Investigation on parameters influence for intrinsic instability analysis of solid propellant (AP+HTPB+TDI) using computational image-processing technique

Abstract

The effect of the different mixture in a high volumetric concentration of oxidizer-(AP), with least percentage of binder-(HTPB+TDI), for improving the propellant burn rate was investigated. The combustion experiment is performed using a window bomb setup and the high-speed camera is utilized to capture the flame images. An image processing approach is used to measure the burn rate and intrinsic instability of flame by discrete wavelet transform method. Region growing algorithm technique is used for image segmentation. The morphological operation is implemented with Euclidean distance measurement for the identification of flame height in configuring with dependent parameters (burning rate, diffusion flame height). The qualitative analysis (signal characterization) and quantitative analysis (mean, kurtosis, skewness, standard deviation, and frequency) were used to study the intrinsic instability characteristics of the flame diffusion. A result obtained from the analysis proves that the instability in fuel combustion occurs at higher mix and pressure level.

Two-component propellant grain for rocket motor: Combustion analysis and geometric optimization

“…They are composite solid propellants that have similar compositions but a different oxidizer and fuel ratios. The propellants are based on ammonium perchlorate (AP) as an oxidizer, and significant experimental work has been done to find out the parameters that influence the burning rates of compositions that contain AP [15,16].The propellants composition will not be discussed in this paper as its characteristics will be introduced in the model as a given input; however, it is an area of interest to study the selected propellant of this grain.…”