Compressible flows of dense gases in boundary layers
dc.contributor.author | Whitlock, Sarah Turner | en |
dc.contributor.department | Engineering Mechanics | en |
dc.date.accessioned | 2014-03-14T21:31:20Z | en |
dc.date.adate | 2009-03-12 | en |
dc.date.available | 2014-03-14T21:31:20Z | en |
dc.date.issued | 1992 | en |
dc.date.rdate | 2009-03-12 | en |
dc.date.sdate | 2009-03-12 | en |
dc.description.abstract | The equations and numerics necessary for the analysis of dense-gas boundary-layer flows over arbitrarily shaped two-dimensional bodies are developed. The governing equations are derived from the Navier-Stokes-Fourier equations for a general fluid. A numerical method based on the second-order Davis-coupled scheme is employed to solve for mean flows over flat plates. Flows of nitrogen, sulfur hexafluoride, and toluene over adiabatic walls are examined; in addition, flows of nitrogen over heated and cooled walls are studied. Results indicate a breakdown of the standard correlations for the recovery factor and the Nusselt number due primarily to the substantial variations of the Prandtl number and the Chapman-Rubesin parameter throughout the boundary layer. The stability equations for two-dimensional inviscid disturbances in a general fluid are derived. The temporal stability of the mean flows of nitrogen is subsequently examined using the generalized inflection-point criterion extracted from these equations. Results reveal significant variations from standard ideal-gas predictions including the existence of flows for which neither heating nor cooling of the wall has a stabilizing effect. | en |
dc.description.degree | Master of Science | en |
dc.format.extent | ix, 138 leaves | en |
dc.format.medium | BTD | en |
dc.format.mimetype | application/pdf | en |
dc.identifier.other | etd-03122009-041304 | en |
dc.identifier.sourceurl | http://scholar.lib.vt.edu/theses/available/etd-03122009-041304/ | en |
dc.identifier.uri | http://hdl.handle.net/10919/41499 | en |
dc.language.iso | en | en |
dc.publisher | Virginia Tech | en |
dc.relation.haspart | LD5655.V855_1992.W54.pdf | en |
dc.relation.isformatof | OCLC# 26812925 | en |
dc.rights | In Copyright | en |
dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | en |
dc.subject.lcc | LD5655.V855 1992.W54 | en |
dc.subject.lcsh | Boundary layer | en |
dc.subject.lcsh | Gases, Compressed | en |
dc.title | Compressible flows of dense gases in boundary layers | en |
dc.type | Thesis | en |
dc.type.dcmitype | Text | en |
thesis.degree.discipline | Engineering Mechanics | en |
thesis.degree.grantor | Virginia Polytechnic Institute and State University | en |
thesis.degree.level | masters | en |
thesis.degree.name | Master of Science | en |
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