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터보펌프 주변 극저온 공동 유동장의 호율적이고 정확한 해석
Efficient and Accurate Computations of Cryogenic Cavitating Flows around Turbopump Inducer

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Authors
김형준; 민대호; 김현지; 김종암
Issue Date
2014-07-17
Publisher
한국전산유체공학회
Citation
2014 한국전산유체공학회 춘계학술대회, pp. 141-146
Keywords
공학극저온 공동현상액체로켓 터보펌프 인듀서이상유동전 마하수유동Cryogenic cavitationLiquid rocket turbopump inducerTwo-pahse flowAll-speed flow
Abstract
This paper deals with the numerical computations of cryogenic cavitating flows around turbopump inducer in liquid rocket. Recently, accurate and efficient baseline numerical schemes have been developed for the computations of all-speed two-phase flows. The baseline numerical schemes – RoeM and AUSMPW+ schemes for multi-phase flows – are extended for treating general equation of state, and improved preconditioning techniques are developed for more robust and efficient computations in low-speed 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
http://hdl.handle.net/10371/92489
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Mechanical Aerospace Engineering (기계항공공학부)Others_기계항공공학부
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