Parametric Scaling Model for Nongeosynchronous Communications Satellites Philip

The flow solver, UBIFLOW, was developed with the goal of producing efficient, accurate flow solution software capable of handling complex configurations. In the work presented here, UBIFLOW’s ability to simulate the flowfield of complex configurations was tested on a couple of launch vehicles. The predictive capability of UBIFLOW was demonstrated through the use of sample launch configurations for which experimental data were available. Computational results were presented for these high-incidence-angle configurations in the transonic speed regime to evaluate the accuracy and reliability of the UBIFLOW code. Considering the assumptions in the viscous model used in this study, that is, the thin-layer assumption and the simple algebraic turbulence model, the agreement with experimental data is thought to be excellent for the pitch simulations and good for yaw simulations.