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7 papers · 1 filter
Curvature calculations for the level-set method
Karl Yngve Lervåg, Åsmund Ervik
The present work illustrates a difficulty with the level-set method to accurately capture the curvature of interfaces in regions that are of equal distance to two or more interface…
Extending a serial 3D two-phase CFD code to parallel execution over MPI by using the PETSc library for domain decomposition
Åsmund Ervik, Svend Tollak Munkejord, Bernhard Müller
To leverage the last two decades' transition in High-Performance Computing (HPC) towards clusters of compute nodes bound together with fast interconnects, a modern scalable CFD cod…
Experimental and computational studies of water drops falling through model oil with surfactant and subjected to an electric field
Åsmund Ervik, Svein Magne Hellesø, Svend Tollak Munkejord +1
The behaviour of a single sub-millimetre-size water drop falling through a viscous oil while subjected to an electric field is of fundamental importance to industrial applications…
A robust method for calculating interface curvature and normal vectors using an extracted local level set
Åsmund Ervik, Karl Yngve Lervåg, Svend Tollak Munkejord
The level-set method is a popular interface tracking method in two-phase flow simulations. An often-cited reason for using it is that the method naturally handles topological chang…
Modeling radiation in particle clouds: On the importance of inter-particle radiation for pulverized solid fuel combustion
Nils Erland L. Haugen, Reginald E. Mitchell
The importance of inter-particle radiation for clusters of gray and diffuse particles is investigated. The radiative cooling of each individual particle is found to vary strongly w…
Threats Management Throughout the Software Service Life-Cycle
Erlend Andreas Gjære, Per Håkon Meland
Software services are inevitably exposed to a fluctuating threat picture. Unfortunately, not all threats can be handled only with preventive measures during design and development,…