The viscosity of usually cited as the thickness of a fluid. You’ll think of water (low viscosity) and honey (high viscosity). At a molecular level, viscosity is a result of the interaction between the various molecules in a fluid. This can be additionally understood as friction between the molecules within the fluid.
How can we measure it?
Viscosity is measured using varied ways from do-it-yourself ways to viscometers.
The DIY technique to measure Viscosity:
You can assume in terms of different fluids taking different times to, for instance, pour out of a cup. Water can pour out of a glass in a fraction of a second and can take the form of the receiving container is barely as short of a time. On the other hand, high body fluid like honey would take minutes to pour out and also the interface between honey and air would take even as long to settle. You would possibly have noticed that I have been talking about the time once attempting to ascertain that of those 2 fluids is more viscous.
Back to the topic, otherwise to consider it’s using a piston or syringe style of setup. Imagine that you just have a very low viscosity fluid (water) within a syringe. You’ll probably push the fluid out using your fingers. On the other hand, if you have got honey inside the syringe, you better have a pretty sturdy syringe and a few mechanical systems to assist you to apply enough force. You may have additionally noticed that in this case I have been applying and measure force to make the fluid flow. If I fix the time I need to take for the injection or the injection rate and I live the force or stress, this is what we will see as a measure of dynamic viscosity.
The number of strategies and types of viscometers used to measure viscosity is rather quite massive and also the history of viscometry goes quite back. normally we are able to narrow down the choices by analyzing their base principles described above, viscosity measurements are usually distinguished as either kinematic or coefficient of viscosity, whereas relative viscosity will provide you with a general range, tools which will measure dynamic body coefficient or absolute viscosity is refined and proved to produce additional reliable and correct measurements. This can be because dynamic viscosity is given rather than values that compare fluids to one another.