{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,22]],"date-time":"2026-01-22T20:11:25Z","timestamp":1769112685786,"version":"3.49.0"},"reference-count":26,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2025,2,15]],"date-time":"2025-02-15T00:00:00Z","timestamp":1739577600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"European Union","award":["871072"],"award-info":[{"award-number":["871072"]}]},{"name":"European Union","award":["0124U004371"],"award-info":[{"award-number":["0124U004371"]}]},{"name":"European Union Assistance Instrument","award":["871072"],"award-info":[{"award-number":["871072"]}]},{"name":"European Union Assistance Instrument","award":["0124U004371"],"award-info":[{"award-number":["0124U004371"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Computation"],"abstract":"<jats:p>This study investigates the combustion behavior of hydrogen\u2013air mixtures in a closed chamber at reduced initial pressure, focusing on applications in thermal energy methods (TEMs) for plastic processing. The primary goal was to develop and validate a numerical model capable of accurately predicting pressure and temperature profiles over time. By employing ANSYS Fluent 2024 R2 and the GRI-Mech 3.0 mechanism, a detailed combustion model was constructed and validated against experimental data, adhering to the standards outlined in EN 15967: 2011. Subsequent simulations under low-pressure conditions revealed consistent flame front propagation and turbulent flow patterns, crucial factors for achieving stable temperature distributions and optimal part placement. This validated model provides a valuable tool for predicting combustion effects, enhancing safety, and optimizing the performance of hydrogen-fueled TEM processes. By leveraging hydrogen as a clean and sustainable energy source, this research contributes to a more environmentally friendly approach to plastic processing. Future studies will delve into the combustion of hydrogen\u2013air mixtures in the presence of plastic parts to further refine the efficiency and effectiveness of TEM processes.<\/jats:p>","DOI":"10.3390\/computation13020054","type":"journal-article","created":{"date-parts":[[2025,2,17]],"date-time":"2025-02-17T10:26:12Z","timestamp":1739787972000},"page":"54","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Numerical Study and Model Validation of Low-Pressure Hydrogen\u2013Air Combustion in a Closed Vessel"],"prefix":"10.3390","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8058-8649","authenticated-orcid":false,"given":"Oleh","family":"Tryfonov","sequence":"first","affiliation":[{"name":"Kharkiv Aviation Institute, National Aerospace University, Vadim Manka, str. 17, 61070 Kharkiv, Ukraine"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3224-1450","authenticated-orcid":false,"given":"Andrzej","family":"Teodorczyk","sequence":"additional","affiliation":[{"name":"Institute of Heat Engineering, Faculty of Power and Aeronautical Engineering, Warsaw University of Technology, Nowowiejska 21\/25, 00-665 Warsaw, Poland"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1356-5831","authenticated-orcid":false,"given":"Olga","family":"Shypul","sequence":"additional","affiliation":[{"name":"Kharkiv Aviation Institute, National Aerospace University, Vadim Manka, str. 17, 61070 Kharkiv, Ukraine"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7009-9945","authenticated-orcid":false,"given":"Wojciech","family":"Rudy","sequence":"additional","affiliation":[{"name":"Institute of Heat Engineering, Faculty of Power and Aeronautical Engineering, Warsaw University of Technology, Nowowiejska 21\/25, 00-665 Warsaw, Poland"}]},{"given":"Vadym","family":"Garin","sequence":"additional","affiliation":[{"name":"Kharkiv Aviation Institute, National Aerospace University, Vadim Manka, str. 17, 61070 Kharkiv, Ukraine"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4047-0192","authenticated-orcid":false,"given":"Vitalii","family":"Myntiuk","sequence":"additional","affiliation":[{"name":"Kharkiv Aviation Institute, National Aerospace University, Vadim Manka, str. 17, 61070 Kharkiv, Ukraine"}]},{"given":"Denys","family":"Tkachenko","sequence":"additional","affiliation":[{"name":"Kharkiv Aviation Institute, National Aerospace University, Vadim Manka, str. 17, 61070 Kharkiv, Ukraine"}]}],"member":"1968","published-online":{"date-parts":[[2025,2,15]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Li, S., Li, X., Jin, H., Liu, Y., and Wu, Y. 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