CAJ | 학술논문

文章研究了温度对不同直径的气泡在水中运动的影响，计算了不同流态、不同形状的气泡在不同温度中上升的最终速度，并进行了气泡上升速度对温度的敏感性分析。通过实验验证了气泡在静水中运动规律，给出了测量流速的气泡发生器装置图以及气泡发生器产生的适宜的气流和出气针头。测定了不同直径下气泡上升的最终速度并与理论值进行了比较，结果表明：在4mm以下和理论分析结果比较吻合，建议实际测量时气泡直径最好控制在4mm以下。
문장연구료온도대불동직경적기포재수중운동적영향，계산료불동류태、불동형상적기포재불동온도중상승적최종속도，병진행료기포상승속도대온도적민감성분석。통과실험험증료기포재정수중운동규률，급출료측량류속적기포발생기장치도이급기포발생기산생적괄의적기류화출기침두。측정료불동직경하기포상승적최종속도병여이론치진행료비교，결과표명：재4mm이하화이론분석결과비교문합，건의실제측량시기포직경최호공제재4mm이하。
This paper studies the impact of temperature on different diameter bubbles movement in water, cal- culates the final velocity of the bubbles of the different flow pattern and different shapes under different tem- peratures, and analyses the sensitivity of the bubbles rising speed with the temperatures. The Experiments had verified the law of the bubbles movement in the still water, and provides the bubble generator device diagram for measuring the flow rate and the appropriate air flow and outlet needles produced by the bubble generator. The final velocity of bubble rising in different diameters were measured and compared with the theoretical val-ue; the results show that the bubble diameters under 4mm match the theoretical analysis results, it is recom- mended that the actual measurement should control bubble diameters under 4ram.