生物多糖溶液喷射减阻实验研究

Fanzhe Meng, Liping Qin, Luo Xie, Pengfei Shi, Haibao Hu

科研成果: 期刊稿件文章同行评审

3 引用 (Scopus)

摘要

In order to obtain the underwater drag reduction performance of the biopolysaccharide solution, the drag reduction characteristics of four biopolysaccharide solutions of guar gum, xanthan gum, tragacanth gum and locust bean gum were tested in the gravity circulating water tank experimental system. The influence law of the injection rate, Reynolds number and injection mass fraction on the drag reduction is shown. The results show that the four biopolysaccharide solutions have significant spray drag reduction effects, and the locust bean gum solution has the highest drag reduction rate (14.3%). At a constant Reynolds number, with the increase of the injection rate, the drag reduction rate of each polysaccharide solution increases significantly, and shows different trends after reaching the peak value of drag reduction. The drag reduction effect of the polysaccharide solution is better when the Reynolds number is small (<2.0×104). With the increase of the Reynolds number, the drag reduction law of the polysaccharide solution shows differentiation. Excessive injection mass fraction would reduce the drag reduction effect of the polysaccharide solution, and increasing Reynolds number would cause the phenomenon of “peak shift” with the increase of the mass fraction. By introducing relative injection mass fraction, the effects of the injection rate, Reynolds number and injection mass fraction on drag reduction are coupled with each other. With the increase of relative injection mass fraction, the drag reduction rate of each polysaccharide solution increases first and then decreases. Finally, based on the injection spray mass fraction, the drag reduction law of the polysaccharide solution was explained preliminarily.

投稿的翻译标题Experimental study on drag reduction characteristics of biopolysaccharide solution
源语言繁体中文
页(从-至)56-61
页数6
期刊Shiyan Liuti Lixue/Journal of Experiments in Fluid Mechanics
37
2
DOI
出版状态已出版 - 2023

关键词

  • biopolysaccharide solution
  • drag reduction by injection
  • pipeline test
  • relative injection mass fraction

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