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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2014.10
- 수록면
- 13 - 16 (4page)
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초록· 키워드
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We developed a direct numerical simulation (DNS) method of solid-fluid two-phase flows to study the effects of heat conductivity within a solid particle and the particle motion on the heat transfer. To deal with the interaction between fluid and particles, our immersed solid approach on a rectangular grid system was improved. For particle-particle interaction, a discrete element model with soft-sphere collision was applied. The local heat flux at the fluid-solid interface was discretized considering the configuration of boundaries. As a result, we constructed an efficient simulation method to track a lot of particles having wide range of heat conductivity. The method was applied to 2-D and 3-D particle-laden convection flows including multiple particles. Heat transfer and particle behaviors were studied for different ratios of heat conductivity (solid to liquid) and solid volume fractions. The simulation results highlight the effect of temperature distributions within the particles, and the difference in time scales of heat transfer through the different materials plays an important role for the motion of the particulate flow.
목차
Abstract
1. Introduction
2. Outline of computation
3. Results and Discussions
4. Conclusions
5. References
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