Set up was a momentum analysis model of the drift velocity in stagnant liquid of long bubbles in an annulartube.
建立圆管内滞止液体中长气泡漂移速度动量分析模型。
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The flow over a backward facing step of an annulartube is a very important part of air drilling, determining the detritus going back to the ground successfully.
Through a theoretical analysis a study has been carried out concerning the evaporation heat exchange characteristics of water-air annular two-phase flows in a vertical slender tube.