Optimisation technique for improving wind downscaling results by estimating roughness parameters

Montero, G.; Rodríguez, Eduardo; Oliver, Albert; Calvo, Javier Bartolome; Escobar, J. M.; Montenegro, R.

doi:10.1016/j.jweia.2018.01.011

Cited by 7 publications

(3 citation statements)

References 78 publications

(141 reference statements)

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“…This system divides atmospheric turbulence into six stability classes labelled A, B, C, D, E, and F. Class A represents highly unstable conditions, while class F indicates moderately stable scenarios. In the context of an emergency, directly observed data by first responders or extraction for a meteorologically corrected forecast [24] can be scarce. Measured mean wind at a reference altitude and observation in situ, such as daytime insolation or cloudiness during the night, may sometimes be the only valid data available.…”

Section: From Meteorological Conditions To Atandmodel Flow Input Datamentioning

confidence: 99%

Harmonisation in Atmospheric Dispersion Modelling Approaches to Assess Toxic Consequences in the Neighbourhood of Industrial Facilities

Lacome,

Leroy,

Joubert

et al. 2023

Atmosphere

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In the land use planning framework in the neighbourhood of industrial facilities, the current approach to predicting the consequences of massive toxic gas releases is generally based on Gaussian or integral models. For many years, CFD models have been more and more used in this context, in accordance with the development of high-performance computing (HPC). The present paper focuses on harmonising input data for atmospheric transport and dispersion (AT&D) modelling between the widely used approaches. First, a synthesis of the practice’s harmonisation for atmospheric dispersion modelling within the framework of risk assessment is presented. Then, these practices are applied to a large-scale INERIS ammonia experimental release. For illustration purposes, the impact of the proposed harmonisation will be evaluated using different approaches: the SLAB model, the FDS model, and the Code_Saturne model. The two main focuses of this paper are the adaptation of the source term dealing with a massive release and the wind flow modelling performance using an experimental signal for CFD model inflow. Finally, comparisons between the modelling and experimental results enable checking the consistency of these approaches and reinforce the importance of the input data harmonisation for each AT&D modelling approach.

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Section: From Meteorological Conditions To Atandmodel Flow Input Datamentioning

confidence: 99%

Harmonisation in Atmospheric Dispersion Modelling Approaches to Assess Toxic Consequences in the Neighbourhood of Industrial Facilities

Lacome,

Leroy,

Joubert

et al. 2023

Atmosphere

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“…É o caso de autores que construíram uma tabela com faixas ótimas para valores de z 0 para serem aplicadas a um determinado tipo de superfície. Montero et al (2018) fizeram método para a criação de uma tabela de valores de z 0 e d, para seu estudo na ilha de Gran Canaria (Espanha). Sua tabela compreende vários tipos de solos e foi aplicada a um modelo de vento downscaling.…”

Section: éTodosunclassified

Revisão de Métodos de Estimativa do Comprimento de Rugosidade Aerodinâmica para Fins de Obtenção de Energia Eólica

Saraiva

Barbosa

Neto

et al. 2022

Proceedings IX Simpósio Brasileiro De Sistemas Elétricos

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In this article, is proposed to identify the methods for estimating aerodynamic roughness length (z 0 ) best suited to feasibility studies for the construction of wind farms. For that, a systematic review is carried out to filter the latest works that apply different methods to find z 0 values. Identifying z 0 for a specific surface is important to simulate the vertical wind profile and mechanical and turbulent fluxes estimation in the atmospheric surface layer. Must be considered those factors in viability studies for a wind farm, therefore impacting the calculation of energy efficiency. Morphometric and micrometeorological methods are listed, besides presenting works that have developed tables with z 0 optimal values for different types of land. In the end, situations are presented in which each method has better applicability. Resumo: Neste artigo, se propõe identificar os métodos de estimativa de comprimento de rugosidade aerodinâmica (z 0 ) mais adequados a estudos de viabilidade para construção de parques eólicos. Para tal, foi realizada uma revisão sistemática com o intuito de filtrar os trabalhos mais recentes que aplicam diferentes metodologias para encontrar valores de z 0 . A identificação do z 0 para uma superfície específica é importante para simular o perfil vertical do vento e estimar fluxos mecânicos e turbulentos na camada superficial da atmosfera. Esses fatores devem ser considerados em um estudo de viabilidade de um parque eólico, pois causam impacto no cálculo da eficiência energética. São listados os métodos morfométricos e micrometeorológicos, além de apresentar os trabalhos que desenvolveram tabelas com valores ótimos de z 0 para diferentes tipos de terrenos. Ao final são apresentadas as situações em que cada método tem melhor aplicabilidade.

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“…Thus, many authors have studied its relationship, providing typical values for each land cover. In this chapter, we have performed a comprehensive literature review to collect the intervals of z 0 and d values for each land coverage [60]. In particular, we have focused on the coverages present in the "Information System of Land Cover of Spain" (SIOSE).…”

Section: Land Cover Databasesmentioning

confidence: 99%

Characterization of Geographical and Meteorological Parameters

Montero

Rodríguez

Oliver

2018

Wind Field and Solar Radiation Characterization and Forecasting

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This chapter is devoted to the introduction of some geographical and meteorological information involved in the numerical modeling of wind fields and solar radiation. Firstly, a brief description of the topographical data given by a Digital Elevation Model and Land Cover databases are provided. In particular, the Information System of Land Cover of Spain (SIOSE) is considered. The study is focused in the roughness length and the displacement height parameters that appear in the logarithmic wind profile, as well as in the albedo related to solar radiation computation. An extended literature review and characterization of both parameters are reported. Next, the concept of atmospheric stability is introduced from the Monin-Obukhov similarity theory to the recent revision of Zilitinkevich of the Neutral and Stable Boundary Layers (SBL). The latter considers the effect of the free-flow static stability and baroclinicity on the turbulent transport of momentum and of the Convective Boundary Layers (CBL), more precisely, the scalars in the boundary layer, as well as the model of turbulent entrainment. 2.1 Geographical data The main geographical information for wind and solar radiation modeling may be classified into two general databases, the topographical data related to the orography of the region to be studied and the land cover databases containing the information of the land uses. In this section, both are introduced.

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Optimisation technique for improving wind downscaling results by estimating roughness parameters

Cited by 7 publications

References 78 publications

Harmonisation in Atmospheric Dispersion Modelling Approaches to Assess Toxic Consequences in the Neighbourhood of Industrial Facilities

Harmonisation in Atmospheric Dispersion Modelling Approaches to Assess Toxic Consequences in the Neighbourhood of Industrial Facilities

Revisão de Métodos de Estimativa do Comprimento de Rugosidade Aerodinâmica para Fins de Obtenção de Energia Eólica

Characterization of Geographical and Meteorological Parameters

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