Understanding Viscosity

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In this video we take a look at viscosity, a key property in fluid mechanics that describes how easily a fluid will flow. But there's more too it than that!

We'll start by defining viscosity using Newton's Law of Viscosity, that describes the linear relationship between the shear stress in the fluid and the strain rate, and how it relates to the dynamic and kinematic viscosities.

We'll also explore how viscosity is dependent on temperature - the viscosity of liquids reduces with increasing temperature, but for gases temperature has the opposite effect. We can explain this by looking at what causes viscosity on the molecular level.

Another interesting aspect of viscosity that's covered in the video is non-Newtonian fluids, like shear thinning or shear thickening fluids, for which the relationship between the shear stress and the strain rate is non-linear.

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The Efficient Engineer is a channel aimed at mechanical and civil engineers. The mission is to simplify engineering concepts, one video at a time!

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Just perfect timing as i have fluid dynamics this semester!

TVjoakim
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osmanechslos
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rajvardhanshinde
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centaureacyanus
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VJ-dvub
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darshangohel
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I've studied this and passed the class with an A+, and I've just understood viscosity today

sofiansaleh
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Really outstanding. I am also a faculty of fluid mechanics.
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I salute you dear.

ManiKumar-igee
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As a person who works with non newtonial and thixotropic fluids on daily basis, a video on them will be a great follow up. Great, intuitive video as always

גיאדרי
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edukamp
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This 12:54 minutes video covers half of my fluid dynamics course. Great explanation and conceptual understanding.

User_alphagammabeta
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mibrahim
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spykey
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Excellent explanation! I wish engineering professors could have the time to make videos like this for their classes!

elsteppenwolf
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I just started my fluid mechanics class and im so happy you have a video on this subject!! Now i have a deeper understanding of viscosity.

JesusMartinez-zuxl
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This channel is about to revive my grade in my aerodynamics class

benhelm
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Perfect timing since we just started our viscosity lectures this week

ellyvatedaf
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I had a lecture about viscosity at fluid mechanics today, and this was a huge help, thanks a bunch!

ItsJustparsa
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