Optical investigation of paraffin-based fuel combustion in a hybrid rocket slab burner

RICCARDO GELAIN; ARTUR ELIAS DE MORAIS BERTOLDI; PATRICK HENDRICK

DOI Number: 10.13009/EUCASS2023-041

Hybrid rocket slab burners can be used to study the combustion behaviour of different hybrid rocket fuels at different operating conditions thanks to optical accesses and high-speed video techniques. This paper focuses on the combustion visualization of a paraffin-based fuel grain burning with oxygen at different pressure and oxidizer mass flux. After a short overview of the experimental setup and the improvements over previous works, some images acquired during two different test campaign are shown, and the main features of paraffin combustion identified in the videos are discussed. Finally, a qualitative discussion of the effect of the pressure and oxidizer mass flux on the observed flame thickness and brightness is provided.

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Hybrid Rocket, optical investigation, paraffin, slab burner

In Categories: 1. Aerospace Europe Conference 2023, 1.Events, 10. Propulsion Physics

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