Now showing items 1-12 of 12

  • Kim, Jihwan; Pedersen, Geir Kleivstul; Løvholt, Finn; LeVeque, Randall J. (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2017)
    The nonlinear shallow water model is widely used in the study of tsunami propagation, but an increasing number of studies are dedicated to the dispersion dynamics of tsunamis. If the wave dispersion becomes important, ...
  • Birknes-Berg, Jørn; Pedersen, Geir Kleivstul (Research report / Forskningsrapport, 2017)
    There are many different numerical methods for solving the Navier-Stokes equations for problems with a free surface. Some examples are volume of fluid (VOF), Marker and cell (MAC), level set, smooth particle hydrodynamics ...
  • Pedersen, Geir Kleivstul (Research report / Forskningsrapport, 2001)
    In a preceding paper, [7], physical optics was developed for a selection of discrete long wave solutions by application a perturbation expansion. Herein, we approach discrete optics from analysis of discrete energy, in the ...
  • Jensen, Atle; Pedersen, Geir Kleivstul; Wood, Deborah J. (Research report / Forskningsrapport, 2001)
    This paper focus on experiments on run-up of strongly nonlinear waves on a moderately steep beach of 10.5deg inclination. Velocity fields are obtained by the PIV (Particle Image Velocimetry) technique. Acceleration ...
  • Smith, Lisa; Jensen, Atle; Pedersen, Geir Kleivstul (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2016)
    This study presents an experimental investigation of plunging breakers on a sloping beach with an inclination of 5.1°. The incident waves are solitary waves with various amplitudes from non-breaking waves to plunging ...
  • Løvholt, Finn; Kaiser, Gunilla; Glimsdal, Sylfest; Scheele, Lasse; Harbitz, Carl Bonnevie; Pedersen, Geir Kleivstul (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2012)
    On 11 March 2011 the Tohoku tsunami devastated the east coast of Japan, claiming thousands of casualties and destroying coastal settlements and infrastructure. In this paper tsunami generation, propagation, and inundation ...
  • Wood, Deborah J.; Pedersen, Geir Kleivstul; Jensen, Atle (Research report / Forskningsrapport, 2001)
    An industrial Navier-Stokes solver (FLUENT) is used to examine steep waves as they run up a steep beach (10.54$^0$). The volume of fluid method (VOF) is used to model the free surface. Comparison with experimental results ...
  • Lindstrøm, Erika Kristina; Verschaeve, Joris C. G.; Pedersen, Geir Kleivstul (Research report / Forskningsrapport, 2014)
    The present report is concerned with the evolution of boundary layers during runup of solitary waves on a beach in a wave tank of depth 0.2m. It comprises both theory and high resolution PIV measurements of velocity profiles. ...
  • Pedersen, Geir Kleivstul (Research report / Forskningsrapport, 2001)
    We formulate generation of tsunamis by earthquakes as a linear potential flow problem with rapid in and out-flux at the sea bottom. Starting from solutions for a few simplified bottom deformations we proceed to establish ...
  • Løvholt, Finn; Pedersen, Geir Kleivstul; Harbitz, Carl Bonnevie; Glimsdal, Sylfest; Kim, Jihwan (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
    This review presents modelling techniques and processes that govern landslide tsunami generation, with emphasis on tsunamis induced by fully submerged landslides. The analysis focuses on a set of representative examples ...
  • Løvholt, Finn; Lynett, P.; Pedersen, Geir Kleivstul (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2013)
    Tsunamis induced by rock slides plunging into fjords constitute a severe threat to local coastal communities. The rock slide impact may give rise to highly non-linear waves in the near field, and because the wave lengths ...
  • Løvholt, Finn; Glimsdal, Sylfest; Lynett, P.; Pedersen, Geir Kleivstul (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
    Tsunamis induced by rock slides constitute a severe hazard towards coastal fjord communities. Fjords are narrow and rugged with steep slopes, and modeling the short-frequency and high-amplitude tsunamis in this environment ...