Viscosity constant of a cylinder

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SUMMARY

The viscosity constant for a cylinder, specifically an empty barrel rolling on a horizontal plane, is represented by the formula c = 1.76h·r, where h is the height of the barrel and r is its radius. The value 1.76 is a coefficient derived from empirical observations related to air friction. This discussion seeks clarification on the derivation of this formula and the existence of tables that provide viscosity constants for cylindrical objects.

PREREQUISITES
  • Understanding of fluid dynamics principles
  • Familiarity with the concept of viscosity
  • Basic knowledge of cylindrical geometry
  • Experience with empirical data analysis
NEXT STEPS
  • Research the derivation of viscosity constants for cylindrical shapes
  • Explore empirical studies on air friction and rolling objects
  • Learn about fluid dynamics equations relevant to cylindrical motion
  • Investigate tables and resources for viscosity constants in various materials
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Students studying physics, particularly those focusing on fluid dynamics, mechanical engineers, and anyone interested in the mechanics of rolling objects and viscosity constants.

rayman123
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Homework Statement


Does something like a viscosity constant of a cylinder exist? We are talking about an empty barrel rolling on a horisontal plane and the air friction.
On the classes we got something like this
c= 1.76h\cdot r where h is the barrel's height and r is the radius. How to find that formula? are there any tables for this? where did they get 1.76 from?

Thanks



Homework Equations





The Attempt at a Solution



 
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Does anyone know what c stands for in this post?
 

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