• 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 (Journal article; Peer reviewed, 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 ...
    • Comparison of kinetic theory evaporation models for liquid thin-films 

      Aursand, Eskil; Ytrehus, Tor (Journal article; Peer reviewed, 2019)
      We summarize the background and derivation of non-equilibrium evaporation models from kinetic theory, and demonstrate how they may be applied in the context of fluid mechanics and heat transfer problems. We find that the ...
    • Film boiling and rapid phase transition of liquefied natural gas 

      Aursand, Eskil (Doctoral theses at NTNU;2019:70, Doctoral thesis, 2019)
      When liquefied natural gas (LNG) is spilled onto water there is a possibility that explosive rapid phase transition (RPT) events occur. According to experiments, these vapor explosions are highly unpredictable, with yields ...
    • Inclination dependence of planar film boiling stability 

      Aursand, Eskil (Journal article; Peer reviewed, 2018)
      Understanding the dynamics of film boiling is crucial for predicting its heat transfer properties. Besides the complete breakdown of film boiling (Leidenfrost point), the most prominent transition is the change from a ...
    • Inclined film boiling: Film stability and heat transfer 

      Aursand, Eskil; Davis, Stephen H. (Journal article; Peer reviewed, 2018)
      An inertially modified long-wave model is used to analyze the stability of inclined saturated film boiling. By performing quasi-parallel linear stability analysis on this model and combining the result with a heat-transfer ...
    • Modelling planar film boiling of arbitrary inclination with the lubrication approximation 

      Aursand, Eskil (Chapter, 2017)
      A model for inclined planar film boiling using the lubrication approximation is derived. A dimensionless form of this model is presented, and it is shown that for a given plane orientation, the dynamics of the film thickness ...
    • Optical Properties of truncated and coated spheroidal Nanoparticles on a Substrate 

      Aursand, Eskil (Master thesis, 2012)
      In nanoparticle research it is common to perform optical measurements on particle films during deposition, to help understand the growth process. GranFilm is a software under development which can calculate the optical ...
    • Performance analysis of heat and energy recovery ventilators using exergy analysis and nonequilibrium thermodynamics 

      Gjennestad, Magnus Aashammer; Aursand, Eskil; Magnanelli, Elisa; Pharoah, John George (Journal article; Peer reviewed, 2018)
      The increased attention to energy savings has contributed to more widespread use of energy recovery systems for building ventilation. We investigate the efficiency of such systems under different outdoor conditions using ...
    • Predicting triggering and consequence of delayed LNG RPT 

      Aursand, Eskil; Hammer, Morten (Journal article; Peer reviewed, 2018)
      We develop a model for delayed rapid phase transition (RPT) in LNG spills based on thermodynamics and nucleation theory which includes predictions of both triggering and vapor explosion consequence. We discover that the ...
    • 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 ...
    • Thermocapillary instability as a mechanism for film boiling collapse 

      Aursand, Eskil; Davis, Stephen H.; Ytrehus, Tor (Journal article; Peer reviewed, 2018)
      We construct a model to investigate the interfacial stability of film boiling, and discover that instability of very thin vapour films and subsequent large interface superheating is only possible if thermocapillary ...
    • 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 ...