Currently, a new generation of scientific aerospace vehicles, using advanced hypersonic airbreathing propulsion based on supersonic combustion technology, is in development at several research centers [1]. The 14-X Brazilian Hypersonic Aerospace Vehicle, Figure 1, designed by Rolim et al. [2], at the Prof. Henry T. Nagamatsu Laboratory of Aerothermodynamics and Hypersonics, Figure 2, at the Ins...

One of NASA's four main product lines is developing and transferring to U. S. industry enabling technologies required for next generation aerospace vehicles as part of the Aerospace Technology Enterprise. This paper overviews the Ultra Efficient Engine Technology (UEET) Program, NASA's focused aerospace propulsion technology program. The UEET Program emphasizes technology development in six sel...

A Microelectromechanical System-based (MEMS) PICOSAT Inspector (MEPSI) picosatellite on STS-116, in December 2006, used a five thruster cold gas propulsion system to translate and rotate. The inspector picosatellite measured 4 x 4 x 5 inches in dimension and weighted 1.4 kg. Our propulsion system was produced by a unique (to spacecraft) method of manufacturing that is low cost, tightly integrat...

1) Geophysical Institute, University of Alaska Fairbanks, AK, 99775, USA; email: [email protected] 2) Microwaves and Radar Institute, German Aerospace Center (DLR), 82234 Wessling, Germany; email: [email protected] 3) Remote Sensing Technology Institute, German Aerospace Center (DLR), 82234 Wessling, Germany; email: [email protected] 4) Jet Propulsion Laboratory, California Institute of Tech...

The flow fields which can be observed inside several components of aerospace propulsion systems are characterised by the presence of very localised phenomena (boundary layers, shock waves,...) which can deeply influence the performances of the system. In order to accurately evaluate these effects by means of Computational Fluid Dynamics (CFD) simulations, it is necessary to locally refine the c...

This research examines results from a dual case study in defining a model for high productivity and performance of cross-functional development teams in an aerospace engineering community. More specifically it explores cohesiveness and team dynamics over an approximate 4-year period in a project team that recently designed and built a highly innovative propulsion system. The ‘successful’ team d...