Capsule Velocity in Pipelines

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概要

• 論文の詳細を見る

• Capsule velocity in hydraulic and pneumatic pipelines is analyzed in its equilibrium state based on a coaxial annular flow model. The capsule is cylindrical and is assumed to move coaxially, and Coulomb friction is considered when the capsule has wheels. Properties of carrier fluid are included in a nondimensional friction parameter which consists of kinematic viscosity of fluid, density ratio, Coulomb frictional coefficient, pipe diameter and gravity acceleration. Effects of length/diameter ratio, diameter ratio and friction parameter on the capsule velocity are calculated. The maximum capsule velocity is limited by the diameter ratio. Pressure and shear forces on the capsule and a pressure drop across the capsule are also discussed, and the possibility of drag reduction due to the capsule is suggested.

• 一般社団法人日本機械学会の論文
• 1992-11-15

著者

• Tomita Yuji

  Faculty Of Engineering Kyushu Institute Of Technology

• Fujiwara Yoshinari

  Faculty Of Engineering Kyushu Kyoritsu University

• Tomita Yuji

  Faculty of Engineering, Kyushu Institute of Technology

関連論文

• Charcteristics of Hydraulic Capsule Transport
• Capsule Velocity in Pipelines

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