Study on rheological properties of composite propellant slurry in the mixing process by using experimental and numerical simulation.

ABSTRACT: Researchers have extensively focused on the safety of the solid propellant preparation process, particularly the mixing process that was deemed critical for the safety of the entire procedure. Herein, the rheological curves of propellants at different stages of mixing are obtained experimentally. The obtained curves are fitted using the Herschel-Bulkley non-Newtonian model. CFD calculations were performed using this data, allowing us to obtain the pressure and velocity evolution within the fluid domain during mixing. Such calculations are then used to assess the variation in the homogeneity of the mixture over time. Experimental evidence reveals that the viscosity of the composite propellant slurry is 32 Pa s after the addition of fine-grained ammonium perchlorate (AP). The propellant slur

SUBMITTER: Guo Z 

PROVIDER: S-EPMC11609947 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature