3D Numerical Simulation of Centrifugal Fan inside Flow Field and Modification Investigation
The 3D numerical simulation and flow analysis of G4-73No.8D centrifugal impeller are carried with NUMECA in order to investigate the internal flow field of fans. The research shows that the jets-wake flows, which reduce the fan’s performance, exist in the outlet of centrifugal impeller. The numerical simulation of fan added splitter blades is adopted to weaken the jet-wake flow structure, and optimized parameters of splitter blades which are defined according to the improvement of flow field in centrifugal fans. And then, the results of performance experiment indicate that the total pressure increases obviously, the efficiency of total pressure increases on the standard running conditions and the high effect area of the improved fans broadens in a narrow range.
Centrifugal fan Jet-wake flow Splitter blades Numerical simulation Experimental investigation
Yu-kun Lü Quan LU Jian WANG Jian ZHANG
School of Energy and Power Engineering, North China Electric Power University, Baoding 071003, China
国际会议
2007杭州国际动力工程会议(The International Conference on Power Engineering 2007)
杭州
英文
2007-10-23（万方平台首次上网日期，不代表论文的发表时间）