{"id":23266,"date":"2025-10-26T12:11:53","date_gmt":"2025-10-26T12:11:53","guid":{"rendered":"https:\/\/aerospacerepository.org\/?p=23266"},"modified":"2025-10-26T12:11:54","modified_gmt":"2025-10-26T12:11:54","slug":"numerical-analysis-on-radiation-effects-in-shock-tunnel-experiments","status":"publish","type":"post","link":"https:\/\/aerospacerepository.org\/index.php\/2025\/10\/26\/numerical-analysis-on-radiation-effects-in-shock-tunnel-experiments\/","title":{"rendered":"Numerical Analysis on Radiation Effects in Shock Tunnel Experiments"},"content":{"rendered":"\n<p><strong>Chiara AMATO, Tim HORCHLER, Divek SURUJHLAL, Tobias ECKER, Giannino PONCHIO CAMILLO<\/strong><\/p>\n\n\n\n<p><strong>DOI Number: N\/A<\/strong><\/p>\n\n\n\n<p><strong>Conference number: HiSST-2025-017<\/strong><\/p>\n\n\n\n<p>This study investigates radiative heat flux contributions in high-enthalpy shock tunnel experiments through a combined experimental and numerical approach. Experiments were conducted in the High Enthalpy Shock Tunnel G\u00f6ttingen (HEG) using a flat-faced cylinder equipped with heat flux and radiation sensors, while Computational Fluid Dynamics (CFD) simulations were performed with the DLR TAU solver and the next-generation HyperCODA code. Radiation modeling employed both infinite-slab and photon Monte Carlo methods in conjunction with the PARADE database to quantify contributions from shock-layer emission and hot-gas radiation near the nozzle throat. The results indicate that shock-induced radiation accounts for approximately 2% of the convective heat flux at the stagnation point, whereas nozzle-throat contributions are strongly reduced by wall absorption effects<br>and remain of secondary importance. Additional modeling of iron particle radiation suggests that suspended contaminants may dominate radiative heating, potentially explaining the long-observed heat flux anomalies in high-enthalpy facilities. The work confirms the consistency of HyperCODA with TAU for high-enthalpy conditions and highlights the need for further diagnostics of particulate contamination in shock tunnels.<\/p>\n\n\n\n<p><a href=\"https:\/\/aerospacerepository.org\/wp-content\/uploads\/2025\/10\/HISST2025_17_paper.pdf\">Read the full paper here<\/a><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Chiara AMATO, Tim HORCHLER, Divek SURUJHLAL, Tobias ECKER, Giannino PONCHIO CAMILLO<\/b><\/p>\n<p>DOI Number: N\/A<\/p>\n<p>Conference number: HiSST-2025-017<\/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":[442,3747,459,3749,3748],"class_list":["post-23266","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-cfd","tag-comparative-study","tag-hypersonic-flow","tag-radiation-investigation","tag-shock-tube-experiment","category-993","category-3367","category-3361","description-off"],"_links":{"self":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/23266","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=23266"}],"version-history":[{"count":1,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/23266\/revisions"}],"predecessor-version":[{"id":23268,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/posts\/23266\/revisions\/23268"}],"wp:attachment":[{"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/media?parent=23266"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/categories?post=23266"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aerospacerepository.org\/index.php\/wp-json\/wp\/v2\/tags?post=23266"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}