The formulas to amend the Colburn factor j and friction factor f of plain fins were advanced. The results show that the effects of variable viscosity on surface performance of plain fins are more significant than those of serrated fins.
结果表明,由于液体黏度变化的影响,不同换热温差下翅片的表面性能不同,且平直翅片所受影响比锯齿翅片大得多。
参考来源 - 液体黏度变化对翅片表面性能影响的数值研究·2,447,543篇论文数据，部分数据来源于NoteExpress
要有适当的黏度，并且在系统温度变化时，油的黏度变化要小。
Must have the suitable viscosity, and in system temperature change time, the oil viscosity change must be small.
治疗组血小板计数、凝血酶原时间及血浆黏度变化与对照组相似（P>0.05）。
There was no significant difference in platelet count, plasma prothrombin time and plasma viscosity between treatment group and control group ( P > 0.05) .
以大豆油为原料，根据热聚合反应过程中黏度的变化确定反应的速率常数及热聚合反应的活化能。
The reaction rate constant and activation energy of soybean oil thermal polymerization reaction were determined by analysis of the change of viscosity.
应用推荐