2024-03-28T20:26:21Z
https://niigata-u.repo.nii.ac.jp/oai
oai:niigata-u.repo.nii.ac.jp:00003742
2022-12-15T03:36:49Z
423:424:425
453:454
同心円筒間の乱流テーラー渦流れに関する研究(k-εモデルによる予測)
同心円筒間の乱流テーラー渦流れに関する研究(k-εモデルによる予測)
An Analytical Study on the Turbulent Taylor Vortex Flow between Concentric Cylinders : Prediction of the Flow Field by using the κ-ε Model
小林, 睦夫
前川, 博
高橋, 武雄
吉川, 実
日本機械学会
本文データは学会の許諾に基づくCiNiiからの複製である
Taylor Vortex
Concentric Cylinders
Turbulent Flow
Secondary Flow
Turbulent Model
Calculation
The flow accompanied with turbulent Taylor vortices between inner-rotating and outer-stationary cylinders is analytically treated by using two kinds of κ-ε models. The results obtained with both models are generally in good agreement with the existing experimental results. No marked tendency for the secondary flow to disappear with increasing rotating speed is found within the range of the calculation. For a fixed value of Reynolds number, there exists a certain radius ratio which makes the intensity of the vortex maximum. The more this intensity decreases, the more the turbulence energy increases. As the radius ratio approaches unity, the intensity of the vortex decreases monotonously. Conversely, the intensity of the circumferential component of the secondary flow continues to increase until a radius ratio very close to unity. The hypothesis that the vortex determines its shape so that the total amount of the dissipation rate becomes maximum is substantially consistent with the experimental evidence.
日本機械学会
1990-09
jpn
journal article
http://hdl.handle.net/10191/5731
https://niigata-u.repo.nii.ac.jp/records/3742
http://ci.nii.ac.jp/naid/110002389185
AN00187441
03875016
日本機械学会論文集. B編
日本機械学会論文集. B編
56
529
2576
2581
https://niigata-u.repo.nii.ac.jp/record/3742/files/9_0029.pdf
application/pdf
432.5 kB
2019-07-30