Turbulence model could help design aircraft capable of handling extreme scenarios Note to journalists: A video about the development of this model is available on YouTube. For a copy of the paper, please contact Kayla Wiles, Purdue News Service, at wiles5@purdue.edu or 765-494-2432. Photos and video of the research process and simulations are available via Google Drive. Journalists visiting campus should follow visitor health guidelines. Engineers make it possible to simulate complete ‘dance’ of colliding vortices at reduced computational time WEST LAFAYETTE, Ind. — In 2018, passengers onboard a flight to Australia experienced a terrifying 10-second nosedive when a vortex trailing their plane crossed into the wake of another flight. The collision of these vortices, the airline suspected, created violent turbulence that led to a free fall.