Back
Knowledge

Factors Affecting Viscosity

Abstract: 粘度是流体的重要特性,受多种因素影响。流体温度是关键因素,通常液体的粘度随温度升高而降低,而气体则相反,温度升高会增加其粘度。流量条件也有影响,层流中的粘度保持恒定,而在湍流中会变化。压力对气体的粘度有显著影响,增加压力通常会提高气体的粘度,而对不可压缩的液体影响较小。此外,多相流的粘度受各相体积变化的影响,悬浮颗粒的存在也会导致粘度增加。

Viscosity is an important fluid property whose importance to many different products in a variety of industries cannot be overstated. What are the factors that affect viscosity? Let's move on.

Fluid viscosity depends on many factors. like:

Fluid temperature: In general, the viscosity of a liquid decreases with increasing temperature. However, the viscosity of a gas generally increases with temperature.

Flow conditions: For laminar flow, the viscosity of the liquid remains constant; while for turbulent flow, the viscosity changes.

Pressure: When the pressure is increased, the viscosity of the gas generally increases. For liquids, since they are incompressible, pressure doesn't have much effect.

Multiphase Flow: The viscosity of a multiphase flow varies by the volume of each phase.

Suspended Particles: Suspended material causing an increase in viscosity.


 

Relevant knowledge