Parafoil Flight Dynamics Analysis

U ovome je radu fokus na općeniti prikaz padobranskog krila i njegovih karakteristika. Cilj je prikazom konstrukcije te analizom statike i dinamike padobranskog sustava, pružiti kvalitetan uvid u njegova ponašanja i ograničenja. Osim toga, napravljen je izračun aerodinamičkih karakteristika i performansi teorijskog modela.This thesis focuses on a general representation of a parafoil including its characteristics. The objective is to provide a thorough insight of its behaviour and limitations through representation of its design and through static and dynamic analysis. Furthermore, a calculation of aerodynamic characteristics and performance of a theoretical model is provided

Parafoil Flight Dynamics Analysis

U ovome je radu fokus na općeniti prikaz padobranskog krila i njegovih karakteristika. Cilj je prikazom konstrukcije te analizom statike i dinamike padobranskog sustava, pružiti kvalitetan uvid u njegova ponašanja i ograničenja. Osim toga, napravljen je izračun aerodinamičkih karakteristika i performansi teorijskog modela.This thesis focuses on a general representation of a parafoil including its characteristics. The objective is to provide a thorough insight of its behaviour and limitations through representation of its design and through static and dynamic analysis. Furthermore, a calculation of aerodynamic characteristics and performance of a theoretical model is provided

Parallel Computational Methods For 3D Simulation Of A Parafoil With Prescribed Shape Changes

In this paper we describe parallel computational methods for 3D simulation of the dynamics and fluid dynamics of a parafoil with prescribed, time-dependent shape changes. The mathematical model is based on the time-dependent, 3D Navier-Stokes equations governing the incompressible flow around the parafoil and Newton's law of motion governing the dynamics of the parafoil, with the aerodynamic forces acting on the parafoil calculated from the flow field. The computational methods developed for these 3D simulations include a stabilized space-time finite element formulation to accommodate for the shape changes, special mesh generation and mesh moving strategies developed for this purpose, iterative solution techniques for the large, coupled nonlinear equation systems involved, and parallel implementation of all these methods on scalable computing systems such as the Thinking Machines CM-5. As an example, we report 3D simulation of a flare maneuver in which the parafoil velocity is reduced ..