EDEM Research Spotlight- Numerical Analysis of Air Effect on the Dynamics of the FT4 Powder Rheometer
Altair Employee- RESEARCHER
- Wenguang Nan
- INSTITUTE
- University of Leeds, UK
- DEPARTMENT
- Chemical and Process Engineering
- SUPERVISOR
- Prof. Mojtaba Ghadiri
- TIMELINE
- 01/10/2015 - 01/10/2016
The FT4 powder rheometer of Freeman Technology has received a great attention for its capability to operate in the dynamic regime of shear strain rate. It measures the work of an impeller rotating and penetrating a bed of powders. For light and fine powders, the interstitial air affects the powder dynamics. We use the DEM-CFD simulation platform based on EDEM and ANSYS Fluent to simulate the influence of air drag on the dynamic behavior of the FT4 rheometer. Website: ghadiri-group.leeds.ac.uk Publications: "˜Numerical Analysis of Air Effect on the Dynamics of the FT4 Powder Rheometer', W. Nan, M. Ghadiri, and Y. Wang, PTUK Forum/IFPRI Conference. June 2016, University of Surrey, United Kingdom.
Fig. 1. The influence of air drag on the flow energy under different penetration depths 
Fig. 2. The flow pattern of particles for the case of utip=0.5 m/s and uf/umf=0.7
Fig. 3. The variation of the shear stress with the normalised shear rate for utip=0.5 m/s
EDEM is the most flexible commercial DEM software available in the market. It has a strong capability in the coupling the DEM simulations with Fluent. The built-in API and coupling interface help users to develop any type DEM-CFD simulations. Most importantly, EDEM provide a fast and high quality technical support to the users.
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