3 papers
physics.flu-dyn2019
Nonmodal Tollmien-Schlichting waves
Joris C. G. Verschaeve
The instability of flows via two-dimensional perturbations is analyzed theoretically and numerically in a nonmodal framework. The analysis is based on results obtained in [Verschae…
physics.flu-dyn2017
A nonmodal stability analysis of the boundary layer under solitary waves
Joris C. G. Verschaeve, Geir K. Pedersen, Cameron Tropea
In the present treatise, a stability analysis of the bottom boundary layer under solitary waves based on energy bounds and nonmodal theory is performed. The instability mechanism o…
math.NA2016
Efficient preconditioners for saddle point systems with trace constraints coupling 2D and 1D domains
Miroslav Kuchta, Magne Nordaas, Joris C. G. Verschaeve +2
We study preconditioners for a model problem describing the coupling of two elliptic subproblems posed over domains with different topological dimension by a parameter dependent co…