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터보펌프 인듀서 주변 극저온 공동 유동에 대한 수치적 연구
Numerical investigation on cryogenic cavitating flows around turbopump inducer

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Authors
민대호; 김형준; 김현지; 김종암
Issue Date
2014-02-20
Publisher
한국항공우주학회
Citation
제 13회 우주발사체기술 심포지움, 대전, 2014, pp. 100-105
Keywords
공학Cryogenic CavitationCompressible/Incompressible Two-phase FlowTurbopump Inducer Simulation
Abstract
This research deals with performance prediction of turbopump inducer through the two-phase flow computations. To describe the thermal effects of cryogenic fluids and two-phase flows, we used the additional governing equation for one-phase mass conservation law. As a spatial descritization scheme, RoeM for multi-phase flows are extended to treat the general equation of states, and preconditioning techniques are applied for robust and efficient computations in low-mach number region. As a validation step for such progress, two-dimensional/axi-symmetric cryogenic cavitating flows around hydrofoil and ogive are computed with different working fluids and cavitation models. Finally, numerical simulations of three-dimensional KARI turbopump inducer are carried out under various flow conditions with water and cryogenic fluids, and the differences in inducer flow physics depending on the working fluids are examined.
Language
Korean
URI
https://hdl.handle.net/10371/91667
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Mechanical Aerospace Engineering (기계항공공학부)Others_기계항공공학부
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