This paper provides a summary of the POLITEHNICA University’s UAS, SkyEye, designed to meet the objectives of AUVSI student UAS competition. SkyEye is a custom built quad copter controlled by the pixhawk, an open-source...
This paper presents a study which analyses the functioning and performances optimization of a hybrid rocket engine based on gaseous oxygen and polybutadiene polymer (HTPB). Calculations were performed with NASA CEA softw...
In this paper different types of stabilities (global, local) with respect to instantaneous perturbations and permanent source produced time harmonic perturbations are presented in case of a spatially developing gas flow....
This article aims to provide a quick methodology to determine the critical values of the forces applied to the central plane of a flat isotropic plate at which a change to the stable configuration of equilibrium occurs....
Traditionally, the wall-bounded flows are boundary-layer like flows where the velocity gradients normal to the wall u/y are very large and the velocity monotonously increases from zero to about the velocity free flow,...
Phoenix Team's 2015 Unmanned Autonomous System
This paper provides a summary of the POLITEHNICA University’s UAS, SkyEye, designed to meet the objectives of AUVSI student UAS competition. SkyEye is a custom built quad copter controlled by the pixhawk, an open-source...
Performances Study of a Hybrid Rocket Engine
This paper presents a study which analyses the functioning and performances optimization of a hybrid rocket engine based on gaseous oxygen and polybutadiene polymer (HTPB). Calculations were performed with NASA CEA softw...
Global and local stability and instability of the constant spatially developing gas flow
In this paper different types of stabilities (global, local) with respect to instantaneous perturbations and permanent source produced time harmonic perturbations are presented in case of a spatially developing gas flow....
Buckling of Flat Thin Plates under Combined Loading
This article aims to provide a quick methodology to determine the critical values of the forces applied to the central plane of a flat isotropic plate at which a change to the stable configuration of equilibrium occurs....
Nearest Wall Flows – the Genuine Turbulence
Traditionally, the wall-bounded flows are boundary-layer like flows where the velocity gradients normal to the wall u/y are very large and the velocity monotonously increases from zero to about the velocity free flow,...