Definition of Angle of Repose

The angle of the repose has been utilized in many branches of science to show the solids flow properties. The angle of the repose is a characteristic that is related to inter particulate resistance or friction to the movement among the particles. The angle of repose test results is very dependent on the method used. As a result of the segregation of material and consolidation, experimental difficulties arise or Powder's aeration formed as a cone.

The formula for Angle of Repose.

The angle of repose is specified by θ.      

It is expressed as, Tan θ = µ = h/r.

Where,

h is the height,

r= radius of the pile

and µ is the coefficient of friction.

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