3 papers
math.NA2020
The AAAtrig algorithm for rational approximation of periodic functions
Peter J. Baddoo
We present an extension of the AAA (adaptive Antoulas--Anderson) algorithm for periodic functions, called 'AAAtrig'. The algorithm uses the key steps of AAA approximation by (i) re…
physics.flu-dyn2019
Exact solutions for ground effect
Peter J. Baddoo, Melike Kurt, Lorna J. Ayton +1
"Ground effect" refers to the enhanced performance enjoyed by fliers or swimmers operating close to the ground. We derive a number of exact solutions for this phenomenon, thereby e…
physics.flu-dyn2019
Acoustic scattering by cascades with complex boundary conditions: compliance, porosity and impedance
Peter J. Baddoo, Lorna J. Ayton
We present a solution for the scattered field caused by an incident wave interacting with an infinite cascade of blades with complex boundary conditions. This extends previous stud…