5 papers
Two-way coupling of gravity waves and wind farm wakes: a reduced-order boundary-layer model
Hossein A. Kafiabad, Majid Bastankhah
This paper develops a reduced-order numerical framework for modelling the two-way coupling between gravity waves and turbulent wakes in large-scale wind farms. Starting with the no…
Modelling Farm-to-Farm Interaction Using a Fast Linearised Numerical Approach
Alexia Everley, Hossein A. Kafiabad, Majid Bastankhah
This paper presents a computationally efficient, linearised numerical method for modelling aerodynamic interactions between wind farms. The linearised two-dimensional incompressibl…
Lagrangian filtering for wave-mean flow decomposition
Lois E. Baker, Hossein A. Kafiabad, Cai Maitland-Davies +1
Geophysical flows are typically composed of wave and mean motions with a wide range of overlapping temporal scales, making separation between the two types of motion in wave-resolv…
Efficient Lagrangian averaging with exponential filters
Abhijeet Minz, Lois E. Baker, Hossein A. Kafiabad +1
Lagrangian averaging is a valuable tool for the analysis and modelling of multiscale processes in fluid dynamics. The numerical computation of Lagrangian (time) averages from simul…
Inhomogeneity-induced wavenumber diffusion
Michael R. Cox, Hossein A. Kafiabad, Jacques Vanneste
Inertia-gravity waves are scattered by background flows as a result of Doppler shift by a non-uniform velocity. In the WKB regime, the scattering process reduces to a diffusion in…