Validation of a Statistic Algorithm Applied to les Model - Part i: first and Second Order Statistics

The main objective of this work is to develop a statisticalalgorithm to process the data generated by the Large-Eddy-Simulationmodel (LES) in real time. The simulations analyzed here were based ona convective, neutral and stable periods. Mainly the temperature andvelocity components were analyzed. The new statistical algorithmgenerates all the first and second order statistic moments for “u,v,w, θ ,q”,and the components of TKE equation budget. All these parameters weredeveloped to the resolved and sub-grid scales and indicate agreementwith the expected profiles.O objetivo principal deste trabalho é desenvolver um algoritmoestatístico com o intuito de processar as saídas do modelo Large-Eddy-Simulation (LES) em tempo real. As simulações analisadas foram paraos períodos convectivo, neutro e estável. Principalmente a temperatura aumidade específica e as componentes da velocidade serão analisadas. Onovo algoritmo gera todos os momentos estatísticos de primeira e segundaordem para “u,v,w,θ ,q”, e as componentes da equação do balançode energia cinética turbulenta. Todos os parâmetros foram desenvolvidospara a escala resolvida e subgrade. Os perfis verticais para todas asvariáveis foram reproduzidos com sucesso validando assim o algoritmopara estas configurações

Impact of Aerosol Radiation Absorption on the Heat Budget and Dynamics of the Atmospheric Boundary Layer

The impact of aerosol radiation absorption on the heat budget and the dynamics of the PBL has been investigated using a Large Eddy Simulation model