• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Symposium on Sedimentation and Sediment Transport; Sep 2-6, 2002; Monte Verita, Switzerland >INTERACTION BETWEEN TURBULENT OPEN-CHANNEL FLOW AND PRESSURE FLUCTUATIONS IN SUBSURFACE GRAVEL LAYER
【24h】

INTERACTION BETWEEN TURBULENT OPEN-CHANNEL FLOW AND PRESSURE FLUCTUATIONS IN SUBSURFACE GRAVEL LAYER

机译：地下砾石层中湍流开孔流与压力波动的相互作用

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The variation of the thickness of the gravel bed with and without hydraulic contact to the sand layer below will be studied in the forthcoming experiments. Therein an improved measurement equipment (high resolution dynamic pressure gauge and endoscopic setup) and improved flume conditions (upstream shift of the inlet, increased flow rate) will be employed. In addition to these experiments an immobile porous channel bed will be investigated by numerical simulation. Therefore, the flow field both above and within the gravel layer will be calculated by numerical large-eddy simulations (LES) with temporary and spatial highly resolved Cartesian grids. In this manner a detailed analysis of eddy structures and instantaneous forces on grains may be given. In a follow-on project it is proposed to calculate the lift-up of single grains.
机译：在即将进行的实验中，将研究砾石层厚度的变化（有无水力接触下面的沙层）。其中将使用改进的测量设备（高分辨率动态压力计和内窥镜设置）和改进的水槽条件（入口的上游移位，增加的流速）。除这些实验外，还将通过数值模拟研究固定的多孔通道床。因此，砾石层之上和之内的流场将通过具有临时和空间高度解析笛卡尔网格的数值大涡模拟（LES）来计算。以这种方式，可以对涡结构和作用在晶粒上的瞬时力进行详细分析。在后续项目中，建议计算单粒的提升量。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号