Low Boom Flight Demonstrator–Eddy Simulation
Wall-modeled large eddy simulation of a two-stream internally mixed nozzle with an internal plug, performed with NASA’s Launch Ascent and Vehicle Aerodynamics (LAVA) solver. (Top) Streamwise velocity. Bottom: Temperature. Kelvin-Helmholtz instabilities from the mixing of the heated inner stream and the cold outer stream can be observed.
Image Credit: NASA/Ames, Gerrit-Daniel Stich