MICRO-METEOROLOGICAL DISPERSION PARAMETRISATION FOR SHORT RANGE RADIOACTIVE CONTAMINATION MODELLING IN THE ANGRA DOS REIS NUCLEAR POWER PLANT SITE (Contributo in atti di convegno)

Type

• Contributo in atti di convegno (Classe)
• Prodotto della ricerca (Classe)

Label

• MICRO-METEOROLOGICAL DISPERSION PARAMETRISATION FOR SHORT RANGE RADIOACTIVE CONTAMINATION MODELLING IN THE ANGRA DOS REIS NUCLEAR POWER PLANT SITE (Contributo in atti di convegno) (literal)

Anno

• 2012-01-01T00:00:00+01:00 (literal)

Alternative label

• U.Rizza , M.T. Vilhena, B. Bodmann, G.A. Degrazia, C.Mangia (2012)
  MICRO-METEOROLOGICAL DISPERSION PARAMETRISATION FOR SHORT RANGE RADIOACTIVE CONTAMINATION MODELLING IN THE ANGRA DOS REIS NUCLEAR POWER PLANT SITE
  in International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering, Rio De Janeiro, 08/05/2011
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• U.Rizza , M.T. Vilhena, B. Bodmann, G.A. Degrazia, C.Mangia (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#titoloVolume

• International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Universidade Federal do Rio Grande do Sul - UFRGS Istituto di Scienze dell'Atmosfera e del Clima - CNR ISAC Universidade Federal de Santa Maria - UFSM (literal)

Titolo

• MICRO-METEOROLOGICAL DISPERSION PARAMETRISATION FOR SHORT RANGE RADIOACTIVE CONTAMINATION MODELLING IN THE ANGRA DOS REIS NUCLEAR POWER PLANT SITE (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#isbn

• 978-85-63688-00-2 (literal)

Abstract

• In the present work we use an Eulerian diffusion approach as the base for a micro-meteorological dispersion parametrisation for short range radioactive contamination modelling in the An- gra dos Reis nuclear power plant site. The closure of the diffusion equation is implemented by means of eddy diffusivity (K-theory). The parametrisations for the eddy diffusivity co- efficients are determined from micro-meteorological parameters that were extracted from meso-scale Weather Research and Forecasting (WRF) simulations. The model is based on Taylors statistical theory together with a model for Eulerian turbulence spectra from a su- perposition of a buoyant and a shear contribution. We implement an interface between a LES model for the planetary boundary layer and orography related features of WRF and simulate four days, from February, the 1st to the 4th of 2010, for the environment around the nuclear power plant site at Angra dos Reis, Rio de Janeiro state, Brazil. After extraction of micro-meteorological data we determined the eddy diffusivities under the hypothesis of homogeneous turbulence. As the principal result we show the time dependence (for the time scale of a day) of the dimensionless vertical eddy diffusivity coefficients. (literal)

Editore

• ANS, American nuclear society (Editore)

Prodotto di

• Processi di trasporto turbolento e dispersione in atmosfera per la qualità dell'aria e il clima: teoria e modellistica (TA.P05.018.001) (Modulo)
• Institute of atmospheric sciences and climate (ISAC) (Istituto)

Autore CNR

• CRISTINA MANGIA (Persona)
• UMBERTO RIZZA (Unità di personale interno)

Incoming links:

Prodotto

• Institute of atmospheric sciences and climate (ISAC) (Istituto)
• Processi di trasporto turbolento e dispersione in atmosfera per la qualità dell'aria e il clima: teoria e modellistica (TA.P05.018.001) (Modulo)

Autore CNR di

• CRISTINA MANGIA (Persona)
• UMBERTO RIZZA (Unità di personale interno)

Editore di

• ANS, American nuclear society (Editore)