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Effect of Diaphragm Thickness on Regression Rate Improvement in Hybrid Rocket Motor
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 Title & Authors
Effect of Diaphragm Thickness on Regression Rate Improvement in Hybrid Rocket Motor
Ryu, Sung-Hoon; Oh, Ji-Sung; Moon, Keun-Hwan; Kim, Hak-Chul; Moon, Hee-Jang; Kim, Jin-Kon;
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In this work, a study was conducted to investigate the effect of diaphragm thickness on the regression rate of the hybrid rocket motor. To observe the flow pattern and the recirculation zone, visualizations of combustion chambers with different diaphragm thickness (5mm, 10mm) were performed. It was found that the case with 5 mm thickness had a larger recirculation zone and therefore, had a higher regression rate than the case with 10mm thickness due to the increased residence time and heat transfer toward the fuel surface. Finally, it was concluded that the thickness of diaphragm can be a critical parameter for the enhancement of the regression rate.
Hybrid Rocket;Diaphragm;Recirculation Zone;Combustion Visualization;Regression Rate Measurement;
 Cited by
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Photron high speed cameras, World Wide Web location

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C. Palani Kumar and Amit Kumar, "Effect of Diaphragms on Regression Rate in Hybrid Rocket Motors", Journal of Propulsion and Power, may 2013