• Title/Summary/Keyword: Bakflow

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Numerical Evaluation of Flow and Performance of Turbo-Pump Inducers (터보펌프 인듀서의 유동 및 성능의 수치적 평가)

  • Shim, Chang-Yeul;Kang, Shin-Hyoung
    • The KSFM Journal of Fluid Machinery
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    • v.5 no.2 s.15
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    • pp.22-28
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    • 2002
  • Steady state flow calculations are conducted for the newly-designed turbo-pump inducers to validate the performance of Tascflow code. Hydrodynamic performance is evaluated, and structures of the passage flow and leading edge recirculation are also investigated. The calculated results show good coincidence with the experimental data of the static pressure performance and velocity profiles near the leading edge. Upstream recirculation, tip leakage and vortex flow at the blade tip and near leading edge are main sources of pressure losses. Amount of pressure losses from the upstream to the leading edge corresponds to that of pressure losses through the whole blade. The total viscous losses are considerably large due to the strong secondary flow.