{"id":"https://openalex.org/W7224115463","doi":"https://doi.org/10.48550/arxiv.2610.37577","title":"A Systematic Assessment of Artificial Flame Thickening for Thermodiffusively Unstable Lean Hydrogen Flames in Homogeneous Isotropic Turbulence","display_name":"A Systematic Assessment of Artificial Flame Thickening for Thermodiffusively Unstable Lean Hydrogen Flames in Homogeneous Isotropic Turbulence","publication_year":2026,"publication_date":"2026-10-27","ids":{"openalex":"https://openalex.org/W7224115463","doi":"https://doi.org/10.48550/arxiv.2610.37577"},"language":"en","primary_location":{"id":"pmh:oai:arXiv.org:2610.37577","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2610.37577","pdf_url":"https://arxiv.org/pdf/2610.37577","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},"volume":null,"type":"preprint","indexed_in":["arxiv","datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://arxiv.org/pdf/2610.37577","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5051137962","display_name":"Max Schneider","orcid":"https://orcid.org/0000-0001-5166-6273","observed_orcids":["https://orcid.org/0000-0001-5166-6273"]},"institutions":[{"id":"https://openalex.org/I31512782","display_name":"Technische Universit\u00e4t Darmstadt","ror":"https://ror.org/05n911h24","country_code":"DE","type":"education","lineage":["https://openalex.org/I31512782"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Schneider, Max","raw_affiliation_strings":["Technical University of Darmstadt , Department of Mechanical Engineering , Simulation of Reactive Thermo-Fluid Systems , Otto-Berndt-Str. 2 , 64287 Darmstadt , Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Technical University of Darmstadt , Department of Mechanical Engineering , Simulation of Reactive Thermo-Fluid Systems , Otto-Berndt-Str. 2 , 64287 Darmstadt , Germany","institution_ids":["https://openalex.org/I31512782"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5106344763","display_name":"Vinzenz Schuh","orcid":"https://orcid.org/0009-0003-8706-1008","observed_orcids":["https://orcid.org/0009-0003-8706-1008"]},"institutions":[{"id":"https://openalex.org/I31512782","display_name":"Technische Universit\u00e4t Darmstadt","ror":"https://ror.org/05n911h24","country_code":"DE","type":"education","lineage":["https://openalex.org/I31512782"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Schuh, Vinzenz","raw_affiliation_strings":["Technical University of Darmstadt , Department of Mechanical Engineering , Simulation of Reactive Thermo-Fluid Systems , Otto-Berndt-Str. 2 , 64287 Darmstadt , Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Technical University of Darmstadt , Department of Mechanical Engineering , Simulation of Reactive Thermo-Fluid Systems , Otto-Berndt-Str. 2 , 64287 Darmstadt , Germany","institution_ids":["https://openalex.org/I31512782"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5020025303","display_name":"Felix Zijie Rong","orcid":"https://orcid.org/0000-0002-7837-0939","observed_orcids":["https://orcid.org/0000-0002-7837-0939"]},"institutions":[{"id":"https://openalex.org/I31512782","display_name":"Technische Universit\u00e4t Darmstadt","ror":"https://ror.org/05n911h24","country_code":"DE","type":"education","lineage":["https://openalex.org/I31512782"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Rong, Felix","raw_affiliation_strings":["Technical University of Darmstadt , Department of Mechanical Engineering , Simulation of Reactive Thermo-Fluid Systems , Otto-Berndt-Str. 2 , 64287 Darmstadt , Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Technical University of Darmstadt , Department of Mechanical Engineering , Simulation of Reactive Thermo-Fluid Systems , Otto-Berndt-Str. 2 , 64287 Darmstadt , Germany","institution_ids":["https://openalex.org/I31512782"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5056671876","display_name":"Driss Kaddar","orcid":"https://orcid.org/0000-0002-7812-4738","observed_orcids":["https://orcid.org/0000-0002-7812-4738"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Kaddar, Driss","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5058300776","display_name":"Andrew