Parachute systems for the atmospheric reentry of launcher upper stages

Parachute systems can be used to control the reentry trajectory of launcher upper stages, in order to lower the risks to the population or facilitate the retrieval of the stage. Several types of parachutes deployed at su...

Book review AIRCRAFT DYNAMICS WITH INPUT DELAYS (Romanian title: Dinamica avionului cu întârzieri în comandă) by Achim IONIŢĂ

The impact of aerodynamics on fuel consumption in railway applications

The main consequence of on air flow surrounding a moving train resides in the aerodynamic drag and a certain pressure distribution on the frontal and lateral surfaces of the vehicle. The actual value of the aerodynamic d...

The hexapod robot for aircraft fuel tank and the use of calculation in the analysis of the effectiveness of radio interference

This paper focuses on the use of calculation for analyzing the effects of radio interference associated with the entry into the aircraft fuel tank of the hexapod robot. The analysis will help to demonstrate how the mobil...

Unsteady Flow in a Horizontal Double-Sided Symmetric Thin Liquid Films

In this paper a mathematical model is constructed to describe a two dimensional incompressible flow in a symmetric horizontal thin liquid film for unsteadies flow. We apply the Navier-Stokes equations with specified boun...