大深度エアリフトポンプにおける非定常気液二相流動の数値シミュレーション [in Japanese] A Numerical Simulation of Unsteady Two-phase Gas-Liquid Flow in a Large-scale Air-lift Pump [in Japanese]
Access this Article
Search this Article
It is anticipated that dynamical responses to changes of air supply become more complicated in a large-scale air-lift pump. Then it is inevitable to grasp unsteady flow characteristics in air-lift pumps for safety operations of the systems. Therefore the purposes of this study are to obtain safety operational conditions for air-lift pumps of lifting marine mineral resources such as manganese nodules from deep-sea floor to a mining ship. The numerical method was applied to an air-lift pump of 5,000 m depth. In this paper, we discuss especially the unsteady flow characteristics of gas-liquid two-phase flow in beginning and increasing of air supply, in increasing and reducing of back-pressure, and in stopping of air supply.
- Journal of MMIJ
Journal of MMIJ 115(6), 437-442, 1999-06
The Mining and Materials Processing Institute of Japan