{"id":22666,"date":"2025-10-22T14:49:18","date_gmt":"2025-10-22T14:49:18","guid":{"rendered":"https:\/\/aerospacerepository.org\/?p=22666"},"modified":"2025-10-22T14:49:19","modified_gmt":"2025-10-22T14:49:19","slug":"numerical-methods-for-pyrolysis-thermal-coupling-of-heat-shield-degradation-during-hypersonic-re-entry","status":"publish","type":"post","link":"https:\/\/aerospacerepository.org\/index.php\/2025\/10\/22\/numerical-methods-for-pyrolysis-thermal-coupling-of-heat-shield-degradation-during-hypersonic-re-entry\/","title":{"rendered":"Numerical methods for pyrolysis-thermal coupling of heat shield degradation during hypersonic re-entry"},"content":{"rendered":"\n<p><strong>Alexis CAS, Celine BARANGER, H\u00e9lo\u00efse BEAUGENDRE, Simon PELUCHON<\/strong><\/p>\n\n\n\n<p><strong>DOI Number: N\/A<\/strong><\/p>\n\n\n\n<p><strong>Conference number: HiSST-2025-236<\/strong><\/p>\n\n\n\n<p>During atmospheric hypersonic re-entry, the heat distribution within the thermal protection system (TPS) is dampened by the in-depth chemical degradation of materials &#8211; called pyrolysis -, and by a surface physico-chemical degradation &#8211; called ablation. The aim of this work is to investigate the numerical tools used to solve the thermal pyrolysis response of heat shield. First, an overview of macroscopic modeling of pyrolysis will be done. Arrhenius laws are employed in the modeling of density variation. Swelling or shrinkage are taken into account as a consequence of material degradation. This analysis will explore a number of numerical methods, with a focus on conservation properties and method efficiency. Finally, Henderson\u2019s experimental test case is studied, in order to validate and compare the numerical methods. The simulation results are in reasonable agreement with the experimental data. Some numerical methods result in a trade-off between mass or energy conservation and a faster computation time.<\/p>\n\n\n\n<p><a href=\"https:\/\/aerospacerepository.org\/wp-content\/uploads\/2025\/10\/HISST2025_236_paper.pdf\">Read the full paper here<\/a><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Alexis CAS, Celine BARANGER, H\u00e9lo\u00efse BEAUGENDRE, Simon PELUCHON<\/b><\/p>\n<p>DOI Number: N\/A<\/p>\n<p>Conference number: HiSST-2025-236<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[993,3367,3361],"tags":[3534,3536,3535,3533],"class_list":["post-22666","post","type-post","status-publish","format-standard","hentry","category-events","category-high-speed-aerodynamics-and-aerothermodynamics-with-application-to-hypersonic-regimes","category-1-hisst-2025","tag-conservation-laws","tag-domain-deformations","tag-numerical-resolution","tag-pyrolysis-model","category-993","category-3367","category-3361","description-off"],"_links":{"self":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/22666","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/comments?post=22666"}],"version-history":[{"count":1,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/22666\/revisions"}],"predecessor-version":[{"id":22668,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/22666\/revisions\/22668"}],"wp:attachment":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/media?parent=22666"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/categories?post=22666"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/tags?post=22666"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}