The joy of smoke and fire, from a test stand I helped analyze. J Below is a photo of a test of the gas generator off of a vintage F1 engine. There's more info and a video on the NASA website.
Here's a photo of the surface that the flames are shooting across, actually taken before the test.
Below
is a photo of the test stand being modified for the test, followed by a
screenshot of the model. There isn’t much room to move around, with all
of the piping systems twisting around the structure, test article, and
each other.
Here is a section of the LOX system, followed by analysis of the new LOX support structure.
