| 练继建,刘 昉,黄财元.环境风和地形因素在挑流泄洪雾化数学模型中的影响[J].水利学报,2005,36(10):1147-1152 |
| 环境风和地形因素在挑流泄洪雾化数学模型中的影响 |
| Numerical study on effects of environmental wind and terrain on spray caused by jet from flip bucket |
| |
| DOI： |
| 中文关键词: 雾化 蒙特卡罗方法 数学模型 环境风 地形 |
| 英文关键词: spray Monte-Carlo method mathematical model effect environmental wind terrain |
| 基金项目: |
|
| 摘要点击次数: 2566 |
| 全文下载次数: 171 |
| 中文摘要: |
| 挑流泄洪雾化是一种复杂的水-气二相流，影响其降雨强度和雾化范围的因素众多。其中，环境风和地形因素被认为是在数值计算中难以考虑的因素。本文应用蒙特卡罗方法将环境风和地形因素的影响添加到挑流泄洪雾化数学模型中，在单独考虑环境风和地形因素的影响下，分别计算出4种典型工况条件下的雾化范围和降雨强度分布规律，以及雾化范围纵向和横向最远点的平面坐标。结果表明，在考虑环境风和地形因素的影响条件下，挑流泄洪雾化数学模型的计算结果同原型观测资料变化规律相一致。 |
| 英文摘要: |
| The Monte-Carlo method is applied to introduce the effect of environmental wind and terrain into the mathematical model describing the spray caused by jet from flip bucket. The ranges of spray and the distributions of rainfall intensity under 4 conditions of environmental wind and 4 types of terrain in a typical hydro project are calculated. It is found that both the environmental wind and shape of valley will remarkably affect the range of spray and rainfall distribution. The validity of the calculation method is verified by the prototype observation data obtained from Ertan Hydro Project, Sichuan Province. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |