CAJ | 학술논문

本文通过可视化方法对竖直与倾斜条件下矩形通道内弹状流单元的参数进行研究，尝试给出摇摆状态下矩形通道内弹状流压力模型。通过图像处理给出气弹段空泡份额以及两相速度的计算关系式，并验证漂移流模型在液弹段的适用性，给出弹状流单元的长度份额以及空泡份额的计算关系式。根据实验结果给出摇摆条件下矩形通道内弹状流压力组分的模型，并重点分析摩擦压降模型的适用程度。结果表明，弹状流压力模型可很好地预测摇摆条件下矩形通道内的压力。
본문통과가시화방법대수직여경사조건하구형통도내탄상류단원적삼수진행연구，상시급출요파상태하구형통도내탄상류압력모형。통과도상처리급출기탄단공포빈액이급량상속도적계산관계식，병험증표이류모형재액탄단적괄용성，급출탄상류단원적장도빈액이급공포빈액적계산관계식。근거실험결과급출요파조건하구형통도내탄상류압력조분적모형，병중점분석마찰압강모형적괄용정도。결과표명，탄상류압력모형가흔호지예측요파조건하구형통도내적압력。
The visualization method was used to investigate the parameters of slug flow unit in rectangular channel (40 mm × 3 mm ) under vertical and inclined conditions , aiming at establishing the pressure model of slug flow in rectangular channel in rolling motion .The calculation correlations for void fraction and two‐phase velocity for gas slug segment were acquired ,and the applicability of drift flux model was confirmed for liquid slug segment .The length fraction and void fraction of slug flow unit were calculated . According to the experiment results ,the pressure model of slug flow model was estab‐lished ,and the predicted frictional pressure drop turned out to be in a good agreement with the experiment value .