This paper presents a dynamic model of the interior ballistics of an experimental liquid propellant powered rifle. The liquid propellant powered rifle described utilizes a mixture of hydroxyl ammonium nitrate and hydrocarbon fuel to replace gunpowder typically used in such firearms. The motivation for such a development is to discard the need for a shell casing whereby carrying only propellant ...

Floating ring seals are widely used as a leakage control solution for turbomachines because they effectively operate with small clearances between the shaft and seal. The oxidizer pump of 7 tonf liquid engine in Korea Space Launch Vehicle II (KSLV-II) operates at high rotational speeds under cryogenic conditions has floating bearing cooling path to reduce leakages. In this study, we evaluated f...

Accurate simulation of radiative heat-transfer effects from the rocket engine exhaust plays an important role for the proper characterization of missile base heat loads. To promote improved radiative transfer solutions, careful attention to the physical flow-field models is paramount. Use of a generalized fluid dynamic model can assist in the close approximation of the actual base heating by so...

The possibility of a significant flight range extension guided aerial bomb during climb bombing due to the jet thrust created by solid-propellant rocket engine was considered. By means simulation, comparative analysis equipped (not equipped) with under typical conditions carrier aircraft level and performed. It demonstrated that use engine, whose mass is 20 % bomb’s mass, allows increase horizo...

Recent interest in cube satellites over the last few years has created related interest in propulsion for small satellites. Cubesats, more than other satellites, are volume and power constrained, which pose significant challenges for implementation of cubesat propulsion systems. R-134a propellant systems can provide low cost and efficient propulsion for small impulse maneuvers, orbital maintena...