{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,13]],"date-time":"2026-05-13T17:33:13Z","timestamp":1778693593052,"version":"3.51.4"},"reference-count":46,"publisher":"AIP Publishing","issue":"5","funder":[{"DOI":"10.13039\/501100001659","name":"Deutsche Forschungsgemeinschaft","doi-asserted-by":"publisher","award":["FI 1712"],"award-info":[{"award-number":["FI 1712"]}],"id":[{"id":"10.13039\/501100001659","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001659","name":"Deutsche Forschungsgemeinschaft","doi-asserted-by":"publisher","award":["KE 1715\/8-1"],"award-info":[{"award-number":["KE 1715\/8-1"]}],"id":[{"id":"10.13039\/501100001659","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001659","name":"Deutsche Forschungsgemeinschaft","doi-asserted-by":"publisher","award":["SCHU 1369\/27-1"],"award-info":[{"award-number":["SCHU 1369\/27-1"]}],"id":[{"id":"10.13039\/501100001659","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["pubs.aip.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2018,5,1]]},"abstract":"<jats:p>Autoignition of fuel\/air mixtures is a determining process in internal combustion engines. Ignition can start either homogeneously in the gas phase after compression or in the vicinity of hot surfaces. While ignition properties of commercial fuels are conventionally described by a single quantity (octane number), it is known that some fuels have a varying propensity to the two processes. We present a new experimental concept that generates well-controlled temperature inhomogeneities in the shock-heated gases of a high-pressure shock tube. A shock-heated reactive mixture is brought into contact with a heated silicon nitride ceramic glow plug. The glow-plug temperature can be set up to 1200 K, higher than the post-reflected-shock gas temperatures (650\u20131050 K). High-repetition-rate chemiluminescence imaging is used to localize the onset of ignition in the vicinity of the hot surface. In experiments with ethanol, the results show that in most cases under shock-heated conditions, the ignition begins inhomogeneously in the vicinity of the glow plug and is favored because of the high wall temperature. Additionally, the interaction of geometry, external heating, and gas-dynamic effects was investigated by numerical simulations of the shock wave in a non-reactive flow.<\/jats:p>","DOI":"10.1063\/1.5017275","type":"journal-article","created":{"date-parts":[[2018,5,18]],"date-time":"2018-05-18T14:00:38Z","timestamp":1526652038000},"update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":2,"title":["Methodology for the investigation of ignition near hot surfaces in a high-pressure shock tube"],"prefix":"10.1063","volume":"89","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8304-2470","authenticated-orcid":false,"given":"P.","family":"Niegemann","sequence":"first","affiliation":[{"name":"Institute for Combustion and Gas Dynamics\u2013Reactive Fluids, University of Duisburg-Essen 1 , 47048 Duisburg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"M.","family":"Fikri","sequence":"additional","affiliation":[{"name":"Institute for Combustion and Gas Dynamics\u2013Reactive Fluids, University of Duisburg-Essen 1 , 47048 Duisburg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"I.","family":"Wlokas","sequence":"additional","affiliation":[{"name":"Institute for Combustion and Gas Dynamics\u2013Fluid Dynamics, University of Duisburg-Essen 2 , 47048 Duisburg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"M.","family":"R\u00f6der","sequence":"additional","affiliation":[{"name":"Institute for Combustion and Gas Dynamics\u2013Reactive Fluids, University of Duisburg-Essen 1 , 47048 Duisburg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6879-4826","authenticated-orcid":false,"given":"C.","family":"Schulz","sequence":"additional","affiliation":[{"name":"Institute for Combustion and Gas Dynamics\u2013Reactive Fluids, University of Duisburg-Essen 1 , 47048 Duisburg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"317","published-online":{"date-parts":[[2018,5,18]]},"reference":[{"key":"2023080420043041300_c1"},{"key":"2023080420043041300_c2","doi-asserted-by":"publisher","first-page":"485","DOI":"10.1243\/14680874jer609","volume":"11","year":"2010","journal-title":"Int. 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