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| 喷雾液滴向上飞行时间的数学推导 | |
| 引用本文： | 董建萍,蔡浩,马丽娜.喷雾液滴向上飞行时间的数学推导[J].天津农学院学报,2008,15(1):10-12. |
| 作者姓名： | 董建萍 蔡浩 马丽娜 |
| 作者单位： | 1. 天津农学院财务处,天津300384;湖北省耐火材料与高温陶瓷重点实验室,武汉科技大学财务处,武汉430081 2. 华中农业大学生命科学与技术学院,武汉,430070 3. 邢台市第三中学,河北邢台,054001 |
| 基金项目： | 湖北省教育厅青年基金 , 武汉科技大学重点资助项目 |
| 摘 要： | 料液密度影响雾滴喷射的初速度和雾滴运动速度的衰减。本文在分析料液密度对喷雾初速度影响的基础上，利用牛顿第二运动定律推导出雾滴向上飞行时间的计算公式。以相同初速度向上运动的雾滴，随着直径和密度的增加，飞行时间延长。该公式考虑了料液密度对雾滴初速度以及速度衰减的影响，故计算结果更加精确。 |
| 关 键 词： | 喷雾 雾滴 密度 飞行时间 |
| 文章编号： | 1008-5394(2008)01-0010-03 |
| 修稿时间： | 2007年7月11日 |
Mathematic Derivation for Equation of Upward Flying Time of Spray Droplets |
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| DONG Jian-ping,CAI Hao,MA Li-na.Mathematic Derivation for Equation of Upward Flying Time of Spray Droplets[J].Journal of Tianjin Agricultural College,2008,15(1):10-12. | |
| Authors: | DONG Jian-ping CAI Hao MA Li-na |
| Institution: | DONG Jian-ping, CAI Hao, MA Li-na ( 1. Department of Finance, Tianjin Agricultural University, Tianjin 300384, China. 2. The Hubei Province Key Laboratory of Refractories and Ceramics, Department of Finance, Wuhan University of Science and Technology, Wuhan 430081, China; 3. College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430081, China. 4. Xingtai Third Middl.e School, Xingtai054001, HebeiProvince, China) |
| Abstract: | The liquor density influences the muzzle velocity and the attenuation of spray droplets＇ locomotion velocity. Based on the analysis of the effect of liquor density on the muzzle velocity of spray droplets, the equation of the upward flying time of spray droplets in spray dryer was derived by Newton Second Law. The upward flying time of spray droplets with the same muzzle velocity increases with the increase of diameter or liquor density. Because the effect of liquor density on the muzzle velocity and the deceleration of droplets was taken into account in the equation, the calculation result is more accurate. |
| Keywords: | spray droplet density flying time |
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