Accession Number:

AD1064515

Title:

Thermo-Mechanical Modelling of Granular Materials With Non-spherical Particle Shape

Descriptive Note:

Technical Report,20 Dec 2016,19 Dec 2017

Corporate Author:

COMMONWEALTH SCIENTIFIC AND INUSTRIAL RESEARCH ORGANISATION CABERRA Australia

Personal Author(s):

• Cummins, Sharen

Report Date:

2018-06-28

Pagination or Media Count:

12.0

Abstract:

In this grant a new capability to model heat transfer through granular materials with non-spherical shape has been developed. This has involved creating a new body-fitted grid solver designed to simulate intra-particle heat conduction through super-quadric SQ particles, coupling this new solver to a traditional Discrete Element Method DEM solver which simulates inter-particle collisions and implementing these coupled solvers on a hybrid CPUGPU architecture for maximum computational efficiency. A 14-fold speed-up was noted in using the hybrid CPUGPU architecture versus running purely on the CPU. This suggests that the use of hybrid CPUGPU architectures is promising for the simulation of intra-body heat transfer in granular materials with non-spherical shape. Future work will involve applying this capability to study heat conduction in more realistic granular materials which will have impact in a variety of applications ranging from multi-phase reactors, catalytic processes and explosives.

Descriptors:

• heat transfer
• specific heat
• temperature gradients
• heat energy
• granular materials
• heat transmission
• heat capacity

Subject Categories:

• Miscellaneous Materials
• Thermodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE