CFD Check-up Study of a Solid Propellant Rocket Engine Internal Pressure and Performance Under Random Nozzle Diameter Change

Flow inside a solid rocket engine has been a topic of research and has been studied both experimentally and numerically in the Bucharest's Military Technical Academy. The article will discuss previous experimental and computational research on the two-dimensional and axis-symmetrical solid propellant rocket engine inside flow parameters, because of nozzle's critical diameter random decrease soon after initialization of the engine. Such study, based on cost effective CFD simulations, will indicate how pressure in the engine's burning chamber can change, and further help to evaluate some of the implications on reliability and correct functionality of a real product.