Abstract
A material response code is strongly coupled with a radiative transfer equation (RTE) to evaluate the effect of a spectrally resolved heat flux on the thermal response of a heat shield. A P1 approximation model of RTE is used to account for radiation heat transfer within the material. First, the RTE model is verified by comparing the numerical results with the analytical solution. Next, the coupling scheme is verified by comparing the temperature histories computed by the pure conduction scheme with the ones computed by conduction coupled with radiative emission. The verification study is conducted using test cases from the literature (radiant heating, arc jet heating, and space shuttle entry) as well as on a 3D Block, a 2D IsoQ sample, and the Stardust Return Capsule. The verification results are satisfactory for all cases. Thus, the verification results indicate that the coupling approach can accurately simulate the thermal response of the material. The coupling scheme was then used to simulate a laser heating experiment that studied the impact of spectral radiative heat transfer on ablative material. The results from the laser ablation simulations exhibit a behavior analogous to the experimental observations, indicating the importance of spectral radiative flux on the material response.
Original language | English |
---|---|
Pages (from-to) | 20-35 |
Number of pages | 16 |
Journal | Journal of Thermophysics and Heat Transfer |
Volume | 38 |
Issue number | 1 |
DOIs | |
State | Published - Jan 2024 |
Bibliographical note
Publisher Copyright:© 2023 by Raghava S. C. Davuluri, Rui Fu, Kaveh A. Tagavi, and Alexandre Martin.
Funding
Financial support for this work was provided by the NASA SpaceTech—REDDI—2018—ESI grant 80NSSC19K0218. The authors would also like to thank the University of Kentucky Center for Computational Sciences and Information Technology Services Research Computing for their support and use of the Lipscomb Compute Cluster and associated research computing resources. The first author would also like to thank Scott Fowler (Tecplot, Inc.) for assisting with images and animations. Financial support for this work was provided by the NASA Space-Tech—REDDI—2018—ESI grant 80NSSC19K0218. The authors would also like to thank the University of Kentucky Center for Computational Sciences and Information Technology Services Research Computing for their support and use of the Lipscomb Compute Cluster and associated research computing resources. The first author would also like to thank Scott Fowler (Tecplot, Inc.) for assisting with images and animations.
Funders | Funder number |
---|---|
University of Kentucky Medical Center | |
National Aeronautics and Space Administration | |
Electro Scientific Industries, Inc. | 80NSSC19K0218 |
ASJC Scopus subject areas
- Condensed Matter Physics