J. Aspden","orcid":"https://orcid.org/0000-0002-2970-4824","observed_orcids":["https://orcid.org/0000-0002-2970-4824"]},"institutions":[{"id":"https://openalex.org/I84884186","display_name":"Newcastle University","ror":"https://ror.org/01kj2bm70","country_code":"GB","type":"education","lineage":["https://openalex.org/I84884186"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Aspden, Andrew J.","raw_affiliation_strings":["School of Engineering , Newcastle University , Newcastle-Upon-Tyne , NE1 7RU , UK"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Engineering , Newcastle University , Newcastle-Upon-Tyne , NE1 7RU , UK","institution_ids":["https://openalex.org/I84884186"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5080007672","display_name":"T.L. Howarth","orcid":"https://orcid.org/0000-0002-7789-9742","observed_orcids":["https://orcid.org/0000-0002-7789-9742"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Howarth, Thomas L.","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5034190951","display_name":"Christian Hasse","orcid":"https://orcid.org/0000-0001-9333-0911","observed_orcids":["https://orcid.org/0000-0001-9333-0911"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Hasse, Christian","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5066943905","display_name":"Hendrik Nicolai","orcid":"https://orcid.org/0000-0002-0355-2252","observed_orcids":["https://orcid.org/0000-0002-0355-2252"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Nicolai, Hendrik","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":true,"cited_by_count":0,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10553","display_name":"Combustion and flame dynamics","score":0.9937000274658203,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10553","display_name":"Combustion and flame dynamics","score":0.9937000274658203,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10117","display_name":"Advanced Combustion Engine Technologies","score":0.003599999938160181,"subfield":{"id":"https://openalex.org/subfields/1507","display_name":"Fluid Flow and Transfer Processes"},"field":{"id":"https://openalex.org/fields/15","display_name":"Chemical Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10360","display_name":"Fluid Dynamics and Turbulent Flows","score":0.0010999999940395355,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/thermodiffusive-instability","display_name":"thermodiffusive instability","score":0.7559999823570251},{"id":"https://openalex.org/keywords/homogeneous-isotropic-turbulence","display_name":"homogeneous isotropic turbulence","score":0.8539999723434448},{"id":"https://openalex.org/keywords/flame-speed","display_name":"flame speed","score":0.6610000133514404},{"id":"https://openalex.org/keywords/karlovitz-number","display_name":"Karlovitz number","score":0.8730000257492065},{"id":"https://openalex.org/keywords/damkohler-number","display_name":"Damk\u00f6hler number","score":0.9980000257492065},{"id":"https://openalex.org/keywords/flame-wrinkling","display_name":"flame wrinkling","score":0.925000011920929},{"id":"https://openalex.org/keywords/efficiency-correction","display_name":"efficiency correction","score":0.6470000147819519},{"id":"https://openalex.org/keywords/flame-turbulence-interaction","display_name":"flame-turbulence interaction","score":0.6919999718666077}],"concepts":[{"id":"https://openalex.org/C196558001","wikidata":"https://www.wikidata.org/wiki/Q190132","display_name":"Turbulence","level":2,"score":0.6983000040054321},{"id":"https://openalex.org/C184050105","wikidata":"https://www.wikidata.org/wiki/Q273163","display_name":"Isotropy","level":2,"score":0.6434000134468079},{"id":"https://openalex.org/C57879066","wikidata":"https://www.wikidata.org/wiki/Q41217","display_name":"Mechanics","level":1,"score":0.6269000172615051},{"id":"https://openalex.org/C2779251355","wikidata":"https://www.wikidata.org/wiki/Q1626189","display_name":"Homogeneous isotropic