Trajectory Length Distribution (TLD), a novel concept to characterize mixing in flow systems
✍ Scribed by J. Villermaux
- Book ID
- 103008992
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 474 KB
- Volume
- 51
- Category
- Article
- ISSN
- 0009-2509
No coin nor oath required. For personal study only.
✦ Synopsis
A novel function is introduced to characterize mixing in flow systems, the Trajectory Length Distribution (TLD) representing the distribution of distances covered by fluid elements (or particles) in the system. This allows to define a macromixing index comparing the mean trajectory length to a characteristic dinaension of the vessel. As an illustration, prelirainary results are presented, showing Return Length Distributions to given surfaces in a stirred vessel, obtained by particle tracking using video cameras. Theoretical expressions of TLDs in various ideal reactors --recycle loop, axially dispersed plug flow, Zwietering's reactor, cascade of reactors in series --are derived, showing the potential interest of the TLD concept.