Very light jets
نویسندگان
چکیده
منابع مشابه
Parameters for Very Light Jets of cD Galaxies
Recent Chandra X-ray observations of jets in central cluster galaxies show interesting features around the symmetry plane. We have carried out simulations involving bipolar jets, removing the artificial boundary condition at the symmetry plane. We use a very low jet density (IGM/jet ≈ 10 4) and take into account a decreasing density profile. We find that the jet bow shock undergoes two phases: ...
متن کاملVery Light Jets I. Axisymmetric Parameter Study and Analytic Approximation
The propagation of extragalactic jets is studied by a series of twelve axisymmetric hydrodynamic simulations. Motivated by observational constraints, but unlike most previous simulations, the regime of jet to external medium density (η) from 10 to 10 is explored, for Mach numbers (M) between 2.6 and 26. The computational domain contained the bow shocks for the whole simulation time. The bow sho...
متن کاملVery Light Jets in the National Airspace System
Problems that potential very light jet (VLJ) pilots of the future are having in the aircraft they currently fly, as evidenced in incident and accident reports, were analyzed. Significant problems identified include poor crew/single pilot resource management, low currency, inadequate preflight planning, avionics use difficulties, and cognitive performance issues, among others. Implications for t...
متن کاملVery Light Jets II: Bipolar large scale simulations in King atmospheres
Hydrodynamic jets, underdense with respect to their environment by a factor of up to 10, were computed in axisymmetry as well as in 3D. They finally reached a size of up to 220 jet radii, corresponding to a 100 kpc sized radio galaxy. The simulations are ”bipolar”, involving both jets. These are injected into a King type density profile with small stochastic density variations. The back-reactio...
متن کاملPotential Impacts of Very Light Jets on the National Airspace System
Very light jets constitute a class of three to eight passenger turbofan-powered aircraft thatwill enter service in 2006 and will need to be integrated into the National Airspace System. An aircraft performance analysis showed similarities between the predicted performance and capabilities of very light jets and the performance of existing light jets. Based on this, an analysis of operating patt...
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2003
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361:20021649