Effect of varying design options on the transient behavior of a hybrid rocket motor
Hybrid rockets provide compelling features for use in atmospheric and space rocket propulsion. One of the prominent applications of hybrid rockets which foster on its characteristics is the propulsion of micro air launch vehicles. In this paper, a set of design options of a hybrid rocket motor...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English English |
| Published: |
Instituto de Aeronautica e Espaco-IAE
2014
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/43828/ http://irep.iium.edu.my/43828/ http://irep.iium.edu.my/43828/ http://irep.iium.edu.my/43828/1/2014-Effect_of_Varying_Design_Options_on_theTransient_Behavior_of_a_Hybrid_Rocket_Motor_2014.pdf http://irep.iium.edu.my/43828/4/43828_Effect%20of%20Varying_scopus.pdf |
| Summary: | Hybrid rockets provide compelling features for
use in atmospheric and space rocket propulsion. One of the
prominent applications of hybrid rockets which foster on its
characteristics is the propulsion of micro air launch vehicles.
In this paper, a set of design options of a hybrid rocket motor
is evaluated for propulsion of micro air launch vehicles. In
order to evaluate the various design options of a hybrid
rocket, we developed design and performance simulation
codes. A simulation code is based on a legacy interior ballistic
model. MATLAB® environment was used to develop the design
and performance analysis codes and to visualize the temporal
variation of performance characteristics and grain geometry
during burning. We employ the developed codes to assess
the replacement of solid rocket motors which are typically
used in Air Launch Vehicles by hybrid rocket motors. A typical
Micro Air Launch Vehicle mission to launch a 20-kg payload
into a 400-km circular polar orbit is assumed. The results
show that a hybrid rocket is a suitable candidate for micro
air launch vehicles. The performance is improved in terms
of specific impulse and thrust with smaller size in the same
mission. Several design parameters of hybrid rocket motors
were also evaluated and analyzed, including different fuel port
geometry, type of fuels and oxidizers, number of ports, nozzle
design and initial mass flux. These design parameters bring
a significant effect on hybrid rocket performance and size. |
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