论文标题
预测从选择性退出到两个流体分层系统中的夹带的过渡
Predicting transition from selective withdrawal to entrainment in two fluid stratified systems
论文作者
论文摘要
选择性戒断是从美国战略石油储备中转移石油的所需现象，因为在撤离期间夹带石油会伴随着污染环境的风险。为了在临界流量下预测关键的浸没深度，进行了高雷诺数的选择性撤回实验。将管子通过液体液体界面放置，该液体液体界面将下部液体向上绘制。对界面上正常应力平衡的分析产生了韦伯数，利用动态压力缩放，预测了夹带的过渡。使用Bernoulli的原理进行无粘性流量分析，假设ISO-Velocity曲线的椭圆形控制体积表面在Weber数字和缩放的临界淹没深度之间产生了线性关系。使用实验数据验证了分析模型，从而导致了一个可靠的模型，以预测从选择性撤回到夹带的过渡。
Selective withdrawal is a desired phenomenon in transferring oil from large caverns in US Strategic petroleum reserve, because entrainment of oil at the time during withdrawal poses a risk of contaminating the environment. In order to predict a critical submergence depth at a critical flow rate, a selective withdrawal experiment at a high Reynolds Number was conducted. A tube was positioned through a liquid-liquid interface that draws the lower liquid upwards. Analysis of the normal stress balance across the interface produced a Weber number, utilizing dynamic pressure scaling, that predicted the transition to entrainment. An inviscid flow analysis, using Bernoulli's principle, assuming an ellipsoidal control volume surface for the iso-velocity profile produced a linear relationship between the Weber number and the scaled critical submergence depth. The analytical model was validated using the experimental data resulting in a robust model for predicting transition from selective withdrawal to entrainment.
