ID | 15510 |
JaLCDOI | |
Sort Key | 5
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フルテキストURL | |
著者 |
Nsunge Felix Chintu
Graduate School of Natural Science and Technology
浜本 嘉輔
Dept. of Mechanical Engineering
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抄録 | Velocity distributions and related parameters of transient and steady, turbulent air jets issuing under atmospheric conditions at Mach 0.14, 0.33 and 0.5 have been predicted using Navier-Stokes(N-S) equations for compressible flow and incompressible flow independently with the k-ε model. The closeness and consistence of the results predicted by the N-S equations for compressible and incompressible flows as well as with relevant measurement or similar prediction show that the incompressible flow assumption for at least some subsonic gas jets issuing at velocities higher than Mach 0.3, the general limit for incompressible fluid flow, can be reasonably accurate particularly in the main fully developed flow region. This suggests that the divergence term in source terms of the momentum, turbulence energy and its dissipation rate equations have negligible effects for some seemingly compressible high speed, subsonic free gas jets. The computation time is reduced by at least 18 % when incompressible flow assumption is used.
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出版物タイトル |
Memoirs of the Faculty of Engineering, Okayama University
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発行日 | 1991-03-28
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巻 | 25巻
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号 | 2号
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出版者 | Faculty of Engineering, Okayama University
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出版者(別表記) | 岡山大学工学部
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開始ページ | 39
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終了ページ | 54
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ISSN | 0475-0071
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NCID | AA10699856
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資料タイプ |
紀要論文
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OAI-PMH Set |
岡山大学
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言語 |
英語
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論文のバージョン | publisher
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査読 |
無し
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NAID | |
Eprints Journal Name | mfe
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