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http://dx.doi.org/10.6108/KSPE.2016.20.6.038

Centrifugal Compressor Performance Characteristics Analysis with Impeller Leading Edge Location  

Kim, Dongjun (Department of Aerospace Engineering, Pusan National University)
Kim, Kuisoon (Department of Aerospace Engineering, Pusan National University)
Choi, Jeongyeol (Department of Aerospace Engineering, Pusan National University)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.20, no.6, 2016 , pp. 38-45 More about this Journal
Abstract
A study was conducted on the effect of leading edge location for the performance characteristics of a centrifugal compressor impeller. Five impellers with different leading edge location were selected for numerical analysis. The impeller with leading edge located 10% away from the inlet about meridional distance from entrance to exit showed the best total pressure ratio and efficiency. Also, this case showed relatively uniform flow distribution because of a weak intensity of the separation region at impeller exit. The impeller with leading edge located far from this location showed lowest total pressure ratio and efficiency. Performance of compressor also decreased due to non-uniform flow distribution at impeller exit.
Keywords
Centrifugal Compressor; Impeller; Leading Edge; Performance;
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