The performance of the solid propellant rocket with star-shape grain was analyzed with the assumptions of ideal rocket. The computer program with fortran 77 language was developed to simulate the performance and the results of the numerical data were...
The performance of the solid propellant rocket with star-shape grain was analyzed with the assumptions of ideal rocket. The computer program with fortran 77 language was developed to simulate the performance and the results of the numerical data were well agreed with the experimental data, pressure-time and thrust-time curve.
The results of this study are as follows
1. Developed program can be used to analyze other solid propellant rocket with different grain configuration.
2. Maximum burning area occurred at the end portion of the web which is the beginning of the sliver, regardless of the number of inhibiter.
3. In case of one face inhibiting, thrust-time curve was neutral and progressive for both faces inhibiting.
4. The shapes of burning area vs time curve, cumbustion pressure vs. time curve and thrust vs. time curve were similar.
5. In case of one face inhibiting, nozzle exit pressure was 14.6-18.2726(psi) and 13.3282-19.7981(psi) for both faces inhibiting.