How to model full size rocket plumes at subscale?
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Modeling full-size rocket plumes at subscale involves several approaches. One method is to conduct ground tests using inert-gas jets impinging on mechanical regolith simulants to collect data on cratering, ejecta, and plume structure . Another approach is to create a Lagrangian plume model embedded into a global Eulerian model, which helps resolve subgrid plumes in the stratosphere . Additionally, a numerical study using a Computational Aeroacoustics (CAA) hybrid method can predict the acoustical emissions induced by supersonic jets of different nozzle types . Another method involves generating an unstructured grid and solving plume flow field physical models using computational fluid dynamics software, which provides flow field data for plume simulation . Finally, the radiation of plumes from reduced scaling solid rocket models can be computed using the radiative transfer equation and spectral characteristics of plume gases and particles .
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