S-Space College of Engineering/Engineering Practice School (공과대학/대학원) Dept. of Mechanical Aerospace Engineering (기계항공공학부) Others_기계항공공학부
Computations of Cryogenic Cavitating Flows around Turbopump Inducer
- Kim, Hyeongjun; Min, Daeho; Kim, Chongam
- Issue Date
- The Eighth International Conference on Computational Fluid Dynamics (ICCFD8),
Chengdu, Sichuan, China, July 14-18, 2014
- 공학; Cryogenic Cavitation; All-speed Two-phase Flows; Thermal Effect; Turbopump Inducer Simulation
- This paper deals with the numerical computations of cryogenic cavitating flows around turbopump inducer in liquid rocket. The baseline numerical fluxes for the computations of all-speed two-phase flows (two-phase RoeM and AUSMPW+ schemes) are extended for treating general equation of states, and improved preconditioning techniques are developed for robust and efficient computations in low-speed region. As a validation step for such progress, cryogenic cavitating flows around hydrofoil and ogive are computed. Finally, numerical simulations of three-dimensional KARI turbopump inducer are carried out under various flow conditions with water and cryogenic fluids, and the difference in inducer flow physics depending on the working fluids are examined.