[Abstract] One of the notable attributes of the Gasdynamic Mirror (GDM) fusion propulsion system is the fact that it lends itself readily to thrust control due to asymmetry in the magnetic field configuration. GDM is a magnetic plasma confinement device that has been proposed as a potential propulsion system. It differs from the standard “collisionless” mirror in that it operates at a much high...

An airframe integrated scramjet propelled vehicle has advantages for application to several missions. In its simplest form, such a vehicle will combine the features of quick reaction, low vulnerability to counter attack and better propulsion efficiency. The Supersonic Combustion Ramjet (SCRAMJET) engine has been recognized as the most promising air breathing propulsion system for the hypersonic...

An assessment of model uncertainty via probabilistic methods is described. An important question that arises in conceptual design is how accurate do models have to be to be useful? That is to say, when do other uncertainties in a higher fidelity model counteract its accuracy when compared to a lower fidelity model faced with these same uncertainties? A detailed definition of model uncertainty i...

This thesis presents an approach for the optimization of the propulsion system of an unmanned lightweight quadrotor by introducing rotor aerodynamics and identifying methods to improve the electrical propulsion system (EPS), hence improving its performance and efficiency. Since the rotor is the main component to generate thrust, a numerical model based on the combined momentum and blade element...