Tormod Ravnanger Landet

Tormod Ravnanger Landet
University of Oslo · Department of Mathematics

MSc

About

6
Publications
923
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
11
Citations
Introduction
Working on exactly mass conserving discontinuous Galerkin solutions to the two-phase incompressible Navier-Stokes equations for air/water flows. Main author of Ocellaris, see www.ocellaris.org for details. On leave from DNV GL to work towards obtaining a PhD in Fluid Mechanics at the University of Oslo.
Additional affiliations
August 2008 - present
DNV GL
Position
  • Engineer

Publications

Publications (6)
Preprint
Full-text available
In free-surface flows, such as breaking ocean waves, the momentum field will have a discontinuity at the interface between the two immiscible fluids, air and water, but still be smooth in most of the domain. Using a higher-order numerical method is more efficient than increasing the number of low-order computational cells in areas where the solutio...
Preprint
Full-text available
We compare three iterative pressure correction schemes for solving the Navier-Stokes equations with a focus on exactly divergence free solution with higher order discontinuous Galerkin discretisations. The investigated schemes are the incremental pressure correction scheme on the standard differential form (IPCS-D), the same scheme on algebraic for...
Article
Full-text available
Solving the Navier-Stokes equations when the density field contains a large sharp discontinuity---such as a water/air free surface---is numerically challenging. Convective instabilities cause Gibbs oscillations which quickly destroy the solution. We investigate the use of slope limiters for the velocity field to overcome this problem in a way that...
Conference Paper
Full-text available
We present an overview of the continuous and discontinuous Galerkin finite element methods (CG-FEM, DG-FEM) for numerical solution of the transport equation and show how the Navier-Stokes equations can be solved with CG-FEM in both a coupled and segregated manner. We show convergence of the implemented Navier-Stokes solvers for single-phase flows o...
Conference Paper
An efficient Monte Carlo method is developed to perform the stochastic analysis of slamming loads on marine structures. The probability distribution of the maximum impact force during slamming is established for a given stationary sea state. The method is demonstrated by using a uniform wedge and Wagner’s flat plate theory. Stochastic effects relat...