Restitution methodology for space and time dependent solid-fuel port diameter evolution in hybrid rocket engines

A post-processing tool for experimental data is developed to rebuild the instantaneous and local distributions of fuel port diameter regression rate throughout conduct during a firing test. The main objective use methodology be able, at given instant test, simulate hybrid rocket engine configuration validate related numerical modeling. based on coupling between mass flow obtained by ballistic reconstruction technique measurement after method adapted applied an rocket, using hydrogen peroxide/high density polyethlylene propellants, with catalytic injector (HYCAT). Firstly, set representative tests selected from HYCAT testing campaign. Secondly, analytical approach leads evolutions profiles conduct. rebuilt show ability restore space time distribution diameter. Nevertheless, some limitations even though average coherent trends.