Design of Funnel Port Tubular Propellant Grain for Neutral Burning Profile in Rockets

  • Himanshu Shekhar High Energy Materials Research Laboratory, Pune-411 021
DOI: https://doi.org/10.14429/dsj.59.1550
Keywords: Propellant geometry, propellant grain, tubular propellant grain, neutral burning profile, mathematical formulation.

Abstract

Radial outward burning tubular propellant grain gives progressive burning profile, but trimming port at one end to conical form gives close to neutral burning profile. Though this configuration is easy to realize, but closeform burnback equation for performance prediction of such propellant geometry is not available. In this paper, close-form burnback equation for conically trimmed tubular propellant grain is developed. One propellant grain is also evaluated and performance matching to prediction by developed formulation is realised. Parametric study for different aspect ratio (L/D), diameter ratio (d/D) and slant angle (q) is carried out for a typical configuration and variation is explained. The developed formulation is simple, handy, easy and quick.

Defence Science Journal, 2009, 59(5), pp.494-498, DOI:http://dx.doi.org/10.14429/dsj.59.1550

Published
2009-09-01
How to Cite
Shekhar, H. (2009). Design of Funnel Port Tubular Propellant Grain for Neutral Burning Profile in Rockets. Defence Science Journal, 59(5), 494-498. https://doi.org/10.14429/dsj.59.1550
Issue
Vol 59 No 5
Section
Research Papers
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