1) reduce drag force manage
减阻处理
2) mechanism of drag reduction
减阻机理
1.
A comprehensive review is given to the developments during the last ten years in research on mechanism of drag reduction of dilute polymer solutions in the paper.
本文对十几年来高分子稀溶液减阻机理的研究情况从实验与理论两方面进行了综述,并着重分析了溶液中大分子的动力形态及拉伸粘度等问题。
3) Drag Reduction Mechanism
减阻机理
1.
Effect of Polymer Additives in Taylor - Couette Flow and Drag Reduction Mechanism;
聚合物添加剂对Taylor-Couette流的影响及减阻机理
2.
And then the research actualities of riblet surface drag reduction technology,microbubble drag reduction technology and hydrophobic/superhydrophobic surface drag reduction technology are expounded through experimental and theoretical researches with drag reduction mechanisms purposively emphasized.
分别从实验研究和理论研究两方面对其进行了阐述,并着重强调了各自的减阻机理。
4) vibration absorbing
减振处理
1.
By means of inspecting vibration and collecting data of 4RDS reciprocating compressor unit on site,the vibrating cause were analyzed,the vibration absorbing scheme was formulated and adopted.
通过对4RDS型压缩机组进行现场振动监测和数据采集,分析了振动原因,制定出减振处理方案并采取了有效的减振措施。
5) hypobaric treatment
减压处理
1.
The effects of hypobaric treatment on physiological activities and biochemical attributes of Chuanzhihong apricot fruits stored at(0±0.
以串枝红杏为试材,研究了减压处理对高湿、(0±0。
6) Bacteria-reducing
减菌处理
1.
Blanching and ozone treatments to Chilli was studied in the experiment,Further studied changes of total acid,pH value,Vc,capsicum red pigment,nitrite content and sensory quality on fermentation process to Bacteria-reducing and Beating in Inoculated Fermentation,Bacteria-reducing and Cutting-fragments in Inoculated Fermentation,Beating in Natural fermentation.
结果表明,原料减菌处理以0。
补充资料：高分子减阻剂
| 高分子减阻剂 polymeric drag-reduction additives 具有减小流体流动阻力作用的高分子。在流体输送过程中加入此类高分子，能减少转展阻力，降低能耗。水相输送减阻剂研究开发较早，已研究了大量的水溶性高分子减阻剂，使用量仅几个ppm就可降低50％以上的阻力，有时高达80％。高分子减阻剂的结构及性质是：高分子具有无支链结构，分子量高，溶解性好等。聚环氧乙烷、聚丙烯酰胺是良好的水相减阻剂。油相减阻剂具有重要的实际意义，原油多以管道输送。由于粘度大、摩擦力高，输送中消耗也高，已应用的油相减阻剂有聚异丁烯、氢化聚异戊二烯、无规聚丙烯、丁二烯及苯乙烯的嵌段共聚物、乙烯与乙烯基酯的共聚物聚丙烯酰胺、乙烯和丙烯的共聚物等。如氢化聚异戊二烯，一般用量2～20ppm，即可使流速增加，摩擦损耗降低27％到50％。高分子减阻剂已广泛用于灌溉、泄洪、消防、原油输送等方面。其缺点是价格贵、易降解等。 |
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条