Investigation into the rheological characteristics of aerated Flyash powder

Chen, Wei; Williams, Kenneth C.; Jones, Mark G.; Bunn, Thomas F.

Title: Investigation into the rheological characteristics of aerated Flyash powder
Creator: Chen, Wei; Williams, Kenneth C.; Jones, Mark G.; Bunn, Thomas F.
Relation: 11th International Conference on Bulk Materials Handling Storage, Handling and Transportation (ICBMH 2013). Proceedings of the 11th International Conference on Bulk Materials Handling Storage, Handling and Transportation (Newcastle, N.S.W. 2-4 July, 2014)
Publisher: University of Newcastle
Resource Type: conference paper
Date: 2013
Description: Although numerous studies have been conducted to obtain rheological behaviour of the aerated granular material, the rheology of fine powder materials (10 µm50< 100 µm) remain poorly understood. To improve the understanding of aerated fine powder rheological behaviours, this research has focussed on experimentally determining rheological properties using a modified rotary viscometer. The modified device comprises a fluidisation vessel and a common rotary viscometer (based on circular Couette flow). Flyash powder was selected as testing material. Experimental results indicate that the aerated Flyash can be characterised as a Yield Power-law fluid or a Power-law fluid, depending on the aeration level. Consequently, this research provides a significant increase in the understanding of rheological behaviours within fine air-powder mixtures.
Subject: rheology; fine powder; aeration and rotary viscometer
Identifier: http://hdl.handle.net/1959.13/1342673
Identifier: uon:29009
Identifier: ISBN:9780858259836
Language: eng
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