Gravity mass powder flow through conical hoppers ‐ Part II: A mathematical model predicting the axial and radial profiles of normal stresses from flow velocity measurements

In Part I of this work, a semi‐empirical equation was developed to predict the radial velocity profile of gravity‐driven, free‐flowing powders in conical hoppers. Phenomenological cohesion and adhesion parameters, such as friction angles as well as hopper angle, are the independent variables of this...

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