Donggyu YUN, Hyunwoo KIM, Hong-Gye SUNG

DOI Number: N/A

Conference number: HiSST-2025-201

The liquid fuel break-up and spray combustion in supersonic crossflow are primarily encountered in scramjet engines. In scramjet engines, the residence time for combustion is extremely short, requiring the fuel to vaporize and mix rapidly. A preheated liquid jet injector can be considered as the effective way to enhance the liquid break-up and atomize at certain time. Therefore, in this study, the feasibility of preheated jet injection is validated, and the analysis is subsequently extended by injecting preheated JP-10 into a supersonic combustor. The numerical approach aims to provide a comprehensive simulation of the processes of ligament and droplet breakup and atomization, employing the homogeneous mixture model (HMM) and large eddy simulation (LES). Also, numerical techniques are applied, including the Novel-Abel Stiffened Gas (NASG) state equation, Adaptive Mesh Refinement (AMR), evaporation and phase change models, and the Eulerian-Lagrangian (EtoL) transformation.

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In Categories: 1.Events, 1.HiSST 2025, Propulsion Systems & Components
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