CFD image of Hyper-X research vehicle

2011-02-05T14:48:00.000-08:00

This computational fluid dynamics (CFD) image shows the Hyper-X vehicle at a Mach 7 test condition with the engine operating. The solution includes both internal (scramjet engine) and external flow fields, including the interaction between the engine exhaust and vehicle aerodynamics. The image illustrates surface heat transfer on the vehicle surface (red is highest heating) and flowfield contours at local Mach number. The last contour illustrates the engine exhaust plume shape. This solution approach is one method of predicting the vehicle performance, and the best method for determination of vehicle structural, pressure and thermal design loads. The Hyper-X program is an ambitious series of experimental flights to expand the boundaries of high-speed aeronautics and develop new technologies for space access. When the first of three aircraft flies, it will be the first time a non-rocket engine has powered a vehicle in flight at hypersonic speeds--speeds above Mach 5, equivalent to about one mile per second or approximately 3,600 miles per hour at sea level.

X48: Green Aviation's Peculiar Scout

2011-02-05T14:22:00.000-08:00

X48: Green Aviation's Peculiar Scout

A tail-less, remotely piloted mini-jet with an unorthodox shape, NASA's X48 could help future airliners cut fuel consumption, reduce noise, and lower emissions by a lot.

Thanks to www.Aviationweek.com

aeronautics and aerospace

CFD image of Hyper-X research vehicle

X48: Green Aviation's Peculiar Scout