scholarly journals A preliminary analysis of low frequency pressure oscillations in hybrid rocket motors

1995 ◽  
Author(s):  
R Jenkins ◽  
J Cook
Keyword(s):  
Preliminary Analysis ◽  
Low Frequency ◽  
Hybrid Rocket ◽  
Pressure Oscillations ◽  
Rocket Motors

scholarly journals Low-Frequency Feed-System-Coupled Combustion Instability in Hybrid Rocket Motors

2013 ◽  
Vol 8 (2) ◽  
pp. 380-394 ◽  
Author(s):  
Takakazu MORITA ◽  
Saburo YUASA ◽  
Koki KITAGAWA ◽  
Toru SHIMADA ◽  
Shigeru YAMAGUCHI
Keyword(s):  
Combustion Instability ◽  
Low Frequency ◽  
Hybrid Rocket ◽  
Feed System ◽  
Rocket Motors

Low-Frequency Combustion Instabilities Caused by Velocity Oscillations in Hybrid Rocket Motors

2018 ◽  
Vol 2018.24 (0) ◽  
pp. GS0508
Author(s):  
Shigenori IMAFUKU ◽  
Ryota KOJIMA ◽  
Shita MITSUDA ◽  
Takakazu MORITA
Keyword(s):  
Low Frequency ◽  
Combustion Instabilities ◽  
Hybrid Rocket ◽  
Rocket Motors

Dynamic Stability of a Water Brake Dynamometer

1998 ◽  
Vol 120 (1) ◽  
pp. 89-96 ◽  
Author(s):  
R. A. Van den Braembussche ◽  
H. Malys
Keyword(s):  
High Frequency ◽  
Low Frequency ◽  
Lumped Parameter Model ◽  
Stable Operation ◽  
Pressure Oscillations ◽  
Lumped Parameter ◽  
Flow Oscillations ◽  
Brake Dynamometer ◽  
Low Torque ◽  
Frequency Variations

A lumped parameter model to predict the high frequency pressure oscillations observed in a water brake dynamometer is presented. It explains how the measured low frequency variations of the torque are a consequence of the variation in amplitude of the high frequency flow oscillations. Based on this model, geometrical modifications were defined, aiming to suppress the oscillations while maintaining mechanical integrity of the device. An experimental verification demonstrated the validity of the model and showed a very stable operation of the modified dynamometer even at very low torque.

Testing and CFD Simulation of Diaphragm Hybrid Rocket Motors

2011 ◽  
Author(s):  
Alberto Bettella ◽  
Marta Lazzarin ◽  
Nicolas Bellomo ◽  
Francesco Barato ◽  
Daniele Pavarin ◽  
...  
Keyword(s):  
Cfd Simulation ◽  
Hybrid Rocket ◽  
Rocket Motors
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