| 1. Identificação | ||||
| Tipo de Referência | Artigo em Revista Científica (Journal Article) | |||
| Site | mtc-m21b.sid.inpe.br | |||
| Código do Detentor | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identificador | 8JMKD3MGP3W34P/3NNF77E | |||
| Repositório | sid.inpe.br/mtc-m21b/2017/04.18.13.32 (acesso restrito) | |||
| Última Atualização | 2017:04.18.13.32.36 (UTC) administrator | |||
| Repositório de Metadados | sid.inpe.br/mtc-m21b/2017/04.18.13.32.36 | |||
| Última Atualização dos Metadados | 2018:06.04.02.27.23 (UTC) administrator | |||
| DOI | 10.1016/j.proci.2016.06.175 | |||
| ISSN | 1540-7489 | |||
| Chave de Citação | BourginAlvYanFacBau:2017:EfLeNu | |||
| Título | Effects of Lewis numbers and kinetics on spontaneous ignition of hydrogen jets  | |||
| Ano | 2017 | |||
| Data de Acesso | 08 maio 2024 | |||
| Tipo de Trabalho | journal article | |||
| Tipo Secundário | PRE PI | |||
| Número de Arquivos | 1 | |||
| Tamanho | 899 KiB | |||
| 2. Contextualização | ||||
| Autor | 1 Bourgin, E. 2 Alves, M. M. 3 Yang, C. 4 Fachini Filho, Fernando 5 Bauwens, L. | |||
| Identificador de Curriculo | 1 2 3 4 8JMKD3MGP5W/3C9JH48 | |||
| Grupo | 1 2 3 4 LABCP-COCTE-INPE-MCTIC-GOV-BR | |||
| Afiliação | 1 MBDA 2 University of Calgary 3 University of Calgary 4 Instituto Nacional de Pesquisas Espaciais (INPE) 5 University of Calgary | |||
| Endereço de e-Mail do Autor | 1 2 3 4 fachini@lcp.inpe.br 5 bauwens@ucalgary.ca | |||
| Revista | Proceedings of the Combustion Institute | |||
| Volume | 36 | |||
| Número | 2 | |||
| Páginas | 2833-2839 | |||
| Nota Secundária | A1_ENGENHARIAS_III | |||
| Histórico (UTC) | 2017-04-18 13:32:36 :: simone -> administrator :: 2017-04-18 13:32:36 :: administrator -> simone :: 2017 2017-04-18 13:33:11 :: simone -> administrator :: 2017 2018-06-04 02:27:23 :: administrator -> simone :: 2017 | |||
| 3. Conteúdo e estrutura | ||||
| É a matriz ou uma cópia? | é a matriz | |||
| Estágio do Conteúdo | concluido | |||
| Transferível | 1 | |||
| Tipo do Conteúdo | External Contribution | |||
| Tipo de Versão | publisher | |||
| Palavras-Chave | Jet ignition Lewis number Chain-branching Hydrogen | |||
| Resumo | The transient process following a hydrogen leak into the atmosphere initiates as a contact surface appears separating air heated by the leading shock from hydrogen cooled by expansion. Diffusion of heat and species produces reactive mixture, potentially leading to ignition. Reactions being very temperature-sensitive, their rate peaks close to the hot air-rich side of the interface, where the small fuel concentration depends upon the fuel Lewis number. If the Lewis number is less than unity, diffusion brings in more fuel than temperature-controlled chemistry consumes. If greater, diffusion does not bring in as much fuel as chemistry would burn. Results from the current analysis for multistep kinetics also show that the role of the H Lewis number is crucial. In the short time limit, the evolution of the diffusion layer appears as a perturbation superimposed to the self-similar non-reactive diffusion solution. Initiation is very slow compared with steps consuming one reactant and an intermediate species, while some steps associated with termination are extremely fast. The approximation being made, assuming initiation much smaller than most rates, and termination much faster, is very accurate since the corresponding ratios are of the order of 10(5). The resulting problem still requires a numerical solution. A time-splitting algorithm combines exact solutions to three subproblems, avoiding issues such as stiffness of the kinetics. The problem is formulated not in physical space but in the similarity variable of the diffusion problem, hence avoiding difficulties associated with the initial singularity when the layer has zero thickness, and the resulting uncertainties. These are distinct advantages over numerical simulations, which however will retain a reasonable accuracy at later times. Results confirm the role of the Lewis number. They also show two distinct regimes: an early one mainly controlled by initiation, and a later one controlled by chain-branching, with a sharp transition. | |||
| Área | COMB | |||
| Arranjo | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > LABCP > Effects of Lewis... | |||
| Conteúdo da Pasta doc | acessar | |||
| Conteúdo da Pasta source | não têm arquivos | |||
| Conteúdo da Pasta agreement |
| |||
| 4. Condições de acesso e uso | ||||
| Idioma | en | |||
| Arquivo Alvo | bourgin_effects.pdf | |||
| Grupo de Usuários | simone | |||
| Grupo de Leitores | administrator simone | |||
| Visibilidade | shown | |||
| Política de Arquivamento | denypublisher denyfinaldraft24 | |||
| Permissão de Leitura | deny from all and allow from 150.163 | |||
| Permissão de Atualização | não transferida | |||
| 5. Fontes relacionadas | ||||
| Unidades Imediatamente Superiores | 8JMKD3MGPCW/3ET38CH | |||
| Lista de Itens Citando | ||||
| Divulgação | WEBSCI; PORTALCAPES; COMPENDEX. | |||
| Acervo Hospedeiro | sid.inpe.br/mtc-m21b/2013/09.26.14.25.20 | |||
| 6. Notas | ||||
| Campos Vazios | alternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn label lineage mark mirrorrepository month nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress project rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject tertiarymark tertiarytype url | |||
| 7. Controle da descrição | ||||
| e-Mail (login) | simone | |||
| atualizar | ||||