Earth Reentry Tool for Preliminary Mission Analysis
Journal Title: INCAS BULLETIN - Year 2015, Vol 7, Issue 2
Abstract
The preparation of atmospheric Earth reentry vehicles requires the estimation of heat and mechanical loads along the trajectory, as well as the impact point. A dedicated tool for axial symmetric capsules is prepared for trajectory propagation, providing relevant data for the thermal protection system sizing, such as the heat flux in the stagnation point calculated with five different models. Translational dynamics only are considered for the moment. The aerodynamic drag is computed using the minimal input as Mach dependant curves. The Reynolds number influence is also included, since the flow regimes to compute the drag coefficient are derived from a preliminary reference trajectory. Automatic generation of quality plot files is included, as well as 3D plot objects for Matlab, for later usage.
Authors and Affiliations
PRICOP Mihai Victor , COJOCARU Marius Gabriel , NICULESCU Mihai Leonida , BOSCOIANU Mircea
Large caliber blood vessel pseudoaneurysm following prosthetic surgery. Mathematical model and numerical considerations
Using a non-Newtonian mathematical model for the blood flow and a generalized Maxwell model for the viscoelastic behavior of the large vessels – elaborated and presented already by us in previous papers [1], [2] we make...
Method of formalizing the layout of the internal compartments of aircraft
The mathematical formulation of the aircraft’s internal layout problem is described as an optimization problem, with an indication of its objective function, constraints, and performance criteria. The approach (receptor...
STUDIES ON FLUTTER PREDICTION
The purpose of this paper is to study the instability of the dynamic flutter. The justification is expressed by the fact that the occurrence of flutter within the aircraft’s flight envelope results in irreversible struct...
Composite material designs for lightweight space packaging structures
This paper presents a study on advanced material designs suitable for lightweight space packaging structures. During this study, several material designs were proposed, evaluated and in the end three packaging structures...
Mechanical guided waves for fuel level monitoring system
The mechanical guided waves have a wide range of applications in many types of equipment and devices. The fuel level is an important parameter which needs to be monitored for a vehicle which can be a space vehicle, an ai...