| 1. Identity statement | |
| Reference Type | Journal Article |
| Site | mtc-m21b.sid.inpe.br |
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identifier | 8JMKD3MGP5W34M/3GD3H5E |
| Repository | sid.inpe.br/mtc-m21b/2014/05.30.02.29.09 (restricted access) |
| Last Update | 2017:07.21.17.48.00 (UTC) marcelo.pazos@inpe.br |
| Metadata Repository | sid.inpe.br/mtc-m21b/2014/05.30.02.29.10 |
| Metadata Last Update | 2018:06.04.03.04.18 (UTC) administrator |
| DOI | 10.1080/15567265.2013.840344 |
| ISSN | 1556-7265 1556-7273 |
| Label | isi 2014-05 SebastiaoSant:2014:IMSUDI |
| Citation Key | SebastiãoSant:2014:ImSuDi |
| Title | Impact of surface discontinuities on flowfield structure of a micronozzle array  |
| Year | 2014 |
| Month | Jan. |
| Access Date | 2024, Apr. 26 |
| Type of Work | journal article |
| Secondary Type | PRE PI |
| Number of Files | 1 |
| Size | 1806 KiB |
| 2. Context | |
| Author | 1 Sebastião, Israel Borges 2 Santos, Wilson Fernando Nogueira dos |
| Resume Identifier | 1 2 8JMKD3MGP5W/3C9JJCC |
| Group | 1 2 LCP-CTE-INPE-MCTI-GOV-BR |
| Affiliation | 1 Instituto Nacional de Pesquisas Espaciais (INPE) 2 Instituto Nacional de Pesquisas Espaciais (INPE) |
| Author e-Mail Address | 1 2 wilson@lcp.inpe.br |
| e-Mail Address | marcelo.pazos@inpe.br |
| Journal | Nanoscale And Microscale Thermophysical Engineering |
| Volume | 18 |
| Number | 1 |
| Pages | 54-79 |
| History (UTC) | 2016-07-03 20:59:22 :: administrator -> marcelo.pazos@inpe.br :: 2014 2017-07-21 17:48:00 :: marcelo.pazos@inpe.br -> administrator :: 2014 2018-06-04 03:04:18 :: administrator -> marcelo.pazos@inpe.br :: 2014 |
| 3. Content and structure | |
| Is the master or a copy? | is the master |
| Content Stage | completed |
| Transferable | 1 |
| Content Type | External Contribution |
| Version Type | publisher |
| Keywords | DSMC rarefied flow MEMS micronozzle supersonic flow |
| Abstract | This work carries out two-dimensional numerical simulations of rarefied gas flow in convergent-divergent micronozzles. Such a device is considered part of a micronozzle array. Although previous studies have investigated micronozzles with continuous divergent surfaces, the present work evaluates the impact of the surface smoothness on the flowfield structure by including discontinuities on the divergent contour. Such a scenario was not previously investigated. As a secondary goal, detailed physical explanations are given for those flow features reported but not extensively discussed in previous micronozzle studies. A direct simulation Monte Carlo method is employed to describe these flows due to the moderate rarefaction degree typically observed in microdevices. The results pointed out the sensitivity of the macroscopic propertiesvelocity, pressure, and temperaturedue to the geometric variations on the divergent surface. In addition, Knudsen number distributions are computed to map nonequilibrium flow regions. The results indicated that the proposed surface discontinuities do not play the main role in the investigated micronozzle flows. This finding was not previously reported for micronozzle flows and contradicts the expected behavior in macroflows, where shock waves and/or expansion waves arise in supersonic flows experiencing abrupt changes in the flow direction. |
| Area | COMB |
| Arrangement | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > LABCP > Impact of surface... |
| doc Directory Content | access |
| source Directory Content | there are no files |
| agreement Directory Content | there are no files |
| 4. Conditions of access and use | |
| Language | en |
| User Group | administrator marcelo.pazos@inpe.br |
| Reader Group | administrator marcelo.pazos@inpe.br |
| Visibility | shown |
| Read Permission | deny from all and allow from 150.163 |
| Update Permission | not transferred |
| 5. Allied materials | |
| Mirror Repository | iconet.com.br/banon/2006/11.26.21.31 |
| Next Higher Units | 8JMKD3MGPCW/3ET38CH |
| Citing Item List | sid.inpe.br/mtc-m21/2012/07.13.15.01.58 3 |
| Dissemination | WEBSCI; PORTALCAPES; SCOPUS. |
| Host Collection | sid.inpe.br/mtc-m21b/2013/09.26.14.25.20 |
| 6. Notes | |
| Empty Fields | alternatejournal archivingpolicy archivist callnumber copyholder copyright creatorhistory descriptionlevel format isbn lineage mark nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress project rightsholder schedulinginformation secondarydate secondarykey secondarymark session shorttitle sponsor subject targetfile tertiarymark tertiarytype url |
| 7. Description control | |
| e-Mail (login) | marcelo.pazos@inpe.br |
| update | |