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http://dx.doi.org/10.7316/KHNES.2018.29.4.401

Numerical Investigation on Multi-stage Axial Fan and Compressor for Considering Pressure Losses by Instrumentation and Area-averaged Properties  

CHOI, JAEHO (Aerospace R&D Center, Hanwha Aerospace)
KIM, SEMI (Aerospace R&D Center, Hanwha Aerospace)
LEE, WONSUK (Aerospace R&D Center, Hanwha Aerospace)
CHOI, TAEWOO (Aerospace R&D Center, Hanwha Aerospace)
KIM, JINWOOK (Aerospace R&D Center, Hanwha Aerospace)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.29, no.4, 2018 , pp. 401-409 More about this Journal
Abstract
A numerical investigation has been conducted to find the effects of pressure losses by struts and rakes, and averaging methods on the performance of a multi-stage axial fan and a multi-stage axial compressor. Struts and rakes which produce pressure losses are installed upstream of the aerodynamic inlet plane in the fan and the compressor rigs. Some of normal stator vanes are substituted with thick vanes with total pressure probes to measure total pressure between stages. Three-dimensional Reynolds-averaged Navier- Stokes equations with $k-{\omega}$ SST turbulence model were applied to analyze the pressure losses by the struts, inlet rakes, and thick instrumented vanes. The hexahedral grids were used to construct computational domain. Inlet pressure losses were evaluated for the compressor as a function of Mach number. The passage pressure losses due to the instrumented vanes were evaluated at the two speed lines in the fan. Total properties, such as pressure and temperature, were evaluated at the exit of the fan and the compressor with two different averaging methods which are area-averaging and mass-averaging, respectively.
Keywords
Axial fan; Axial compressor; Pressure loss; Mass-averaging; Performance evaluation; Aerodynamic inlet plane;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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