Fluid Motions in a Tank of Barge for Lithium Extraction from Seawater

概要

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A nonlinear simulation is carried out for the motion of the inviscid, incompressible fluid in a three-dimensional tank of barge for extraction of lithium from seawater that is subjected to forced oscillations. According to a conceptual design of the barge, seawater flows into the tank from suction valves on the inner bottom of the barge, and then passes through the piled granulated adsorbent and it is discharged out of the tank by drain pumps on the side hull of the barge. In order to solve the problem associated with the inhomogeneous domains of seawater and granulated adsorbent, the general boundary element method (BEM) is extended. From the numerical results obtained by the present method, the effect of forced oscillations on the fluid motion in the tank has been shown. The validity of the present method is confirmed by comparing with other publications for the special cases of the problem and the two-dimensional results. One special case is the sloshing of a two-dimensional tank studied by Nakayama et al. and the other is the fluid passing through the granulated adsorbent in a two-dimensional tank with the steady flow from the bottom studied by Nobukawa et al.. It is confirmed that the calculated results are in good agreement.
社団法人日本船舶海洋工学会の論文
2001-08-31