Numerical and Experimental Investigation on Centrifugal Fan with a VortexBroken Device

摘要：

The flow field of the G4-73 centrifugal fan was numerically simulated with the software of Fluent. The numerical results show that large-scale vortex in volute were push forward, and the scale and intensity of vortex change in different circumferential cross section of the volute. A vortexbroken device was designed based on the idea of decrease flow loss and vortex noise through breaking large-scale vortex. Experimental results show that after the device was added, when relative flow more than 45％, total pressure increase significantly and high efficiency area broaden. Total pressure nearly increases 44 Pa at the design flow, and the efficiency average increases 3％ when relative flow is 85％~100％. The device has a guiding significance of energy-saving for power plant.

关键词： centrifugal fan vortex numerical simulation vortexbroken device

作者: Song-ling WANG Lei ZHANG Qian ZHANG

作者单位: Department of Power Engineering, North China Electric Power University Baoding 071003, Hebei Province, P.R.China

会议类型: 国际会议

会议名称: The 2010 International Conference on Computer Application and System Modeling(2010计算机应用与系统建模国际会议 ICCASM 2010)

会议地点: 太原

会议语种:英文

页码: 580-584

在线出版日期: 2010-10-22（万方平台首次上网日期，不代表论文的发表时间）