2014 Fiscal Year Final Research Report
Development of Super Fast Analysis Engine for Solid-gas Two-phase flow by Many Core Processors
| Project/Area Number |
23560238
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Thermal engineering
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| Research Institution | Nagasaki University |
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Principal Investigator |
|
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| Project Period (FY) |
2011-04-28 – 2015-03-31
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| Keywords | Solid-gas Two-phase Flow / Discrete Element Method / Lattice Boltzmann Model / Parallel Computing / Many Core |
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| Outline of Final Research Achievements |
The hybrid numerical model composed of Discrete Element Method (DEM) and Lattice Boltzmann Model (LBM) has been proposed and developed to analyse solid-gas two-phase flows effectively by parallel computers which are driven by many core processors. In addition, athermal LBM for immiscible liquid-gas two-phase flow with large density difference has studied and modified in order to be implemented into DEM-LBM hybrid model and extend this numerical method to the simulation of the granular or powder flows in liquid-gas two-phase flow. Though the calculation method for dispersed phase in DEM adapts to parallel computing, the computation models for continuous phase have some difficulties to fit the parallel computing because of its Eulerian characteristics. The finite difference methods for continuous phase have been replaced by a lattice Boltzmann model which adapt to parallel computing well.
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| Free Research Field |
熱工学
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