CFD simulation of the near-neutral atmospheric boundary layer: New temperature inlet profile consistent with wall functions

Toparlar, Yasin; Blocken, Bje Bert; Maiheu, Bino; Heijst, Gert Jan van

doi:10.1016/j.jweia.2019.05.016

Cited by 29 publications

(3 citation statements)

References 64 publications

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“…Although surface heat flux has been applied in numerous successor simulations, such as Toparlar et al (2019), its influence on precursor-generated inflow profiles has not been thoroughly investigated. Accounting for surface heat flux in simulations is essential in many applications, as it can significantly impact the accuracy of the results, mainly when modeling atmospheric thermal stability conditions and their effects on buoyancy forces and vertical flow mixing.…”

Section: Literature Reviewmentioning

confidence: 99%

Parametric sensitivity analysis of precursor generated inflow profiles including atmospheric stability for RANS-based ABL microscale wind simulations

Hågbo,

Venkatraman,

Buckingham

2023

Preprint

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Atmospheric thermal stability significantly influences global circulation patterns and local weather. However, microscale wind simulations often rely on idealized atmospheric boundary layer (ABL) inlet profiles that inadequately consider this essential factor. Addressing this limitation, this study provides a tool for generating realistic ABL inflow profiles by conducting a comprehensive parametric investigation. Utilizing a computational fluid dynamics (CFD) precursor model that incorporates surface heat fluxes, the study analyzes the impact of various meteorological, atmospheric, and geographic parameters on ABL wind profiles. These include factors such as ground heating/cooling, atmospheric pressure differences, roughness length, latitude, and the number of iterations, with assessments across different atmospheric stabilities. More than a hundred RANS-based precursor simulations were conducted to systematically examine the effects of these parameters on ABL wind profiles. The results reveal that certain parameters have clear and straightforward effects on the wind profiles, while others exhibit more complex dependencies on atmospheric stability. The findings offer practical guidelines for the creation of realistic inflow profiles in microscale wind simulations, thereby contributing to more accurate predictions in applications such as wind farm design, pollutant dispersion studies, and urban wind assessments.

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Section: Literature Reviewmentioning

confidence: 99%

Parametric sensitivity analysis of precursor generated inflow profiles including atmospheric stability for RANS-based ABL microscale wind simulations

Hågbo,

Venkatraman,

Buckingham

2023

Preprint

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“…The modification of the standard wall function that accounts for the surface roughness has been extensively discussed in the CFD community (e.g. Durbin et al [52], Blocken et al [53], Parente et al [54], Toparlar et al [55], among others). Two versions of the wall functions for the rough walls are the most used, the version based on the aerodynamic length z 0 , and the k s -type wall function where the sand-grain roughness height k s is used.…”

Section: Ground/wall Boundary Conditions and Terrain Roughness Modellingmentioning

confidence: 99%

A rational hybrid RANS-LES model for CFD predictions of microclimate and environmental quality in real urban structures

Hadžiabdić

Hafizović

Ničeno

et al. 2022

Building and Environment

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“…Some research works were focused on manufacturing appropriate prototypes, which were experimentally assessed in wind tunnels, to investigate their performance [25][26][27][28]. Moreover, widespread studies were concerned with the computational fluid dynamics (CFD) usage [29][30][31]. These studies were dealing with the wind turbine simulations by focusing on the aerodynamics and air flow.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Performance Enhancement of Vertical Wind Turbine Using Composite Blades Reinforced by Zinc-Oxide Nanoparticles. (Dept. M.)

Khader¹,

Mansour²,

Fahham³

et al. 2020

MEJ. Mansoura Engineering Journal

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rapid depletion of fossil fuels is the major concern of the industrial countries' over the last decades. Fortunately, the rapid depletion problem can be resolved using clean and cheap renewable resources like wind and solar energy. These renewable energy sources can compensate for the shortage between the growing demand and the available traditional types of energies in countries that are suffering from insufficient traditional energies. Apparently, renewable energy sources can be used in many applications which include generating cheap electricity for the deprived communities in the desert areas in addition to powering the desalination plants for producing the

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CFD simulation of the near-neutral atmospheric boundary layer: New temperature inlet profile consistent with wall functions

Cited by 29 publications

References 64 publications

Parametric sensitivity analysis of precursor generated inflow profiles including atmospheric stability for RANS-based ABL microscale wind simulations

Parametric sensitivity analysis of precursor generated inflow profiles including atmospheric stability for RANS-based ABL microscale wind simulations

A rational hybrid RANS-LES model for CFD predictions of microclimate and environmental quality in real urban structures

Dynamic Performance Enhancement of Vertical Wind Turbine Using Composite Blades Reinforced by Zinc-Oxide Nanoparticles. (Dept. M.)

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