dc.creator | Guranov, Iva | |
dc.creator | Milićev, Snežana | |
dc.creator | Stevanović, Nevena | |
dc.date.accessioned | 2023-01-19T11:41:09Z | |
dc.date.available | 2023-01-19T11:41:09Z | |
dc.date.issued | 2019 | |
dc.identifier.isbn | 978-86-909973-7-4 | |
dc.identifier.uri | https://machinery.mas.bg.ac.rs/handle/123456789/3973 | |
dc.description.abstract | A steady compressible isothermal slip gas flow in a microtube is analyzed for low Reynolds
numbers. The microtube is with varying cross-section, which from the standpoint of geometry
gives three considered cases: convergent microtube, divergent microtube and microtube with
constant radius. The gas flow is caused by the pressure difference between the inlet and the outlet
cross-section. The solution for pressure and mass flow rate is obtained by macroscopic approach
from Navier-Stokes equations with the second order velocity slip boundary condition. Analysis of
the order of dimensionless terms in governing equations is possible with the usage of exact
relation between Reynolds, Mach and Knudsen numbers. The solution procedure for this flow
model is based on perturbation approach, where significant variables are assumed in the form of
perturbation series. The first approximation represents the solution for the continuum flow
conditions, and the second approximation incorporates the effect of gas rarefaction. The obtained
solution is compared with verified results of numerical experiment found in literature and good
agreement is achieved. Hence, the reliability of obtained solution and presented method is
confirmed. | sr |
dc.language.iso | en | sr |
dc.publisher | Serbian Society of Mechanics | sr |
dc.relation | info:eu-repo/grantAgreement/MESTD/Technological Development (TD or TR)/35046/RS// | sr |
dc.relation | info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/174014/RS// | sr |
dc.rights | openAccess | sr |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
dc.source | Proceedings of the The 7th International Congress of Serbian Society of Mechanics, Sremski Karlovci, June 24-26, 2019 | sr |
dc.subject | slip gas flow | sr |
dc.subject | microtube | sr |
dc.subject | rarefied gas flow | sr |
dc.subject | isothermal | sr |
dc.subject | compressible | sr |
dc.title | Pressure distribution in microtubes with variable cross section | sr |
dc.type | conferenceObject | sr |
dc.rights.license | BY | sr |
dc.citation.epage | 8 | |
dc.citation.rank | M33 | |
dc.citation.spage | 1 | |
dc.identifier.fulltext | http://machinery.mas.bg.ac.rs/bitstream/id/9185/Guranov3.pdf | |
dc.identifier.rcub | https://hdl.handle.net/21.15107/rcub_machinery_3973 | |
dc.type.version | publishedVersion | sr |