Speaker
Description
We present a reinvestigation of the Galileo 1995 Jupiter entry, where we attempt to reinvestigate the question of the excessive heating at the shoulder, which is postulated to occur due to radiative heating.
We consider two improvements to the radiative model: H2 molecular systems contributions to the plasma emission and absorption coefficients are accounted for, and a ray-tracing model for wall radiative heating is also considered, as opposed to the more traditional tangent slab approach.
Calculations have been carried out using the Software Package for Aerodynamics, Radiation, and Kinetics (SPARK). a 1D Axysymmetric model has been considered, and a high-temperature, multicomponent transport description has been developed, using the Gupta--Yos mixing rule adapted by Bruno for the case of H2/He mixtures. The kinetic model is adapted from Reynier. The grid has been carefully tailored at the shoulder, so as to allow for ray-tracing simulations in this region.
Besides the reference calulation which will be compared against other data from the literature, as well as the actual fluxes derived from the Galileo probe TPS recession data, this work will present a few parametric sensitivity studies, including but not limited to: ray-tracing vs. tangent slab; atomic vs. molecular radiation; discrete vs. continuum radiation, etc...
Finally a solution for TC2C-ShockTube-Saturn will be presented, using the SPARK code and the spectral database from this work.
Summary
A CFD + Ray-Tracing radiative transfer solution for the 1995 Jupiter entry of Galileo + a solution for TC2C-ShockTube-Saturn
