Knowledge Resource Center for Ecological Environment in Arid Area
| 项目编号 | 11362010 |
| 风沙流中湍流与沙粒运动的相互影响研究 | |
| 马高生 | |
| 主持机构 | 兰州理工大学 |
| 开始日期 | 2014 |
| 结束日期 | 2017 |
| 资助经费 | 450000(CNY) |
| 项目类别 | 地区科学基金项目 |
| 资助机构 | CN-NSFC（国家自然科学基金） |
| 语种 | 中文 |
| 国家 | 中国 |
| 英文简介 | This project is aimed at the three-dimensional wind-blown sand ---streamers in serious desertification of land in the Northwest of China. Its structure and the influence factor is uncertain and the interaction of turbulence and sand movement is unknown and worthy of discussion. Through this project will be improved of the two aspects of numerical simulation and field measurement in order to realize above research contents. Numerical simulation: one - and two-dimensional methods of wind-sand flow is not suitable for the study of streamers problems and it relates to the large amount of calculation, the lack of 3D splash function of the particle-bed collision, so the results are less and less pervasive. This project propose new approach: independent deal with the sand particles of bed and of air to solve the large amount of calculation and the lack of three-dimensional splash function problem. Field measurements: increased arranging the transport intensity equipment to measure the three-dimensional structure of streamers along wind and using 3-D Sonic Anemometer measurement is higher and more accurate wind field to explore the interaction of near-surface atmospheric coherent structure and streamers. |
| 中文关键词 | 湍流 ; 风沙流 ; 耦合 ; 气固两相流 ; streamers |
| 来源机构 | 兰州理工大学 |
| 资源类型 | 项目 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/344300 |
| 推荐引用方式 GB/T 7714 | 马高生.风沙流中湍流与沙粒运动的相互影响研究.2014. |
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