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Analysis of Single and Dual Under-Expanded, Rarefied Jets

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dc.contributor.advisor Shuryak, Edward en_US
dc.contributor.author Li, Wenhai en_US
dc.contributor.other Department of Mechanical Engineering en_US
dc.date.accessioned 2012-05-15T18:04:53Z
dc.date.accessioned 2015-04-24T14:52:42Z
dc.date.available 2012-05-15T18:04:53Z
dc.date.available 2015-04-24T14:52:42Z
dc.date.issued 2010-12-01 en_US
dc.identifier Li_grad.sunysb_0771E_10294.pdf en_US
dc.identifier.uri http://hdl.handle.net/1951/55523 en_US
dc.identifier.uri http://hdl.handle.net/11401/72581 en_US
dc.description.abstract A numerical study, using the Direct Simulation Monte Carlo (DSMC) approach, of the interaction effects between two identical sonic under-expanded nitrogen jets under rarefied conditions is reported. In this paper, the effects of the jet stagnation Knudsen number (Kn<sub>s</sub>), the ratio of the stagnation-to-background pressure (P<sub>s</sub>/P<sub>b</sub>), and the distance between the jet orifices (L/D) were investigated for a range of these parameters. The background pressure has a very significant effect on the physics of flow, and the interactions between the two jets affect the location of the Mach disks for both the primary and secondary jets. When P<sub>s</sub>/P<sub>b</sub> is relatively large (P<sub>s</sub>/P<sub>b</sub>>200), the separation distance L/D has only a mild effect on the location of the Mach disk in the secondary jet. A study of the rotational-translational non-equilibrium showed large deviations between the translational and rotational temperatures in the vicinity of the orifice plate. en_US
dc.description.sponsorship This work is sponsored by the Stony Brook University Graduate School in compliance with the requirements for completion of degree. en_US
dc.format Monograph en_US
dc.format.medium Electronic Resource en_US
dc.language.iso en_US en_US
dc.publisher The Graduate School, Stony Brook University: Stony Brook, NY. en_US
dc.subject.lcsh Mechanical Engineering -- Aerospace Engineering en_US
dc.subject.other DSMC, Interacting Jets, Rarefied Flows, Under-Expanded en_US
dc.title Analysis of Single and Dual Under-Expanded, Rarefied Jets en_US
dc.type Dissertation en_US
dc.mimetype Application/PDF en_US
dc.contributor.committeemember Robert Kukta en_US
dc.contributor.committeemember Xiaoin Li. en_US

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