{"id":"https://openalex.org/W4407157478","doi":"https://doi.org/10.1016/j.cpc.2025.109532","title":"uniGasFoam: A particle-based OpenFOAM solver for multiscale rarefied gas flows","display_name":"uniGasFoam: A particle-based OpenFOAM solver for multiscale rarefied gas flows","publication_year":2025,"publication_date":"2025-02-05","ids":{"openalex":"https://openalex.org/W4407157478","doi":"https://doi.org/10.1016/j.cpc.2025.109532"},"language":"en","primary_location":{"id":"doi:10.1016/j.cpc.2025.109532","is_oa":true,"landing_page_url":"https://doi.org/10.1016/j.cpc.2025.109532","pdf_url":null,"source":{"id":"https://openalex.org/S142305363","display_name":"Computer Physics Communications","issn_l":"0010-4655","issn":["0010-4655","1879-2944"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Computer Physics Communications","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"hybrid","oa_url":"https://doi.org/10.1016/j.cpc.2025.109532","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5052549194","display_name":"Nikos Vasileiadis","orcid":"https://orcid.org/0000-0002-5096-3089"},"institutions":[{"id":"https://openalex.org/I98677209","display_name":"University of Edinburgh","ror":"https://ror.org/01nrxwf90","country_code":"GB","type":"education","lineage":["https://openalex.org/I98677209"]}],"countries":["GB"],"is_corresponding":true,"raw_author_name":"N. Vasileiadis","raw_affiliation_strings":["School of Engineering, Institute of Multiscale Thermofluids, University of Edinburgh, Edinburgh EH9 3FB, United Kingdom"],"raw_orcid":"https://orcid.org/0000-0002-5096-3089","affiliations":[{"raw_affiliation_string":"School of Engineering, Institute of Multiscale Thermofluids, University of Edinburgh, Edinburgh EH9 3FB, United Kingdom","institution_ids":["https://openalex.org/I98677209"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5004001989","display_name":"Giorgos Tatsios","orcid":"https://orcid.org/0000-0002-9005-6272"},"institutions":[{"id":"https://openalex.org/I98677209","display_name":"University of Edinburgh","ror":"https://ror.org/01nrxwf90","country_code":"GB","type":"education","lineage":["https://openalex.org/I98677209"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"G. Tatsios","raw_affiliation_strings":["School of Engineering, Institute of Multiscale Thermofluids, University of Edinburgh, Edinburgh EH9 3FB, United Kingdom"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Engineering, Institute of Multiscale Thermofluids, University of Edinburgh, Edinburgh EH9 3FB, United Kingdom","institution_ids":["https://openalex.org/I98677209"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5049776142","display_name":"Craig White","orcid":"https://orcid.org/0000-0002-8208-5049"},"institutions":[{"id":"https://openalex.org/I7882870","display_name":"University of Glasgow","ror":"https://ror.org/00vtgdb53","country_code":"GB","type":"education","lineage":["https://openalex.org/I7882870"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"C. White","raw_affiliation_strings":["James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, United Kingdom"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, United Kingdom","institution_ids":["https://openalex.org/I7882870"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5003019025","display_name":"Duncan A. Lockerby","orcid":"https://orcid.org/0000-0001-5232-7986"},"institutions":[{"id":"https://openalex.org/I39555362","display_name":"University of Warwick","ror":"https://ror.org/01a77tt86","country_code":"GB","type":"education","lineage":["https://openalex.org/I39555362"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"D.A. Lockerby","raw_affiliation_strings":["School of Engineering, University of Warwick, Coventry CV4 7AL, United Kingdom"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Engineering, University of Warwick, Coventry CV4 7AL, United Kingdom","institution_ids":["https://openalex.org/I39555362"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5074932761","display_name":"Matthew K. Borg","orcid":"https://orcid.org/0000-0002-7740-1932"},"institutions":[{"id":"https://openalex.org/I98677209","display_name":"University of Edinburgh","ror":"https://ror.org/01nrxwf90","country_code":"GB","type":"education","lineage":["https://openalex.org/I98677209"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"M.K. Borg","raw_affiliation_strings":["School of Engineering, Institute of Multiscale Thermofluids, University of Edinburgh, Edinburgh EH9 3FB, United Kingdom"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Engineering, Institute of Multiscale Thermofluids, University of Edinburgh, Edinburgh EH9 3FB, United Kingdom","institution_ids":["https://openalex.org/I98677209"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5087345400","display_name":"Livio Gibelli","orcid":"https://orcid.org/0000-0002-0104-828X"},"institutions":[{"id":"https://openalex.org/I98677209","display_name":"University of Edinburgh","ror":"https://ror.org/01nrxwf90","country_code":"GB","type":"education","lineage":["https://openalex.org/I98677209"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"L. Gibelli","raw_affiliation_strings":["School of Engineering, Institute of Multiscale Thermofluids, University of Edinburgh, Edinburgh EH9 3FB, United Kingdom"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Engineering, Institute of Multiscale Thermofluids, University of Edinburgh, Edinburgh EH9 3FB, United