• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>AIChE Journal >New invasive image velocimetry applicable to dense multiphase flows and its application in solid-liquid suspensions
【24h】

New invasive image velocimetry applicable to dense multiphase flows and its application in solid-liquid suspensions

机译：适用于致密多相流的新的侵入式图像系列仪及其在固液悬浮液中的应用

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

An invasive image velocimetry (IIV) is developed for measurement of multiphase flows, which starts from the photographs taken by a vision probe and then determines the flow fields after a series of images processing steps. It overcomes the limitations of laser-based velocimetries, especially inapplicability to dense multiphase flows. The measurement results using IIV in the single phase stirred tank agree well with those by laser Doppler velocimetry except for the region close to impeller. The disagreement could mainly be attributed to long frame intervals so that the one-quarter rule of correlation evaluation cannot be satisfied. As it is applied in solid-liquid systems with particles loads above the upper limit of laser-based techniques without refractive matching, the direct and indirect interactions between particles and liquid are preliminarily analyzed based on instantaneous solid-liquid flows. More accurate mean velocities are obtained which provides a useful benchmark for computational fluid dynamics modeling validation in dense multiphase flow.
机译：开发了一种侵入式图像速度（IIV）以测量多相流，从视觉探针拍摄的照片开始，然后在一系列图像处理步骤之后确定流场。它克服了基于激光的速度，特别是对致密的多相流量的局限性。除了接近叶轮的区域之外，使用IIV在单相搅拌釜中使用IIV的测量结果与激光多普勒速度相加。分歧主要是归因于长帧间隔，以便不能满足关联评估的四分之一规则。由于其在具有高于激光基技术的上限的固体液体系统中施加在没有折射匹配的情况下，基于瞬时固液流程预先分析颗粒和液体之间的直接和间接相互作用。获得更准确的平均速度，其为致密多相流中的计算流体动力学建模验证提供了一种有用的基准。

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