Intercalibration Results. Prediction of Density Degradation of Low Density Material Using the CHALEUR Code
Start Date
3-3-2011 9:30 AM
Description
The Sandia developed CHALEUR code has been exercised as part of a NASA/Air Force/Sandia code comparison exercise. The material was specified to be a low density thermal protection material that was developed by NASA with properties being available in the open literature. The CHALEUR code is one dimensional with 2nd order spatial discretization and either 1st or 2nd order time integration with Arrhenius decomposition kinetics. The code was exercised both with and without the Darcy flow options. Predictions were made for temperature and solid density as a function of time and results compared favorably with reference results provided by the conference organizers. Because of the specified problem parameters, there was negligible pressure rise inside the material. Consequently, the results with and without Darcy flow were almost identical.
Intercalibration Results. Prediction of Density Degradation of Low Density Material Using the CHALEUR Code
The Sandia developed CHALEUR code has been exercised as part of a NASA/Air Force/Sandia code comparison exercise. The material was specified to be a low density thermal protection material that was developed by NASA with properties being available in the open literature. The CHALEUR code is one dimensional with 2nd order spatial discretization and either 1st or 2nd order time integration with Arrhenius decomposition kinetics. The code was exercised both with and without the Darcy flow options. Predictions were made for temperature and solid density as a function of time and results compared favorably with reference results provided by the conference organizers. Because of the specified problem parameters, there was negligible pressure rise inside the material. Consequently, the results with and without Darcy flow were almost identical.