2024-03-29T14:30:34Z
https://niigata-u.repo.nii.ac.jp/oai
oai:niigata-u.repo.nii.ac.jp:00003723
2022-12-15T03:36:49Z
423:424:425
453:454
希薄高分子溶液の円管内流れにおける摩擦損失と圧力変動特性
希薄高分子溶液の円管内流れにおける摩擦損失と圧力変動特性
Drag Reduction and Pressure Fluctuation of Dilute Polymer Solutions in Pipe Flow
方, 義
長谷川, 富市
渡辺, 博
鳴海, 敬倫
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
Non-Newtonian Fluid
Pipe Flow
Turbulent Flow
Drag Reduction
Pressure Fluctuation
Power Spectrum
Measurement of drag reduction and frequency analysis of the wall pressure fluctuation in pipe flow are carried out using dilute polymer solutions and aqueous detergent solutions in order to discuss the correlation between drag reduction and pressure fluctuation. Frequency analysis indicates that the power spectrum density of the pressure fluctuation of dilute polymer solutions is greater in the low-frequency region and less above 30[Hz] than that of water (solvent). Moreover, the level of pressure fluctuation in dilute polymer solutions is on the whole greater than that in water.
日本機械学会
1996-06
jpn
journal article
http://hdl.handle.net/10191/5749
https://niigata-u.repo.nii.ac.jp/records/3723
http://ci.nii.ac.jp/naid/110002394913
AN00187441
03875016
日本機械学会論文集. B編
日本機械学会論文集. B編
62
598
2151
2155
https://niigata-u.repo.nii.ac.jp/record/3723/files/9_0047.pdf
application/pdf
360.9 kB
2019-07-30