Introduction In hybrid rocket motors, one of the two propellants (oxidizer or fuel) is in liquid phase and the other is in solid phase. The combination of a solid fuel and a liquid oxidizer is the most common one, Fig. 1. 1 Even though the idea of hybrid rocket motor was conceived as early as 1937, it was only after 1960s they were built successfully with good combustion efficiency. A discussio...

This paper deals with the application of data mining techniques to the conceptual design knowledge for a LV (launch vehicle) with a HRE (hybrid rocket engine). This LV is a concept of the space transportation, which can deliver micro-satellite to the SSO (sun-synchronous orbit). To design the higher performance LV with HRE, the optimum size of each component, such as an oxidizer tank containing...

This work focuses on the large eddy simulation and study of turbulent dilute methanol spray flames in vitiated coflow using secondary-oxidizer Flamelet Generated Model (FGM). The modified FGM model uses an additional secondary oxidizer parameter addition to three other parameters previously used for flames—progress variable, mixture fraction, enthalpy. results gas phase droplet properties are v...

Among the energetic mixtures, one category are thermites. Thermites highly reactive composites described as consisting of a fuel (metal) and an oxidizer (metal oxide) at micron scale. The use nano-sized reactants, with higher surface area to volume ratio than micron-sized counterparts, considerably increases properties consequently raises their interest. present work expands on this aspect by i...

Improving the predictive capabilities of reduced-order models for design injector and chamber elements rocket engines could greatly improve quality early designs. In present work, we propose an innovative methodology that uses high-fidelity numerical simulations turbulent reactive flows artificial intelligence generation surrogate models. The were generated analyzed are deep learning networks t...