Abstract
The extension of the Darcy law (the Forchheimer flow equation) relating second-order nonlinear pressure drop with flow velocity is studied during fast transient through air drying of sheets of porous biobased materials such as paper. A range of the paper materials with open structure consistent with tissue and towel products (basis weights 25 and 50 g/m2) made using different production processes are analyzed for the factor-specific influences with regard to changes in the fluid resistance from the removal of moisture from the material interstices. A characteristic dimension suitable for the drying process is applied from viscous and inertial momentum transport analysis.
Original language | English (US) |
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Pages (from-to) | 672-684 |
Number of pages | 13 |
Journal | Drying Technology |
Volume | 27 |
Issue number | 5 |
DOIs | |
State | Published - 2009 |
Bibliographical note
Copyright:Copyright 2009 Elsevier B.V., All rights reserved.
Keywords
- Forchheimer equation
- Inertial term
- Paper
- Through air drying
- Viscous term