TY - GEN
T1 - Numerical study on flow induced vibration in a rocket engine preburner
AU - Inoue, Chihiro
AU - Watanabe, Toshinori
AU - Himeno, Takehiro
PY - 2006
Y1 - 2006
N2 - In a preburner of liquid rocket engines, some liquid-oxygen (LOX) posts, which introduced oxygen and hydrogen into combustion chamber, experienced severe flow-induced vibration in unsteady hydrogen flow. The mechanism of the vibration has not been fully understood because of the complexity of the flow field. In the present study, a new numerical method was developed to analyze the flow field of hydrogen, whose characteristic properties lie in its non-idealness and compressibility. The unsteady hydrogen flow inside the preburner unit was analyzed to investigate the details of hydrogen flow field as well as the mechanism of LOX post vibration. It was clarified that hydrogen flow inside the manifold was strongly affected by the upstream condition.
AB - In a preburner of liquid rocket engines, some liquid-oxygen (LOX) posts, which introduced oxygen and hydrogen into combustion chamber, experienced severe flow-induced vibration in unsteady hydrogen flow. The mechanism of the vibration has not been fully understood because of the complexity of the flow field. In the present study, a new numerical method was developed to analyze the flow field of hydrogen, whose characteristic properties lie in its non-idealness and compressibility. The unsteady hydrogen flow inside the preburner unit was analyzed to investigate the details of hydrogen flow field as well as the mechanism of LOX post vibration. It was clarified that hydrogen flow inside the manifold was strongly affected by the upstream condition.
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U2 - 10.2514/6.2006-5193
DO - 10.2514/6.2006-5193
M3 - Conference contribution
AN - SCOPUS:34249302730
SN - 1563478188
SN - 9781563478185
T3 - Collection of Technical Papers - AIAA/ASME/SAE/ASEE 42nd Joint Propulsion Conference
SP - 8345
EP - 8353
BT - Collection of Technical Papers - AIAA/ASME/SAE/ASEE 42nd Joint Propulsion Conference
PB - American Institute of Aeronautics and Astronautics Inc.
T2 - AIAA/ASME/SAE/ASEE 42nd Joint Propulsion Conference
Y2 - 9 July 2006 through 12 July 2006
ER -