4 citations · 4 across the 1 of their papers we have counts for
7 papers · 1 filter
Second-order theory for multi-hinged directional wavemakers
Andreas H. Akselsen
The second-order directional wavemaker theory for regular and irregular waves is extended to multi-hinged wavemakers and combined piston--flap wavemaker systems. Derived expression…
A precise conformally mapped method for water waves in complex transient environments
Andreas H. Akselsen
A two-dimensional water wave model based on conformal mapping is presented. The model is exact in the sense that it does not rely on truncated series expansions, nor suffer any num…
Langmuir-type vortices in boundary layers driven by a criss-cross wavy wall topography
Andreas H. Akselsen, Simen Å. Ellingsen
We investigate a mechanism to manipulate wall-bounded flows whereby wave-like undulations of the wall topography drives the creation of bespoke longitudinal vortices. A resonant in…
Sheared free-surface flow over three-dimensional obstructions of finite amplitude
Andreas H. Akselsen, Simen Å Ellingsen
When shallow water flows over uneven bathymetry, the water surface is modulated. This type of problem has been revisited numerous times since it was first studied by Lord Kelvin in…
The Kelvin-Helmholtz/von Neumann Stability of Discrete Representations of the Two-Fluid Model for Stratified Two-Phase Flow
Andreas Holm Akselsen
Many dynamic pipe flow simulator tools are capable of predicting the onset of hydrodynamic flow instability through detailed simulation. These instabilities provide a natural mecha…
The Stability of Roll-Waves in Two-Phase Pipe Flow
Andreas Holm Akselsen
Roll-wave trains constitutes a well-known two-phase flow regime in pipes. There exists a one-parameter family of steady roll-wave train solutions, provided the flow conditions are…