環状噴流による鋼球の加速特性に関する研究 : 一次元流れとしての評価

概要

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This paper deals with the acceleration of a steel ball in an annular jet and the impingement on the solid wall. An experiment is carried out using a pressurized water jet from a nozzle with an inner pipe. A steel ball is introduced into the nozzle with air through the inner pipe, and then accelerated by the annular water jet. The results show that the annular water jet with air supply from the inner pipe has a similar velocity distribution along the axial direction as that of normal jet without the inner pipe, which increases the impact velocity of the steel ball against the target plate. The velocity of the steel ball calculated by the equation of motion, taking into account the Basset's force, agrees well with the experimental data.
社団法人日本機械学会の論文
1989-03-25