Turbulent separated flows around an airship-like geometry (a prolate spheroid 6:1) are investigated using three turbulence modelings based on statistical and Large Eddy Simulation (LES) approaches. The turbulence models used in the simulations are a standard high Reynolds k–ε model, a Smagorinsky LES model and a variational multiscale LES one. The flow of interest is characterized by a relative...

A theory of the Hindenburg fire that has gained popular acceptance proposes that an incendiary paint covered the outer surface of the airship. Further, according to this theory, the paint was both the point of ignition and the sole cause of the rapid spread of the fire. The hydrogen within the airship is held blameless for both the start of the fire and its subsequent advance. We have examined ...

The contribution of this paper is the proposal a new receding horizon trajectory generation method for stratospheric airships’ return phase. Since energy consumption, wind field and path constraints are restrictions during phase airships at low altitude, it crucial to develop novel optimization methods ensure that airship returns landing site. In article, objects conditions were constructed, co...