| 测量粘滞系数的修正公式 |
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| 引用本文： | 李森林,杜宽仪,霍青保.测量粘滞系数的修正公式[J].西北师范大学学报,1990(1). |
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| 作者姓名： | 李森林 杜宽仪 霍青保 |
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| 作者单位： | 宁夏教育学院，西北师范大学物理系，西北师范大学物理系 |
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| 摘 要： | 斯托克斯公式是在无限介质中且雷诺数 R_e<1的条件下成立的.而用落球法测液体的粘滞系数时,必须考虑边界和 R_e 对粘滞系数的影响.本文用曲线拟合的方法进行了修正,比其它文献简捷、精确.
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| 关 键 词： | 粘滞系数 斯托克斯公式 落球法 修正公式 |
A Modified Formula for Measuring Liquid Viscosity |
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| Li Sengling.A Modified Formula for Measuring Liquid Viscosity[J].Journal of Northwest Normal University Natural Science (Bimonthly),1990(1). |
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| Authors: | Li Sengling |
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| Institution: | Li Sengling (Ningxia Teachers College)Du Kuanyi Huo Qingbao (Department of Physics) |
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| Abstract: | The Stokes'law is established in an infinite fluid and values of the Reynolds number below 1.The influence of boundary condition and Reynolds number must be considered when we measure liquid viscosity by falling sphere method. In this paper,a modified formula is obtained by fitting data method.This method is simpler than others,and the result is more satisfying. |
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