turbulence","level":5,"score":0.599399983882904},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.5855000019073486},{"id":"https://openalex.org/C129474609","wikidata":"https://www.wikidata.org/wiki/Q4563566","display_name":"Premixed flame","level":4,"score":0.5806999802589417},{"id":"https://openalex.org/C99844830","wikidata":"https://www.wikidata.org/wiki/Q102441924","display_name":"Scaling","level":2,"score":0.5713000297546387},{"id":"https://openalex.org/C512968161","wikidata":"https://www.wikidata.org/wiki/Q556","display_name":"Hydrogen","level":2,"score":0.5662999749183655},{"id":"https://openalex.org/C207870545","wikidata":"https://www.wikidata.org/wiki/Q6481915","display_name":"Laminar flame speed","level":5,"score":0.5460000038146973},{"id":"https://openalex.org/C2779559920","wikidata":"https://www.wikidata.org/wiki/Q911138","display_name":"Thickening","level":2,"score":0.5343999862670898},{"id":"https://openalex.org/C2778269189","wikidata":"https://www.wikidata.org/wiki/Q5457178","display_name":"Flame structure","level":4,"score":0.5273000001907349},{"id":"https://openalex.org/C66882249","wikidata":"https://www.wikidata.org/wiki/Q169336","display_name":"Homogeneous","level":2,"score":0.49950000643730164},{"id":"https://openalex.org/C105923489","wikidata":"https://www.wikidata.org/wiki/Q133235","display_name":"Combustion","level":2,"score":0.49320000410079956},{"id":"https://openalex.org/C177800056","wikidata":"https://www.wikidata.org/wiki/Q899502","display_name":"Flammability limit","level":3,"score":0.43869999051094055},{"id":"https://openalex.org/C55477048","wikidata":"https://www.wikidata.org/wiki/Q3561224","display_name":"Flame speed","level":5,"score":0.41339999437332153},{"id":"https://openalex.org/C204323151","wikidata":"https://www.wikidata.org/wiki/Q905424","display_name":"Range (aeronautics)","level":2,"score":0.34360000491142273},{"id":"https://openalex.org/C97355855","wikidata":"https://www.wikidata.org/wiki/Q11473","display_name":"Thermodynamics","level":1,"score":0.33500000834465027},{"id":"https://openalex.org/C6506403","wikidata":"https://www.wikidata.org/wiki/Q909245","display_name":"Diffusion flame","level":4,"score":0.3149999976158142},{"id":"https://openalex.org/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","level":1,"score":0.275299996137619},{"id":"https://openalex.org/C18533594","wikidata":"https://www.wikidata.org/wiki/Q1227572","display_name":"Direct numerical simulation","level":4,"score":0.2718000113964081},{"id":"https://openalex.org/C76563973","wikidata":"https://www.wikidata.org/wiki/Q189452","display_name":"Laminar flow","level":2,"score":0.25839999318122864},{"id":"https://openalex.org/C117896860","wikidata":"https://www.wikidata.org/wiki/Q11376","display_name":"Acceleration","level":2,"score":0.2533000111579895},{"id":"https://openalex.org/C2992458059","wikidata":"https://www.wikidata.org/wiki/Q4563566","display_name":"Flame front","level":3,"score":0.25270000100135803},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.25060001015663147}],"mesh":[],"locations_count":2,"locations":[{"id":"pmh:oai:arXiv.org:2610.37577","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2610.37577","pdf_url":"https://arxiv.org/pdf/2610.37577","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},{"id":"doi:10.48550/arxiv.2610.37577","doi":"https://doi.org/10.48550/arxiv.2610.37577","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2610.37577","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Preprint"}],"best_oa_location":{"id":"pmh:oai:arXiv.org:2610.37577","doi":null,"is_oa":true,"landing_page_url":"https://arxiv.org/abs/2610.37577","pdf_url":"https://arxiv.org/pdf/2610.37577","source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"text"},"sustainable_development_goals":[{"score":0.5690000057220459,"id":"https://metadata.un.org/sdg/7","display_name":"Affordable and clean energy"}],"study_designs":[],"awards":[{"id":"https://openalex.org/G6438768042","display_name":"Wechselwirkung von Wasserstoffflammen und smarten effusionsgek\u00fchlten