Loss and Discharge Characteristics of a Flow of Polymer Solutions through Pipe Orifices

スポンサーリンク

概要

• 論文の詳細を見る

• Loss and discharge characteristics and pressure distributions of a flow of polymer solutions through pipe orifices have been investigated experimentally. Three β ratios have been studied, and the measurements have covered both laminar and turbulent regions. The results have revealed how the differences in those characteristics between polymer solutions and water depend on β ratios and Reynolds numbers. In particular, it has been shown that the loss induced by orifices in turbulent region is reduced in polymer solutions compared to that in water. It has also been shown that the ratio of pressure loss to meter pressure differential is almost independent of fluids for high Reynolds numbers. Furthermore, some suggestions have been made on the position of the vena contracta, the coefficient of contraction, the relation to the Toms phenomenon and the loss upstream of the vena contracta.

• 一般社団法人日本機械学会の論文

著者

• SHIMA Nobuyuki

  Department of Material Science, Faculty of Science Himeji Institute of Technology

• Shima Nobuyuki

  Department Of Mechanica Engineering Faculty Of Science And Technology Sophia University

関連論文

• Numerical Simulation of the Single Electron Tunneling Processes in the Scanning Tunneling Spectroscopy through Metal Fine Particle
• Theory of Electronic Processes of Scanning Tunneling Microscopy
• Loss and Discharge Characteristics of a Flow of Polymer Solutions through Pipe Orifices
• Applicability of elliptic-relaxation method to free-surface turbulence
• Investigation for the One-Eaquation-Type Subgrid Model with Eddy-Viscosity Expression Including the Shear-Damping Effect
• Prediction of Wall-Bounded Turbulent Flows with Blowing and Suction : Testing of a Second-Moment Closure without Wall-Reflection Redistribution Terms

スポンサーリンク