Turbulent temperature profile in the quasi-fully developed region of a micro-tube
Turbulent temperature profiles in the quasi-fully developed region of a micro-tube were obtained numerically by solving the energy equation including the substantial derivative of pressure and viscous dissipation terms for the case of constant wall temperature. The fluid was assumed to be an ideal g...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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The Japan Society of Mechanical Engineers
2017-05-01
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| Series: | Journal of Thermal Science and Technology |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/jtst/12/1/12_2017jtst0010/_pdf/-char/en |
| _version_ | 1818772644950966272 |
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| author | Yutaka ASAKO Chungpyo HONG |
| author_facet | Yutaka ASAKO Chungpyo HONG |
| author_sort | Yutaka ASAKO |
| collection | DOAJ |
| description | Turbulent temperature profiles in the quasi-fully developed region of a micro-tube were obtained numerically by solving the energy equation including the substantial derivative of pressure and viscous dissipation terms for the case of constant wall temperature. The fluid was assumed to be an ideal gas with constant density over the cross-section. The turbulent velocity profile was approximated by the three-layer model of Von Kármán. The temperature profiles were compared with the laminar flow and previous numerical solutions. The total temperature was higher than the wall temperature depending on the Mach number. The static temperature in the quasi-fully developed region agrees well with the temperature results for an ideal gas flow obtained by solving the Navier-Stokes and energy equations. |
| first_indexed | 2024-12-18T10:12:38Z |
| format | Article |
| id | doaj.art-1b7d5ce0f27c46c5b78da29530cee9c5 |
| institution | Directory Open Access Journal |
| issn | 1880-5566 |
| language | English |
| last_indexed | 2024-12-18T10:12:38Z |
| publishDate | 2017-05-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Journal of Thermal Science and Technology |
| spelling | doaj.art-1b7d5ce0f27c46c5b78da29530cee9c52022-12-21T21:11:23ZengThe Japan Society of Mechanical EngineersJournal of Thermal Science and Technology1880-55662017-05-01121JTST0010JTST001010.1299/jtst.2017jtst0010jtstTurbulent temperature profile in the quasi-fully developed region of a micro-tubeYutaka ASAKO0Chungpyo HONG1Department of Mechanical Precision Engineering Malaysia-Japan International Institute of Technology University Technology MalaysiaDepartment of Mechanical Engineering, Kagoshima UniversityTurbulent temperature profiles in the quasi-fully developed region of a micro-tube were obtained numerically by solving the energy equation including the substantial derivative of pressure and viscous dissipation terms for the case of constant wall temperature. The fluid was assumed to be an ideal gas with constant density over the cross-section. The turbulent velocity profile was approximated by the three-layer model of Von Kármán. The temperature profiles were compared with the laminar flow and previous numerical solutions. The total temperature was higher than the wall temperature depending on the Mach number. The static temperature in the quasi-fully developed region agrees well with the temperature results for an ideal gas flow obtained by solving the Navier-Stokes and energy equations.https://www.jstage.jst.go.jp/article/jtst/12/1/12_2017jtst0010/_pdf/-char/entemperature profileturbulent flowquasi-developed regionenergy equationviscous dissipationsubstantial derivative of pressure |
| spellingShingle | Yutaka ASAKO Chungpyo HONG Turbulent temperature profile in the quasi-fully developed region of a micro-tube Journal of Thermal Science and Technology temperature profile turbulent flow quasi-developed region energy equation viscous dissipation substantial derivative of pressure |
| title | Turbulent temperature profile in the quasi-fully developed region of a micro-tube |
| title_full | Turbulent temperature profile in the quasi-fully developed region of a micro-tube |
| title_fullStr | Turbulent temperature profile in the quasi-fully developed region of a micro-tube |
| title_full_unstemmed | Turbulent temperature profile in the quasi-fully developed region of a micro-tube |
| title_short | Turbulent temperature profile in the quasi-fully developed region of a micro-tube |
| title_sort | turbulent temperature profile in the quasi fully developed region of a micro tube |
| topic | temperature profile turbulent flow quasi-developed region energy equation viscous dissipation substantial derivative of pressure |
| url | https://www.jstage.jst.go.jp/article/jtst/12/1/12_2017jtst0010/_pdf/-char/en |
| work_keys_str_mv | AT yutakaasako turbulenttemperatureprofileinthequasifullydevelopedregionofamicrotube AT chungpyohong turbulenttemperatureprofileinthequasifullydevelopedregionofamicrotube |