[KSCI] Korea Science Citation Index Service

Numerical Evaluation of Flow and Performance of Turbo Pump Inducers

Shim, Chang-Yeul (Seoul National University, Turbo and Power Machinery Research Center)
Kang, Shin-Hyoung (School of Mechanical and Aerospace Engineering Seoul National University)

Publication Information

Journal of Mechanical Science and Technology / v.18, no.3, 2004 , pp. 481-490 More about this Journal

Abstract

Steady state flow calculations are executed for turbo-pump inducers of modern design to validate the performance of Tascflow code. Hydrodynamic performance of inducers is evaluated and structure of the passage flow and leading edge recirculation are also investigated. Calculated results show good coincidence with experimental data of static pressure performance and velocity profiles over the leading edge. Upstream recirculation, tip leakage and vortex flow at the blade tip and near leading edge are main sources of pressure loss. Amount of pressure loss from the upstream to the leading edge corresponds to that of whole pressure loss through the blade passage. The viscous loss is considerably large due to the strong secondary flow. There appears more stronger leading edge recirculation for the backswept inducer, and this increases the pressure loss. However, blade loading near the leading edge is considerably reduced and cavitation inception delayed.

Keywords

Turbo Pump; Inducer; Pressure Loss; Secondary Flow; Recirculation;

Citations & Related Records

Reference

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