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극저온 이상유동 고정밀 수치해석을 통한 액체로켓 터보펌프 인듀서 성능예측 연구 : Performance Prediction of Liquid Rocket Turbo-pump Inducer using a high fidelity cryogenic two-phase computation
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- Authors
- Issue Date
- 2013-02-28
- Publisher
- 한국항공우주학회
- Citation
- 제12회 우주발사체기술 심포지움, pp. 142-149
- Keywords
- 공학 ; Cryogenic cavitation ; Turbopump inducer ; Two-phase flow ; All-speed flow
- Abstract
- The present paper deals with a numerical simulation of cryogenic cavitating flows around turbopump inducer in liquid rocket. Recently, we have developed an accurate and efficient baseline numerical scheme for the computations of all-speed two-phase flows. Firstly, by extending such progress, we conduct some modification of preconditioning technique and propose an accurate and efficient numerical method to deal with the computations of cryogenic two-phase flows. Secondly, we compute and compare, for the purpose of validating the proposed method, two-dimensional/axis-symmetric cryogenic cavitation flows around hydrofoil and ogive. Finally, numerical simulations of three-dimensional KARI turbopump inducer are carried out under various flow conditions with water and cryogenic fluids, and we examine the differences in inducer flow physics depending on the working fluids.
- Language
- Korean
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