Li Bang-da, Liu Yong-jian, Zhang Jing-fu. Studies on the Law of Laminar Helical Flow of Power-Law Fluid in Eccentric Annuli[J]. Applied Mathematics and Mechanics, 1993, 14(7): 593-600.
 Citation: Li Bang-da, Liu Yong-jian, Zhang Jing-fu. Studies on the Law of Laminar Helical Flow of Power-Law Fluid in Eccentric Annuli[J]. Applied Mathematics and Mechanics, 1993, 14(7): 593-600.

# Studies on the Law of Laminar Helical Flow of Power-Law Fluid in Eccentric Annuli

• Publish Date: 1993-07-15
• According to the principle of fluid mechanics,the law of laminar,helical flow of power-law fluid in eccentric annuli is studied extensively in this paper.The apparent viscosity,velocities distribution of laminar helical flow of power-law fluid are discussed and calculating methods of flow rate and pressure loss are presented.The factors influencing flow are also analysed.On the basis of theoretical studies some new results of the present paper are compared with the theories of the helical flow of the power-law fluid in concentric annuli.The test verified that theoretical formulas in this article are proper and general.They can be used for calculating hydraulic parameters in drilling engineering.
•  [1] 瞿应虎、刘希圣,环形空间内幂律液体螺旋流层流流场性质的分析,华东石油学院学报,3(1985). [2] 刘永建、陈家琅,偏心环空中幂律流体轴向流压降计算,石油钻采工艺,5(1989). [3] 李邦达、刘永建,偏心环空中幂律流体层流螺旋流的流量及压降,石油钻采巨艺,5(1991).

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