GasturbinenBrennkammerw\u00e4nden","funder_award_id":"523792378","funder_id":"https://openalex.org/F4320320879","funder_display_name":"Deutsche Forschungsgemeinschaft"},{"id":"https://openalex.org/G67580503","display_name":"Kr\u00fcmmungseffekte in laminarer und turbulenter nichtvorgemischter Verbrennung","funder_award_id":"310695286","funder_id":"https://openalex.org/F4320320879","funder_display_name":"Deutsche Forschungsgemeinschaft"}],"funders":[{"id":"https://openalex.org/F4320320879","display_name":"Deutsche Forschungsgemeinschaft","ror":"https://ror.org/018mejw64"},{"id":"https://openalex.org/F4320331625","display_name":"Gauss Centre for Supercomputing","ror":"https://ror.org/0585fsj26"},{"id":"https://openalex.org/F4320334593","display_name":"Natural Sciences and Engineering Research Council of Canada","ror":"https://ror.org/01h531d29"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W7224115463.pdf","grobid_xml":"https://content.openalex.org/works/W7224115463.grobid-xml"},"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W7125512000","https://openalex.org/W4401386317","https://openalex.org/W2946216200","https://openalex.org/W4404885025","https://openalex.org/W3107754720","https://openalex.org/W4405858904","https://openalex.org/W7011986173","https://openalex.org/W2770255443","https://openalex.org/W6977240726","https://openalex.org/W4401629798"],"abstract_inverted_index":{"The":[0],"Artificially":[1],"Thickened":[2],"Flame":[3],"(ATF)":[4],"approach":[5],"is":[6,194],"widely":[7],"used":[8,75],"to":[9,76,100,111,161,196],"render":[10],"premixed":[11,63],"flames":[12,53,64],"resolvable":[13],"on":[14,30,35,41,138,186,209],"coarse":[15],"computational":[16],"meshes,":[17],"but":[18],"thickening":[19,34,168],"alters":[20],"their":[21],"interaction":[22],"with":[23,69,159],"turbulence.":[24],"While":[25],"considerable":[26],"research":[27],"has":[28],"focused":[29],"the":[31,42,81,87,116,120,123,129,139,172,176,183,198,204,210],"effects":[32,82,137],"of":[33,62,83,182],"turbulence-induced":[36],"flame":[37,45,88,126,132,140,148,151,174,200],"wrinkling,":[38,133],"its":[39,94,106],"influence":[40],"mean":[43,124],"local":[44,125,147],"propagation":[46,149],"speed":[47],"in":[48,65,135,145],"turbulent,":[49],"thermodiffusively":[50],"unstable":[51],"hydrogen":[52],"remains":[54],"poorly":[55],"understood.":[56],"More":[57],"than":[58],"200":[59],"flame-resolved":[60],"simulations":[61],"homogeneous":[66],"isotropic":[67],"turbulence":[68],"detailed":[70],"chemistry":[71],"and":[72,79,150,163,213],"transport":[73],"are":[74],"systematically":[77],"isolate":[78],"quantify":[80],"artificial":[84],"thickening.":[85],"Thickening":[86],"by":[89],"a":[90,190],"factor":[91,206],"$F$":[92,170],"increases":[93],"effective":[95,107,211],"flame-scale":[96],"Karlovitz":[97,212],"number":[98,109],"according":[99,110],"$Ka_{\\mathrm{f}}^F":[101],"=":[102,113],"Ka_{\\mathrm{f}}\\sqrt{F}$,":[103],"while":[104],"decreasing":[105],"Damk\u00f6hler":[108,214],"$Da_{\\mathrm{f}}^F":[112],"Da_{\\mathrm{f}}/F$.":[114],"In":[115],"regime":[117],"considered":[118],"here,":[119],"former":[121],"enhances":[122],"speed,":[127],"whereas":[128],"latter":[130],"reduces":[131],"resulting":[134],"opposing":[136],"consumption":[141,201],"speed;":[142],"hence,":[143],"changes":[144],"both":[146],"area":[152],"must":[153,217],"be":[154,218],"accounted":[155],"for.":[156],"Simulations":[157],"matched":[158],"respect":[160],"$Ka_{\\mathrm{f}}^F$":[162],"$Da_{\\mathrm{f}}^F$":[164],"collapse":[165],"across":[166],"different":[167],"factors":[169],"until":[171],"thickened":[173],"approaches":[175],"integral":[177],"or":[178],"geometric":[179],"length":[180],"scales":[181],"configuration.":[184],"Based":[185],"these":[187],"scaling":[188],"relations,":[189],"self-consistent":[191],"efficiency":[192,205],"correction":[193],"proposed":[195],"recover":[197],"unthickened":[199],"speed.":[202],"Since":[203],"feeds":[207],"back":[208],"numbers,":[215],"it":[216],"determined":[219],"implicitly.":[220]},"counts_by_year":[],"updated_date":"2026-11-01T11:40:01.658920","created_date":"2026-10-29T00:00:00"}