DC Field | Value | Language |
---|---|---|
dc.contributor.author | Park, Chul | ko |
dc.date.accessioned | 2013-03-04T00:21:18Z | - |
dc.date.available | 2013-03-04T00:21:18Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2004 | - |
dc.identifier.citation | JOURNAL OF THERMOPHYSICS AND HEAT TRANSFER, v.18, no.4, pp.527 - 533 | - |
dc.identifier.issn | 0887-8722 | - |
dc.identifier.uri | http://hdl.handle.net/10203/81054 | - |
dc.description.abstract | Using an existing expression for the state-to-state rotational transition rate coefficients, which is derived from the experimental data taken at temperatures equal to or below 1500 K, the master equation for rotational states is integrated with time for N-2. The postshock temperature considered is from 400 to 128,000 K. From the numerical solutions of the master equation, the effective collision numbers and characteristic relaxation times are determined. The results show that the effective collision number varies from about 4 at 400 K to about 700 at 128,000 K. The product of the rotational relaxation time and pressure is determined to be 2.47 x 10(-14)T(1.692) atm . s. The calculated rotational relaxation time is larger than the vibrational relaxation time at temperatures above 12,000 K, but is believed to be only hypothetical there because vibration-rotation coupling will pull the temperatures of these two modes together. The present model approximately reproduces the rotational temperature values measured in a shock tube by Sharma and Gillespie and by Fujita et al. up to a postshock temperature of 90,000 K. | - |
dc.language | English | - |
dc.publisher | AMER INST AERONAUT ASTRONAUT | - |
dc.subject | VIBRATIONAL RELAXATION | - |
dc.subject | ULTRASONIC DETERMINATION | - |
dc.subject | RAMAN-SPECTROSCOPY | - |
dc.subject | DIATOMIC GASES | - |
dc.subject | TEMPERATURES | - |
dc.subject | NITROGEN | - |
dc.title | Rotational relaxation of N-2 behind a strong shock wave | - |
dc.type | Article | - |
dc.identifier.wosid | 000224770100013 | - |
dc.identifier.scopusid | 2-s2.0-8644251419 | - |
dc.type.rims | ART | - |
dc.citation.volume | 18 | - |
dc.citation.issue | 4 | - |
dc.citation.beginningpage | 527 | - |
dc.citation.endingpage | 533 | - |
dc.citation.publicationname | JOURNAL OF THERMOPHYSICS AND HEAT TRANSFER | - |
dc.identifier.doi | 10.2514/1.11442 | - |
dc.type.journalArticle | Article; Proceedings Paper | - |
dc.subject.keywordPlus | VIBRATIONAL RELAXATION | - |
dc.subject.keywordPlus | ULTRASONIC DETERMINATION | - |
dc.subject.keywordPlus | RAMAN-SPECTROSCOPY | - |
dc.subject.keywordPlus | DIATOMIC GASES | - |
dc.subject.keywordPlus | TEMPERATURES | - |
dc.subject.keywordPlus | NITROGEN | - |
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