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Visco-elastic and surface effects in packed beds

7 Visco-elastic and surface effects in packed beds [Pg.246]

So far the flow of inelastic non-Newtonian fluids through unconsolidated beds of particles has been considered. The pore size has been substantially [Pg.246]

Visco-elastic effects may be quantified in terms of a Deborah or Weissenberg number (De). For flow in packed beds, De is simply defined as  [Pg.247]

The occmrence of very high pressure drops is well documented in the literature for a range of chemically different polymer melts and solutions [Pg.247]




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Elastic effects

Elasticity, surface

In packed beds

Packed beds

Packing effects

Surface packing

Visco-elastic

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