• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Proceedings of the ASME power conference 2009 >DESIGN OF A FREE TURBINE FOR SIMULATION OF FLOW IN A TURBINE-ANNULAR-DIFFUSER-WITH-STRUTS DELIVERY SYSTEM
【24h】

DESIGN OF A FREE TURBINE FOR SIMULATION OF FLOW IN A TURBINE-ANNULAR-DIFFUSER-WITH-STRUTS DELIVERY SYSTEM

机译：涡轮-环形-扩散器-有杆输送系统中用于模拟流动的自由涡轮机的设计

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

A tree turbine is intended to produce the effect or a rotating flow field to be fed into a strutted annular diffuser for simulating a 3D fluid mechanic interaction and effect. This turbine is driven by the flow from a flow driver fan, upstream of the turbine. As sufficient pressure is required for the diffuser air flow, the concept of maximum work generation by a turbine is bypassed in the design intent. An inlet guide vane is designed for the turbine such that the rotational speed of the turbine matches the design intended speed and also produces an axial exit flow (no swirl) at design condition, and a rotating wake for off design conditions. The consideration of using of the inlet guide vanes (rather than usual stator-nozzles) is to avoid a mismatch between the absolute angle of the flow coming from the flow driver fan and the absolute design intent flow angle requirement, to run the turbine. Also, due to the 3D flow effects, some uncertainty exists in determining the exact entry air flow angle to the guide vane; this uncertainty is provided for with a rounded leading edge to the inlet guide vanes. The above design considerations when embedded in the conventional turbine design procedure resulted in an unusual turbine design with very low blade cambers.
机译：树型涡轮机旨在产生效果或旋转流场，该效果或旋转流场将被馈送到有支撑的环形扩散器中，以模拟3D流体力学相互作用和效果。该涡轮机由涡轮机上游的流量驱动器风扇驱动。由于扩散器气流需要足够的压力，因此在设计意图中忽略了涡轮机产生最大功的概念。为涡轮机设计了进口导向叶片，以使涡轮机的转速与设计预期速度相匹配，并且在设计条件下还产生轴向出口流（无涡流），在设计条件不理想时产生旋转尾流。考虑使用进口导流叶片（而不是通常的定子喷嘴）是为了避免来自流动驱动器风扇的流动的绝对角度与运行涡轮的绝对设计意图流动角度之间的不匹配。同样，由于3D流动的影响，在确定与导向叶片的确切进气角度时存在一些不确定性。这种不确定性是通过进气导向叶片的圆形前缘提供的。当将上述设计考虑因素嵌入常规涡轮机设计程序中时，会导致叶片外倾角极低的不寻常涡轮机设计。

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