| Autor: |
Alshahed, Osamh S., Kaur, Baldeep, Bradley, Michael S. A. |
| Předmět: |
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| Zdroj: |
EA National Conference Publications; 2023, p455-463, 9p |
| Abstrakt: |
Chaotic invariant measures have been used to characterise the instabilities of fully developed gassolid flow patterns in horizontal pneumatic conveying of plastic pellets. These measures were applied to phase spaces (attractors) reconstructed from bottom arc-shaped electrostatic signals to characterise the behaviour of flow patterns: stratified flow, pulsating flow, moving dunes and blowing dunes. The flow patterns were identified using high-speed video imaging sight section of a pipeline and classified at several operating conditions in a flow pattern map and state diagram. It is found that optimal operating conditions at the minimum conveying air velocity in the state diagram are between moving dunes and blowing dunes. Chaotic features of electrostatic phase spaces are characterised using statistical measures capable of staying invariant at specific operating conditions, including Lyapunov exponent, approximate entropy and correlation dimension. The correlation between the chaotic invariant measures with the operating conditions is analysed through state diagrams, indicating that the fluctuations of electrostatic signals can classify the flow patterns at different solid mass flow rates. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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