By a News Reporter-Staff News Editor at Defense & Aerospace Week -- Investigators publish new report on Propulsion and Power. According to news reporting originating from Tamil Nadu, India, by VerticalNews correspondents, research stated, "The measurement of the regression rate of a hybrid rocket fuel is the subject matter of this paper. This is an involved problem because both the regression rate and the oxidizer mass flux G(ox) vary with the port diameter, which itself varies during combustion."
Our news editors obtained a quote from the research from the Indian Institute of Technology, "This paper addresses the issue of how G(ox) should be varied to obtain the regression rate correctly. The most commonly used weight loss method has been employed here. Three methods used here to vary the G(GX,) are artificially changing the port diameter, changing the mass flow rate of the oxidizer, and interrupted burn test. From the experiments conducted, it was evident that the interrupted burn test was the best method. These experiments were also carried out for a larger motor and the results compared quite well with established literature. The role of the recirculation zone size near the head end and the overall heat transferred back to the fuel surface in influencing the regression rate have been explained."
According to the news editors, the research concluded: "The role of the recirculation zone diminishes as the length of the rocket motor is increased."
For more information on this research see: Issues Related to the Measurement of Regression Rate of Fast-Burning Hybrid Fuels. Journal of Propulsion and Power, 2013;29(5):1114-1121. Journal of Propulsion and Power can be contacted at: Amer Inst Aeronautics Astronautics, 1801 Alexander Bell Drive, Ste 500, Reston, VA 22091-4344, USA.
The news editors report that additional information may be obtained by contacting R. Kumar, Indian Inst Technol, Dept. of Aerosp Engn, Madras 600036, Tamil Nadu, India.
Keywords for this news article include: Asia, India, Tamil Nadu, Propulsion and Power
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