Trajectory Optimization for a Supersonic Air-Breathing Missile System Using Pseudo-Spectral Method

High-Performance Supersonic Missile Inlet Design Using Automated Optimization

A multi-level design strategy for supersonic missile inlet design is developed. The multi-level design strategy combines an e cient simple physical model analysis tool and a sophisticated CFD Navier-Stokes analysis tool. The e cient simple analysis tool is incorporated into the optimization loop and the sophisticated CFD analysis tool is used to verify, select and lter the nal design. The Genet...

High Performance Supersonic Missile Inlet Design Using Automated Optimization

Trajectory Optimization for a Multistage Launch Vehicle Using Nonlinear Programming

This work is an example of application of nonlinear programming to a problem of three-dimensional trajectory optimization for multistage launch vehicles for geostationary orbit missions. The main objective is to minimize fuel consumption or equivalently to maximize the payload. The launch vehicle considered here, Europa-II, consists of 5 thrust phases and 2 coast phases. Major parameters of the...

Multiple solutions of a nonlinear reactive transport model using least square pseudo-spectral collocation method

The recognition and the calculation of all branches of solutions of the nonlinear boundary value problems is difficult obviously. The complexity of this issue goes back to the being nonlinearity of the problem. Regarding this matter, this paper considers steady state reactive transport model which does not have exact closed-form solution and discovers existence of dual or triple solutions in so...

A Fast Immersed Boundary Fourier Pseudo-spectral Method for Simulation of the Incompressible Flows

Abstract   The present paper is devoted to implementation of the immersed boundary technique into the Fourier pseudo-spectral solution of the vorticity-velocity formulation of the two-dimensional incompressible Navier-Stokes equations. The immersed boundary conditions are implemented via direct modification of the convection and diffusion terms, and therefore, in contrast to some other similar ...