- Title
- Individual slugs in a pneumatic conveyor of multiple slugs are likely unstable
- Creator
- Orozovic, O.; Rajabnia, H.; Lavrinec, A.; Meylan, M. H.; Williams, K.; Jones, M. G.; Klinzing, G. E.
- Relation
- ARC.DP190103221 http://purl.org/au-research/grants/arc/DP190103221
- Relation
- Chemical Engineering Science Vol. 250, no. 117365
- Publisher Link
- http://dx.doi.org/10.1016/j.ces.2021.117365
- Publisher
- Elsevier
- Resource Type
- journal article
- Date
- 2022
- Description
- The complex dynamics of slug flow generally result in steady-state simplifications regarding both measurements and modelling. Consequently, little is known about the transient nature of individual slugs and their interactions in systems of multiple slugs. Using gas conservation, this paper theoretically investigates the stability of individual slugs in a system of multiple slugs. For a simplified case of multiple slugs of identical velocities, a proof by contradiction shows that it is impossible for such a system to be stable. For general cases, which contain more unknowns than equations, a combined qualitative and quantitative approach is undertaken. For the case of two general slugs, the approach strongly suggests the impossibility of individually stable slugs. For the most complicated general case of n slugs, the approach also indicates that individually stable slugs are unlikely. These findings significantly impact existing modelling and measurement methods that assume individually stable slugs.
- Subject
- pneumatic conveying; dense phase; slug flow; plug flow; steady; stable
- Identifier
- http://hdl.handle.net/1959.13/1464572
- Identifier
- uon:47040
- Identifier
- ISSN:0009-2509
- Language
- eng
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