Trajectory-based heating analysis of galileo probe entry flowfield with radiation and ablation

Shingo Matsuyama, Naofumi Ohnishi, Akihiro Sasoh, Keisuke Sawada

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


A trajectory-based heating analysis of Galileo probe entry flowfield is attempted to reproduce the heat shield recession data obtained during the entry flight. The mass conservation equations for H2-He mixture and ablation product gas are employed and solved by assuming thermochemical equilibrium. The ablation process is assumed to be quasi-steady and coupled with flowfield calculation. The absorption coefficients of a gas are calculated by multi-band model having 2440 wavelength points. One dimensional radiative transfer calculation using tangent- slab approximation is employed. Park's Injection- induced turbulence model is employed to account for enhanced turbulent effect in the frustum region. The present calculation overestimates heat shield recession for the entire forebody compared with the flight data. However, surface recession histories at the frustum region show fair agreement up to the trajectory point prior to the peak heating point.

Original languageEnglish
Title of host publication36th AIAA Thermophysics Conference
Publication statusPublished - 2003
Event36th AIAA Thermophysics Conference 2003 - Orlando, FL, United States
Duration: 2003 Jun 232003 Jun 26

Publication series

Name36th AIAA Thermophysics Conference


Conference36th AIAA Thermophysics Conference 2003
Country/TerritoryUnited States
CityOrlando, FL


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