| 项目编号: | 1653389
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| 项目名称: | CAREER: Multiscale experimental framework on dynamics of deformable particles in turbulent dispersed multiphase flow |
| 作者: | Rui Ni
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| 承担单位: | Pennsylvania State Univ University Park
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| 批准年: | 2017
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| 开始日期: | 2017-03-01
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| 结束日期: | 2022-02-28
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| 资助金额: | 500000
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| 资助来源: | US-NSF
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| 项目类别: | Standard Grant
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| 国家: | US
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| 语种: | 英语
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| 特色学科分类: | Engineering - Chemical, Bioengineering, Environmental, and Transport Systems
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| 英文关键词: | deformable particle
; multiscale experimental framework
; spherical particle
; interface dynamics
; turbulent flow
; lagrangian framework
; multiphase flow
; unique dynamics
; turbulent multiphase flow
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| 英文摘要: | From rain droplets in clouds to gas bubbles in bioreactors and nuclear reactors, multiphase flows occurring in nature and industrial applications are often turbulent, spanning a wide range of length and time scales and posing significant challenges to numerical and experimental methods. Significant progress has been made in characterizing the turbulent multiphase flow dispersed with spherical particles; much less is known, however, about another large category with dispersed phase consisting of deformable liquid drops or gas bubbles. Those particles can freely deform, tumble, break up and coalesce in turbulent flow, adding new degrees of freedom to an already complex problem.
The key questions arise as to what are the statistics of unique dynamics of these deformable particles and how to characterize their complex couplings with the carrier phase. In order to address those questions and gain insights in the full physical picture of the dynamics of deformable particles, the project involves a multiscale experimental framework on several different length scales from interface dynamics to large-scale statistics. In order to obtain couplings of two phases, both the carrier phase and the dispersed phases will be tracked in the Lagrangian framework simultaneously. This enables us to measure, not only the velocity of both phases, but also those high-order derivatives, including acceleration and velocity gradient tensor, that are more important to the momentum couplings between two phases. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/90454
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| Appears in Collections: | 全球变化的国际研究计划
科学计划与规划
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| Recommended Citation: | |
Rui Ni. CAREER: Multiscale experimental framework on dynamics of deformable particles in turbulent dispersed multiphase flow. 2017-01-01.
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