, Morten; Munkejord, Svend Tollak; Log, Alexandra Metallinou; Dumoulin, Stephane; Gruben, Gaute (Peer reviewed; Journal article, 2023)
      A prerequisite for the deployment of CO2 capture and storage (CCS) is to establish a large network of high-pressure transport pipelines. It is then vital to assess new and existing pipeline designs for running ductile ...

    • Transition between coalescence and bouncing of droplets on a deep liquid pool 

      Zhao, He; Brunsvold, Amy; Munkejord, Svend Tollak (Journal article; Peer reviewed, 2011)
      This study focused on the bouncing of sub-millimetric droplets (below 0.7 mm) of three different fluids, distilled water, technical ethanol and 1-propanol on a deep liquid pool of the same fluids. Four different flow regimes ...

    • Wave propagation in multicomponent flow models 

      Flåtten, Tore; Morin, Alexandre; Munkejord, Svend Tollak (Journal article; Peer reviewed, 2010)
      We consider systems of hyperbolic balance laws governing flows of an arbitrary number of components equipped with general equations of state. The components are assumed to be immiscible. We compare two such models: one in ...