Close-form Solution for Burning Surface Evolution and Performance Prediction of Finocyl Shaped Propellant Grain
In most of the modern rockets, blind slotted tubular propellant grains popularly known as finocyl (fin-o- cyl) grain has been used because of possibility of high volumetric loading, better neutrality and better tail-off characteristics. Ballistic prediction of such grains, have been attempted through development of burn-back equations. Burning surface area evolution in course of propellant combustion has been developed and validated using CAD models. The results are in the form of algebraic equations, which give burning perimeter in slotted section at different web burnt A typical finocyl shaped propellant grain in cartridge-loaded mode is processed and statically evaluated. The pressure-time-profile from actual firing matches well, with the predicted pressure time profile. The computational approach is simple, parametric and universal for performance prediction of finocyl port solid propellant grains.
solid propellant grains finocyl shape cartridge-loaded propellant ballistic prediction burnback equation burning surface
Himanshu SHEKHAR
High Energy Materials Research Laboratory, Sutarwadi, Pune-411 021, India
国际会议
西安
英文
907-911
2007-10-23（万方平台首次上网日期，不代表论文的发表时间）