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Simulation of gas flows through micro-constrictions
| dc.creator | Ahmed, Imtiaz | |
| dc.date.accessioned | 2012-06-07T23:02:08Z | |
| dc.date.available | 2012-06-07T23:02:08Z | |
| dc.date.created | 2001 | |
| dc.date.issued | 2001 | |
| dc.identifier.uri | https://hdl.handle.net/1969.1/ETD-TAMU-2001-THESIS-A342 | |
| dc.description | Due to the character of the original source materials and the nature of batch digitization, quality control issues may be present in this document. Please report any quality issues you encounter to digital@library.tamu.edu, referencing the URI of the item. | en |
| dc.description | Includes bibliographical references (leaves 70-72). | en |
| dc.description | Issued also on microfiche from Lange Micrographics. | en |
| dc.description.abstract | A series of numerical simulations based on a spectral element formulation of compressible Navier-Stokes equations are performed for gas flows through micro-constrictions, and the thermal/fluidic transport through these devices is studied in detail. The dependence of flow characteristics on Knudsen number, Reynolds number and Mach number is investigated. Analyses of these simulation results show that rarefaction causes velocity slip on the constriction walls, resulting in increased mass flowrate. Shear stresses and the pressure distribution on the surface are decreased due to rarefaction, causing reduction in both the form- and viscous-drag. Compressibility also plays an important role for high inlet to outlet pressure ratio cases. It is also found that the work done by the viscous stresses significantly affects the heat transfer characteristics. | en |
| dc.format.medium | electronic | en |
| dc.format.mimetype | application/pdf | |
| dc.language.iso | en_US | |
| dc.publisher | Texas A&M University | |
| dc.rights | This thesis was part of a retrospective digitization project authorized by the Texas A&M University Libraries in 2008. Copyright remains vested with the author(s). It is the user's responsibility to secure permission from the copyright holder(s) for re-use of the work beyond the provision of Fair Use. | en |
| dc.subject | mechanical engineering. | en |
| dc.subject | Major mechanical engineering. | en |
| dc.title | Simulation of gas flows through micro-constrictions | en |
| dc.type | Thesis | en |
| thesis.degree.discipline | mechanical engineering | en |
| thesis.degree.name | M.S. | en |
| thesis.degree.level | Masters | en |
| dc.type.genre | thesis | en |
| dc.type.material | text | en |
| dc.format.digitalOrigin | reformatted digital | en |
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