Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Marco Tullio de Vilhena"'
Stochastic Wind Profiles Determination for Radioactive Substances Released from Nuclear Power Plants
Publikováno v:
Nuclear Power
In this review we discuss a stochastic turbulent wind profile based on the three-dimensional stochastic Langevin equation for Gram-Chalier probability density function and a known mean wind velocity. Its solution permits to simulate radioactive subst
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2b722569d8af5161bdf23176c6d48714
http://www.intechopen.com/articles/show/title/stochastic-wind-profiles-determination-for-radioactive-substances-released-from-nuclear-power-plants
http://www.intechopen.com/articles/show/title/stochastic-wind-profiles-determination-for-radioactive-substances-released-from-nuclear-power-plants
Publikováno v:
Progress in Nuclear Energy. 91:240-249
The ITS2 method is used to solve the point-reactor kinetics equations in the integral formulation with arbitrary number of delayed neutron groups and Newtonian temperature feedback. The method is based on low-order Taylor series expansions of neutron
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::15cc39846ec9e1c6758a4e4e2ec50326
https://doi.org/10.1016/j.pnucene.2016.05.001
https://doi.org/10.1016/j.pnucene.2016.05.001
Autor:
Tiziano Tirabassi, Régis Sperotto de Quadros, Everson da Silva, Daniela Buske, Marco Tullio de Vilhena
Publikováno v:
Proceeding Series of the Brazilian Society of Computational and Applied Mathematics.
O presente trabalho refere-se ao problema de dispersao de poluentes na atmosfera com a emissao realizada atraves de uma fonte movel. Para representar este fenomeno, apresenta-se um novo modelo matematico que utiliza a equacao da adveccao-difusao. Res
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a5bda884ce8bb1e9525a1215889a0df1
https://doi.org/10.5540/03.2017.005.01.0420
https://doi.org/10.5540/03.2017.005.01.0420
Autor:
Marco Tullio de Vilhena, Guilherme Jahnecke Weymar, Daniela Buske, Bardo E. J. Bodmann, Jonas C. Carvalho
Publikováno v:
Proceeding Series of the Brazilian Society of Computational and Applied Mathematics.
Este estudo apresenta um modelo de dispersao de poluente que sofre reacoes fotoquimicas, o modelo utiliza a equacao de adveccao-difusao tridimensional para representar a dispersao desses poluentes na Camada Limite Atmosferica (CLA), e para denotar as
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e1ffa7756e0f497f1a4d2195fc6ae461
https://doi.org/10.5540/03.2017.005.01.0422
https://doi.org/10.5540/03.2017.005.01.0422
Autor:
Régis Sperotto de Quadros, Guilherme Jahnecke Weymar, Marco Tullio de Vilhena, Juliana Ávila Contreira, Daniela Buske
Publikováno v:
Proceeding Series of the Brazilian Society of Computational and Applied Mathematics.
Neste trabalho e desenvolvida uma metodologia totalmente analitica com a finalidade de calcular o fluxo de calor nao-estacionario em paredes externas de edificacoes. Esta aplicacao e de grande importancia nos calculos de carga termica de ambientes co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7dddb88941c275103313da3b98aa56ec
https://doi.org/10.5540/03.2017.005.01.0198
https://doi.org/10.5540/03.2017.005.01.0198
Publikováno v:
Integral Methods in Science and Engineering, Volume 1 ISBN: 9783319593838
The present contribution reports on a new methodology to solve flow problems with complex boundary geometries by an equivalent plane parallel problem. We revisit conformal transformation between curvilinear coordinate systems but that are local asymp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f7cfcb67e9a44014c1b93e6220e52227
https://doi.org/10.1007/978-3-319-59384-5_18
https://doi.org/10.1007/978-3-319-59384-5_18
Publikováno v:
Integral Methods in Science and Engineering, Volume 2 ISBN: 9783319593869
In this paper, we consider a transient vertical one-dimensional flow problem of water in unsaturated porous media, modelled by the nonlinear Richards equation. Constitutive relations of Van Genuchten are employed to represent the hydraulic capacity a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b4db7023490ca93ac7a70057d1958f9b
https://doi.org/10.1007/978-3-319-59387-6_9
https://doi.org/10.1007/978-3-319-59387-6_9
Publikováno v:
Progress in Nuclear Energy. 70:112-118
An explicit analytical solution is developed for the point reactor kinetics equations in the integral formulation from low-order Taylor series expansions of neutron density and reactivity functions. Numerical instability, resulting from the stiff nat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c13c07569ff5d04afbe99db6ee86ed8
https://doi.org/10.1016/j.pnucene.2013.07.008
https://doi.org/10.1016/j.pnucene.2013.07.008
Autor:
Dayana Q. de Camargo, Sérgio Q. Bogado Leite, Bardo E. J. Bodmann, Marco Tullio de Vilhena, Antonio Carlos Marques Alvim
Publikováno v:
Progress in Nuclear Energy. 69:59-63
In this work we developed a stochastic model to simulate neutron transport in a heterogeneous medium, considering continuous neutron spectra and the nuclear properties with its continuous dependence on energy. This model was implemented using the Mon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::81c7c37afffbd33400db41d9eceabade
https://doi.org/10.1016/j.pnucene.2013.05.007
https://doi.org/10.1016/j.pnucene.2013.05.007
Publikováno v:
Journal of Quantitative Spectroscopy and Radiative Transfer. 105:1-7
In this work, we solve the radiative heat transfer equation for an arbitrary source with distributed internal energy sources and two bounded black boundaries which are kept at constant temperatures in a slab using the LTS N method. Numerical simulati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5633c9b2393add640300e8d33dc5fb00
https://doi.org/10.1016/j.jqsrt.2006.10.009
https://doi.org/10.1016/j.jqsrt.2006.10.009