The Maneuvers and Signatures of Interacting Vehicles Toolkit (MASIV)

As one of the key developers of SOCRATES-P, Spectral Sciences, Inc. (SSI) proposes to extend the SOCRATES-P DSMC flow, chemistry, and radiation solver with a dynamics package, the Maneuvers and Signatures of Interacting Vehicles Toolkit (MASIV). The Toolkit will enable high-fidelity calculation of transient missile signatures at high altitudes (> 90 km) by integrating a 6DOF (Degrees Of Freedom) trajectory model with the SOCRATES-P solver. MASIV uses several innovations to describe multiple moving bodies and thrust sources while retaining the high simulation fidelity of SOCRATES-P. For Phase I, we intend to implement these innovations and demonstrate MASIV with two linearly accelerating bodies containing plumes. These calculations will include computation of gaseous forces on the solid bodies and associated heating of solid body surfaces and will result in time dependent spatial and spectral signature predictions. For Phases II/III, we will extend our efforts to include gaseous forces on solid bodies within the 6DOF treatment and the time-evolving continuum flowfield/DSMC coupling where necessary. We will perform validation studies on a large number of scenarios of interest, including complex motions such as solid body articulations, and multiple complex bodies each with their own accelerations.