Permeability Collapse in Hopper Discharge Causes “Random” Ratholes and Sudden Flooding Gallery Permeability Collapse in Hopper Discharge Causes “Random” Ratholes and Sudden Flooding Flowability, Hoppers, Insights, Permeability, Silo storage Permeability Collapse in Hopper Discharge Causes “Random” Ratholes and Sudden Flooding Permeability collapse in hopper discharge often triggers instability [...] By Stephane Sloots|2026-06-27T14:42:36+01:007 February 2026|Categories: Flowability, Hoppers, Insights, Permeability, Silo storage|Tags: aeration, compressibility, deaeration, fine powders, flooding, hopper discharge, permeability, powder flow, ratholing, venting|0 Comments Read More