Výsledky vyhledávání - "Grégory Turbelin"

Akademický článek

Characterizing Variations in Concentration Data Measured From Unknown Releases

Autor: Sarvesh Kumar Singh, Grégory Turbelin, Jean‐Pierre Issartel

Publikováno v: Earth and Space Science, Vol 6, Iss 8, Pp 1512-1531 (2019)

The statistics of concentration data, measured during unknown atmospheric dispersion events, are not fully understood although they are required in modeling, assessment, uncertainty analysis, and information fusion. The concentrations measured over a

Externí odkaz: https://doaj.org/article/2ba2f27786c0461db311a53b3905a923

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Reconstruction of an atmospheric tracer source in an urban-like environment

Autor: Amir-Ali Feiz, Sarvesh Kumar Singh, Pierre Ngae, Pramod Kumar, Grégory Turbelin

Publikováno v: Journal of Geophysical Research: Atmospheres. 120:12589-12604

This study describes a methodology combining a recently proposed renormalization inversion technique with a building-resolving computational fluid dynamics (CFD) approach for source retrieval in the geometrically complex urban regions. It presents th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dd9e6e048e44be7de2e662bdd0e27bef
https://doi.org/10.1002/2015jd024110

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Reconstruction of an atmospheric tracer source in Fusion Field Trials: Analyzing resolution features

Autor: Sarvesh Kumar Singh, Jean-Pierre Issartel, Pramod Kumar, Grégory Turbelin, Amir Ali Feiz

Publikováno v: Journal of Geophysical Research: Atmospheres. 120:6192-6206

Reconstruction of unknown atmospheric releases using measured concentrations is an ill-posed inverse problem. Due to insufficient measurements and dispersion model uncertainties, reliable interpretation of a retrieved source is limited by lack of res

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4ef2905b6bf658cabd9aa292172f5202
https://doi.org/10.1002/2015jd023099

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Assessment of a CFD model for short-range plume dispersion: Applications to the Fusion Field Trial 2007 (FFT-07) diffusion experiment

Autor: Grégory Turbelin, Sarvesh Kumar Singh, Amir Ali Feiz, Pierre Ngae, Pramod Kumar

Publikováno v: Atmospheric Research
Atmospheric Research, Elsevier, 2017, 197, pp.84--93. ⟨10.1016/j.atmosres.2017.06.025⟩
Atmospheric Research, 2017, 197, pp.84--93. ⟨10.1016/j.atmosres.2017.06.025⟩

International audience; Simulations of the short-range plume dispersion under different atmospheric conditions can provide essential information for the development of source reconstruction methodologies that allows to retrieve the location and inten

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::facebb784468ae93ed052d3639bd8ff0
https://hal.archives-ouvertes.fr/hal-01562955

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Uncertainty characterization in the retrieval of an atmospheric point release

Autor: Grégory Turbelin, Raj Rani, Sarvesh Kumar Singh, Pramod Kumar

Publikováno v: Atmospheric Environment
Atmospheric Environment, 2017, 152, pp.34--50. ⟨10.1016/j.atmosenv.2016.12.016⟩
Atmospheric Environment, Elsevier, 2017, 152, pp.34--50. ⟨10.1016/j.atmosenv.2016.12.016⟩

The study proposes a methodology in a recent inversion technique, called as Renormalization, to characterize the uncertainties in the reconstruction of a point source. The estimates are derived for measuring the inversion error, the degree of model f

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b624554af92c71b1b6a01e3f4f1ef015
https://hal.science/hal-01424484

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Optimization of sensor networks for the estimation of atmospheric pollutants sources

Autor: Grégory Turbelin, Amer Chpoun, Pierre Ngae, Hamza Kouichi, Amir-Ali Feiz, Emerson Barbosa

Publikováno v: WIT Transactions on Ecology and the Environment
WIT Transactions on Ecology and the Environment, WIT Press, 2016, Air Pollution XXIV, 207, pp.11-21. ⟨10.2495/AIR160021⟩
WIT Transactions on Ecology and the Environment, 2016, Air Pollution XXIV, 207, pp.11-21. ⟨10.2495/AIR160021⟩

International audience; This study describes a process to design a sensor network. This network could include: wireless mobile sensors deployed by first responders in hazardous material operations, stationary sensors used to protect an area against a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a1b438ea35bf36d68d186c59b410038
https://doi.org/10.2495/air160021

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Wavelet cross-correlation analysis of wind speed series generated by ANN based models

Autor: Michel Grignon, Grégory Turbelin, Pierre Ngae

Publikováno v: Renewable Energy
Renewable Energy, 2009, 34, 4, pp.1024--1032. ⟨10.1016/j.renene.2008.08.016⟩
Renewable Energy, Elsevier, 2009, 34, 4, pp.1024--1032. ⟨10.1016/j.renene.2008.08.016⟩

International audience; To obtain, over medium term periods, wind speed time series on a site, located in the southern part of the Paris region (France), where long recording are not available, but where nearby meteorological stations provide large s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c33bbfce80eb970c6858581b2fa94f36
https://doi.org/10.1016/j.renene.2008.08.016

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Reconstructing source terms from atmospheric concentration measurements: Optimality analysis of an inversion technique

Autor: Sarvesh Kumar Singh, Jean-Pierre Issartel, Grégory Turbelin

Publikováno v: Journal of Advances in Modeling Earth Systems
Journal of Advances in Modeling Earth Systems, 2014, 6 (4), pp.1244--1255. ⟨10.1002/2014MS000385⟩
Journal of Advances in Modeling Earth Systems, American Geophysical Union, 2014, 6 (4), pp.1244--1255. ⟨10.1002/2014MS000385⟩

International audience; In the event of an accidental or intentional contaminant release in the atmosphere, it is imperative, for managing emergency response, to diagnose the release parameters of the source from measured data. Reconstruction of the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::42bffedeba45db4dfc750015e4de8d25
https://hal.science/hal-01176791

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CFD calculations of indicial lift responses for bluff bodies

Autor: Rene Jean Gibert, Grégory Turbelin

Publikováno v: Wind and Structures
Wind and Structures, 2002, 5 (2_3_4), pp.245-256. ⟨10.12989/was.2002.5.2_3_4.245⟩

International audience; Two-dimensional formulations for wind forces on elongated bodies, such as bridge decks, are reviewed and links with expressions found in two-dimensional airfoil theory are pointed out. The present research focus on indicial li

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6825cb469f79594c9ff5b317a549575f
https://doi.org/10.12989/was.2002.5.2_3_4.245

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Estimates of lateral dispersion parameters in low wind speed conditions

Autor: Pierre Ngae, Hambaliou Baldé, Grégory Turbelin

Publikováno v: International Journal of Environment and Pollution
International Journal of Environment and Pollution, Inderscience, 2012, 50 (1-4), pp.441--450. ⟨10.1504/IJEP.2012.051214⟩
International Journal of Environment and Pollution, 2012, 50 (1-4), pp.441--450. ⟨10.1504/IJEP.2012.051214⟩

International audience; Wind speed time series recorded during stable low wind speed conditions are typically non-stationary, with large horizontal oscillations, commonly known as meandering. In this paper, two wavelet-based methods are proposed to o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b4ad4a5f6aae34756073507195fd2dbd
https://hal.archives-ouvertes.fr/hal-01176757

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