TY - JOUR
T1 - Dynamic response analysis of high-pressure rocket pumps
AU - Jun, Sang In
AU - Tokumasu, Takashi
AU - Kamuo, Kenjiro
PY - 2004/11
Y1 - 2004/11
N2 - With regard to the development of a liquid-fuel rocket engine, knowledge of unsteady characteristics of turbopumps is essential in attempts to increase rocket reliability. Numerical simulation is very advantageous in determining the unsteady characteristics of turbopumps, and knowledge thus obtained can contribute to decreasing the cost and the number of experiments. In the present study, the effect of compressibility of cryogenic propellants, such as liquid hydrogen (LH2) and liquid oxygen (LOX), and the effect of nonlinearity of flow on the dynamic response of a high-pressure turbopump were considered. The results of calculation were compared with a nonlinear incompressible mathematical model. The effects of dynamic characteristics of a cavitating inducer, such as cavitation compliance and mass flow gain factor, as well as the effect of pipe elasticity and that of an accumulator for the POGO suppressor, were also analyzed.
AB - With regard to the development of a liquid-fuel rocket engine, knowledge of unsteady characteristics of turbopumps is essential in attempts to increase rocket reliability. Numerical simulation is very advantageous in determining the unsteady characteristics of turbopumps, and knowledge thus obtained can contribute to decreasing the cost and the number of experiments. In the present study, the effect of compressibility of cryogenic propellants, such as liquid hydrogen (LH2) and liquid oxygen (LOX), and the effect of nonlinearity of flow on the dynamic response of a high-pressure turbopump were considered. The results of calculation were compared with a nonlinear incompressible mathematical model. The effects of dynamic characteristics of a cavitating inducer, such as cavitation compliance and mass flow gain factor, as well as the effect of pipe elasticity and that of an accumulator for the POGO suppressor, were also analyzed.
KW - Cavitating Inducer
KW - Compressibility
KW - Cryogenic Propellants
KW - Dynamic Response
KW - Nonlinear Model
UR - http://www.scopus.com/inward/record.url?scp=33747688402&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33747688402&partnerID=8YFLogxK
U2 - 10.2322/tjsass.47.181
DO - 10.2322/tjsass.47.181
M3 - Article
AN - SCOPUS:33747688402
SN - 0549-3811
VL - 47
SP - 181
EP - 188
JO - Transactions of the Japan Society for Aeronautical and Space Sciences
JF - Transactions of the Japan Society for Aeronautical and Space Sciences
IS - 157
ER -