Just FYI...
Senior Mechanical Engineers Win 1st Place at AIAA Conference
https://viterbischool.usc.edu/news/2018/04/senior-mechanical-engineers-
win-1st-place-at-aiaa-conference/
Liquid Bipropellant Injector Senior Design Project
http://www.johannfreeberg.com/academic-work-1/
Spray Cone Formation from Pintle-Type Injector Systems in Liquid Rocket
Engines
http://www.johannfreeberg.com/s/Pintle_Injector_Spray_Cone_Formation_Bl
akely-Freeberg-Hogge.pdf