A simple steady-state inflow model of the neutral and stable atmospheric boundary layer applied to wind turbine wake simulations
Year: 2024
Type: article
Abstract: . Wind turbines are increasing in size and operate more frequently above the atmospheric surface layer, which requires improved inflow models for numerical simulations of turbine interaction. In this work, a steady-state Reynolds-averaged Navier-Stokes (RANS) model of the neutral and stable atmospheric boundary layer (ABL) is introduced. The model employs a buoyancy source using a prescribed Brunt-Väisälä frequency, does not require a global turbulence length scale limiter, and is only dependent on two non-dimensional numbers. The proposed model assumes a constant temperature gradient over the entire ABL, which is a strong assumption but leads to a simple and well behaving inflow model. RANS wake simulations subjected to shallow and tall ABLs are performed and the results show a good agreement with results from two different large-eddy simulation codes in terms of velocity deficit.
Source: Wind energy science
Authors: Maarten Paul van der Laan, Mark Kelly, Mads Baungaard, Antariksh Dicholkar, Emily Louise Hodgson
Institution: Technical University of Denmark
Language: English
Subfield: Aerospace Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,132
OpenAlex ID: W4403739165