Matches in SemOpenAlex for { <https://semopenalex.org/work/W2034443256> ?p ?o ?g. }
Showing items 1 to 74 of
74
with 100 items per page.
- W2034443256 abstract "In this paper, pulsatile flow through a microchannel with step expansion shape and working as valveless microvalve is investigated. The design of the microchannel is such that it causes the production of different vortex structures in the flow field and near corners. Our primary objective is to investigate how geometrical parameters affect the performance of the microvalve under different flow conditions. Unsteady, two-dimensional axisymmetric flow of an incompressible Newtonian fluid with laminar regime was simulated numerically using finite element approach. In order to imitate the actuation mechanism of a micropump, a time-varying sinusoidal pressure was set at the inlet region of the microchannel. Two basic dimensions were found to have crucial effect on the flow field configuration and vortex generation: the expansion ratio of the channel and the distance of the obstacle from the expansion region. The frequency of the actuation mechanism was varied from 1Hz to 1000Hz to cover the working range for many micropump applications. As the pressure is a key factor and should be manipulated in the right way, the pressure contours were studied. Vortex growth was captured through a single cycle and their size and existence time was compared for different geometrical inputs. At last, Strouhal number which is a measure of unsteadiness of the flow was calculated. This way we can investigate the sensitivity of the flow to changes in block obstacle distance from the expansion section and the expansion ratio. The obtained results lead to better understanding of the physics of pulsatile flows through microchannels and help in improving the efficiency of the existing configuration in designing more efficient micropump systems." @default.
- W2034443256 created "2016-06-24" @default.
- W2034443256 creator A5024580972 @default.
- W2034443256 creator A5044329429 @default.
- W2034443256 creator A5070293637 @default.
- W2034443256 creator A5090373962 @default.
- W2034443256 date "2013-11-15" @default.
- W2034443256 modified "2023-09-24" @default.
- W2034443256 title "Study the Geometrical Effects on the Unsteady Pulsatile Flow Through a Microchannel With a Sudden Step Shape" @default.
- W2034443256 cites W1970592116 @default.
- W2034443256 cites W1992332773 @default.
- W2034443256 cites W2002641636 @default.
- W2034443256 cites W2014609842 @default.
- W2034443256 cites W2017223015 @default.
- W2034443256 cites W2024040974 @default.
- W2034443256 cites W2024332239 @default.
- W2034443256 cites W2028404626 @default.
- W2034443256 cites W2030884249 @default.
- W2034443256 cites W2053476795 @default.
- W2034443256 cites W2064982075 @default.
- W2034443256 cites W2077613208 @default.
- W2034443256 cites W2084356694 @default.
- W2034443256 cites W2158641490 @default.
- W2034443256 doi "https://doi.org/10.1115/imece2013-66315" @default.
- W2034443256 hasPublicationYear "2013" @default.
- W2034443256 type Work @default.
- W2034443256 sameAs 2034443256 @default.
- W2034443256 citedByCount "0" @default.
- W2034443256 crossrefType "proceedings-article" @default.
- W2034443256 hasAuthorship W2034443256A5024580972 @default.
- W2034443256 hasAuthorship W2034443256A5044329429 @default.
- W2034443256 hasAuthorship W2034443256A5070293637 @default.
- W2034443256 hasAuthorship W2034443256A5090373962 @default.
- W2034443256 hasConcept C121332964 @default.
- W2034443256 hasConcept C164705383 @default.
- W2034443256 hasConcept C38349280 @default.
- W2034443256 hasConcept C57879066 @default.
- W2034443256 hasConcept C63662833 @default.
- W2034443256 hasConcept C71924100 @default.
- W2034443256 hasConcept C79191276 @default.
- W2034443256 hasConceptScore W2034443256C121332964 @default.
- W2034443256 hasConceptScore W2034443256C164705383 @default.
- W2034443256 hasConceptScore W2034443256C38349280 @default.
- W2034443256 hasConceptScore W2034443256C57879066 @default.
- W2034443256 hasConceptScore W2034443256C63662833 @default.
- W2034443256 hasConceptScore W2034443256C71924100 @default.
- W2034443256 hasConceptScore W2034443256C79191276 @default.
- W2034443256 hasLocation W20344432561 @default.
- W2034443256 hasOpenAccess W2034443256 @default.
- W2034443256 hasPrimaryLocation W20344432561 @default.
- W2034443256 hasRelatedWork W1514242080 @default.
- W2034443256 hasRelatedWork W1544162968 @default.
- W2034443256 hasRelatedWork W1974808294 @default.
- W2034443256 hasRelatedWork W1979912426 @default.
- W2034443256 hasRelatedWork W1980254970 @default.
- W2034443256 hasRelatedWork W1980308048 @default.
- W2034443256 hasRelatedWork W2004749250 @default.
- W2034443256 hasRelatedWork W2076709683 @default.
- W2034443256 hasRelatedWork W2081574299 @default.
- W2034443256 hasRelatedWork W2475088617 @default.
- W2034443256 hasRelatedWork W25366936 @default.
- W2034443256 hasRelatedWork W2990189172 @default.
- W2034443256 hasRelatedWork W3012090577 @default.
- W2034443256 hasRelatedWork W3023206603 @default.
- W2034443256 hasRelatedWork W3043354264 @default.
- W2034443256 hasRelatedWork W3108086839 @default.
- W2034443256 hasRelatedWork W3109521107 @default.
- W2034443256 hasRelatedWork W3130861401 @default.
- W2034443256 hasRelatedWork W3137699318 @default.
- W2034443256 hasRelatedWork W3112244021 @default.
- W2034443256 isParatext "false" @default.
- W2034443256 isRetracted "false" @default.
- W2034443256 magId "2034443256" @default.
- W2034443256 workType "article" @default.