RT journal article
T1 An Evaluation of Inflow Profiles for CFD Modeling of Neutral ABL and Turbulent Airflow over a Hill Model
A1 Amahjour, N.
A1 Sofi, A.
A1 Rodríguez Galván, José Rafael
A1 Kharrim, A.E.
A1 Khamlichi, A.
A2 Matemáticas
K1 Computational wind engineering
K1 k-ε turbulence model
K1 Neutral Atmospheric Boundary Layer
K1 (ABL)
K1 Horizontal homogeneity
K1 Roughness surface
K1 FEM
K1 Hill
AB The implementation of the wind turbine is a major issue in the wind engineeringsector. However, the presence of wind turbines in the lower part of theatmospheric boundary layer (ABL) requires an appropriate study for thesimulation of turbulent airflow in the wind farm situated on hilly terrain. The useof precise Computational Fluid Dynamics (CFD) simulations for the ABL flowis vital for numerous applications, such as wind energy, building, urbanplanning, etc. To achieve accurate results, it is imperative that the inlet boundaryconditions produce vertical profiles that keep a uniform horizontal distribution(with no streamwise gradients) in the upstream region of the computationaldomain for all important parameters. A development approach is proposedherein, focused on the imposition of two different inlet profiles when used incombination with the rough z0-type scalable wall function. The horizontalhomogeneity of these profiles has been verified by 2D Reynolds averagedNavier-Stokes (RANS) through the examination of a neutral ABL in an emptycomputational domain using the k-ε turbulence model. The findings indicate thatthe use of this modeling approach can yield relatively consistent homogeneity ofneutral ABL for both inlet boundary conditions. Subsequently, sensitivityanalyses were performed on the inflow profiles to forecast the evolution of thebottom half of an idealized truly-neutral ABL and to accurately capture thecomplex dynamics of atmospheric flows over hilly terrain. This study comparesthe results with the CRIACIV (Inter-University Research Centre on BuildingAerodynamics and Wind Engineering) boundary layer wind tunnel experimentaldata, showing that the inflow profiles and the presence of topographic complexhave a significant impact on air velocity, turbulent kinetic energy and turbulenceintensity in the x-direction. The results obtained are in good
PB Isfahan University of Technology
SN 1735-3645
YR 2023
FD 2023
LK http://hdl.handle.net/10498/32406
UL http://hdl.handle.net/10498/32406
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 08-nov-2026