Investigating the Effect of Powder Type on Improving the Flow in Pipelines | Science Publications

American Journal of Applied Sciences

Tania S. Hadi¹  Hayder A.A. Bari¹  Rosli B.M. Yunus¹ 

关键词: Drag reduction;    turbulent flow;    pumping power saving;    portable ultrasonic measurement;    Direct Numerical Simulation (DNS);    Laser Doppler Velocimetry (LDV);    Reynolds number (Re);    aqueous media;   

DOI  :  10.3844/ajassp.2010.1517.1520

学科分类：自然科学（综合）

来源: Science Publications

【 摘 要 】

Problem statement: In the present investigation, three types of powders are chosen to beinvestigated as drag reducing agent in aqueous media. The effect of powder type effect will behighlighted in the present study. Approach: Three types of powders were select to be investigating inthe present study, which are the sand, aluminum and the coal powders. The reason behind choosingthese powders precisely is the difference in its physical properties, especially the density (?_sand = 1640,?_aluminum = 2700 and ?_coal = 1170 kg m^-3). Results: All the experimental study was carried in a buildbuildup rig that consisted of a closed loop experimental piping system. Three different additionconcentrations (100, 300 and 500 ppm) and five different liquid flow rates were investigated.Conclusion: The experimental results showed that, the aluminum powder drag reduction performancewas the higher compared the other two powders investigated (sand and the coal), with maximum % Drup to 45% by the addition of only 400 ppm addition concentration."

【 授权许可】

Unknown