單顆粒尾渦特性的大渦模擬

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單顆粒尾渦特性的大渦模擬

陳雷, 劉向軍, 徐旭常

文章導航 > 工程科學學報 > 2006 > 28(4): 380-382

陳雷, 劉向軍, 徐旭常. 單顆粒尾渦特性的大渦模擬[J]. 工程科學學報, 2006, 28(4): 380-382. doi: 10.13374/j.issn1001-053x.2006.04.017

引用本文:

陳雷, 劉向軍, 徐旭常. 單顆粒尾渦特性的大渦模擬[J]. 工程科學學報, 2006, 28(4): 380-382. doi: 10.13374/j.issn1001-053x.2006.04.017

CHEN Lei, LIU Xiangjun, XU Xuchang. Large-eddy simulation of particle wake effects[J]. Chinese Journal of Engineering, 2006, 28(4): 380-382. doi: 10.13374/j.issn1001-053x.2006.04.017

Citation:

CHEN Lei, LIU Xiangjun, XU Xuchang. Large-eddy simulation of particle wake effects[J]. Chinese Journal of Engineering, 2006, 28(4): 380-382. doi: 10.13374/j.issn1001-053x.2006.04.017

陳雷, 劉向軍, 徐旭常. 單顆粒尾渦特性的大渦模擬[J]. 工程科學學報, 2006, 28(4): 380-382. doi: 10.13374/j.issn1001-053x.2006.04.017

引用本文:

陳雷, 劉向軍, 徐旭常. 單顆粒尾渦特性的大渦模擬[J]. 工程科學學報, 2006, 28(4): 380-382. doi: 10.13374/j.issn1001-053x.2006.04.017

CHEN Lei, LIU Xiangjun, XU Xuchang. Large-eddy simulation of particle wake effects[J]. Chinese Journal of Engineering, 2006, 28(4): 380-382. doi: 10.13374/j.issn1001-053x.2006.04.017

Citation:

CHEN Lei, LIU Xiangjun, XU Xuchang. Large-eddy simulation of particle wake effects[J]. Chinese Journal of Engineering, 2006, 28(4): 380-382. doi: 10.13374/j.issn1001-053x.2006.04.017

單顆粒尾渦特性的大渦模擬

doi: 10.13374/j.issn1001-053x.2006.04.017

1. 北京科技大學機械工程學院熱能工程系, 北京 100083;
2. 清華大學熱能工程系, 北京 100084

基金項目:

國家自然科學基金項目(No.50406025)

作者簡介:
陳雷(1979-),男,碩士研究生;劉向軍(1969-),女,副教授,博士

中圖分類號: TK16
計量
- 文章訪問數: 160
- HTML全文瀏覽量: 49
- PDF下載量: 6
- 被引次數: 0
出版歷程
- 收稿日期: 2005-02-21
- 修回日期: 2005-05-09
- 網絡出版日期: 2021-08-24

Large-eddy simulation of particle wake effects

1. Department of Thermal Engineering, Mechanical Engineering School, University of Science and Technology Beijing, Beijing 100083, China;
2. Department of Thermal Engineering, Tsinghua University, Beijing 100084, China

摘要: 稠密氣固兩相流中顆粒尾渦的存在對其他顆粒的運動及兩相流場結構的影響不可忽略.本文采用大渦數值模擬的方法研究了氣體流過一個ϕ100μm顆粒的尾渦特性,對比計算了在不同顆粒雷諾數Re_p下顆粒尾渦的存在對局部氣流速度、壓力的影響.結果表明,Re_p=100時尾渦影響區域的長度達顆粒粒徑的5倍,顆粒前后最大壓差達373·48Pa.
- 稠密氣固兩相流 /
- 顆粒 /
- 尾渦 /
- 大渦模擬 /
- 數值模擬
Abstract: Particle wake has obviously effects on particle-particle interactions and two-phase flow characteristics in dense gas-particle two-phase flow. The large eddy simulation method was used to study the flow field across a ϕ100μm particle. The local streamline, velocity and pressure distribution at different Reynolds numbers Re_p were calculated. The results reveal that at Re_p = 100 the length of particle wake region is about 5 times the particle diameter and the corresponding maximum pressure difference is 373.48 Pa.
- dense gas-particle two-phase flow /
- particle /
- wake /
- large eddy simulation /
- numerical simulation

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