Kingdom","institution_ids":["https://openalex.org/I98677209"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5052549194"],"corresponding_institution_ids":["https://openalex.org/I98677209"],"apc_list":{"value":3670,"currency":"USD","value_usd":3670},"apc_paid":{"value":3670,"currency":"USD","value_usd":3670},"fwci":28.5361,"has_fulltext":false,"cited_by_count":13,"citation_normalized_percentile":{"value":0.99796829,"is_in_top_1_percent":true,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":97,"max":100},"biblio":{"volume":"310","issue":null,"first_page":"109532","last_page":"109532"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11012","display_name":"Gas Dynamics and Kinetic Theory","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2604","display_name":"Applied Mathematics"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11012","display_name":"Gas Dynamics and Kinetic Theory","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2604","display_name":"Applied Mathematics"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12350","display_name":"Particle Dynamics in Fluid Flows","score":0.9995999932289124,"subfield":{"id":"https://openalex.org/subfields/2212","display_name":"Ocean Engineering"},"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/T11751","display_name":"Lattice Boltzmann Simulation Studies","score":0.9991999864578247,"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/solver","display_name":"Solver","score":0.7009819746017456},{"id":"https://openalex.org/keywords/particle","display_name":"Particle (ecology)","score":0.5996332764625549},{"id":"https://openalex.org/keywords/statistical-physics","display_name":"Statistical physics","score":0.4849455654621124},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.42779049277305603},{"id":"https://openalex.org/keywords/mechanics","display_name":"Mechanics","score":0.420023113489151},{"id":"https://openalex.org/keywords/computational-fluid-dynamics","display_name":"Computational fluid dynamics","score":0.4125867784023285},{"id":"https://openalex.org/keywords/particle-method","display_name":"Particle method","score":0.4103944003582001},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.3937162160873413},{"id":"https://openalex.org/keywords/classical-mechanics","display_name":"Classical mechanics","score":0.3638194799423218},{"id":"https://openalex.org/keywords/computational-science","display_name":"Computational science","score":0.36270952224731445},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.2613009214401245},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.2253696620464325},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.18637821078300476},{"id":"https://openalex.org/keywords/plasma","display_name":"Plasma","score":0.09789448976516724},{"id":"https://openalex.org/keywords/nuclear-physics","display_name":"Nuclear physics","score":0.08636906743049622}],"concepts":[{"id":"https://openalex.org/C2778770139","wikidata":"https://www.wikidata.org/wiki/Q1966904","display_name":"Solver","level":2,"score":0.7009819746017456},{"id":"https://openalex.org/C2778517922","wikidata":"https://www.wikidata.org/wiki/Q7140482","display_name":"Particle (ecology)","level":2,"score":0.5996332764625549},{"id":"https://openalex.org/C121864883","wikidata":"https://www.wikidata.org/wiki/Q677916","display_name":"Statistical physics","level":1,"score":0.4849455654621124},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.42779049277305603},{"id":"https://openalex.org/C57879066","wikidata":"https://www.wikidata.org/wiki/Q41217","display_name":"Mechanics","level":1,"score":0.420023113489151},{"id":"https://openalex.org/C1633027","wikidata":"https://www.wikidata.org/wiki/Q815820","display_name":"Computational fluid dynamics","level":2,"score":0.4125867784023285},{"id":"https://openalex.org/C2987747430","wikidata":"https://www.wikidata.org/wiki/Q24898874","display_name":"Particle method","level":3,"score":0.4103944003582001},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.3937162160873413},{"id":"https://openalex.org/C74650414","wikidata":"https://www.wikidata.org/wiki/Q11397","display_name":"Classical mechanics","level":1,"score":0.3638194799423218},{"id":"https://openalex.org/C459310","wikidata":"https://www.wikidata.org/wiki/Q117801","display_name":"Computational science","level":1,"score":0.36270952224731445},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.2613009214401245},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.2253696620464325},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.18637821078300476},{"id":"https://openalex.org/C82706917","wikidata":"https://www.wikidata.org/wiki/Q10251","display_name":"Plasma","level":2,"score":0.09789448976516724},{"id":"https://openalex.org/C185544564","wikidata":"https://www.wikidata.org/wiki/Q81197","display_name":"Nuclear physics","level":1,"score":0.08636906743049622},{"id":"https://openalex.org/C111368507","wikidata":"https://www.wikidata.org/wiki/Q43518","display_name":"Oceanography","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1016/j.cpc.2025.109532","is_oa":true,"landing_page_url":"https://doi.org/10.1016/j.cpc.2025.109532","pdf_url":null,"source":{"id":"https://openalex.org/S142305363","display_name":"Computer Physics Communications","issn_l":"0010-4655","issn":["0010-4655","1879-2944"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Computer Physics Communications","raw_type":"journal-article"},{"id":"pmh:oai:eprints.gla.ac.uk:347789","is_oa":true,"landing_page_url":"https://eprints.gla.ac.uk/view/author/33018.html>","pdf_url":null,"source":{"id":"https://openalex.org/S4210235606","display_name":"ENLIGHTEN (Jurnal Bimbingan dan Konseling Islam)","issn_l":"2622-8912","issn":["2622-8912","2622-8920"],"is_oa":true,"is_in_doaj":true,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"acceptedVersion","is_accepted":true,"is_published":false,"raw_source_name":null,"raw_type":"Articles"}],"best_oa_location":{"id":"doi:10.1016/j.cpc.2025.109532","is_oa":true,"landing_page_url":"https://doi.org/10.1016/j.cpc.2025.109532","pdf_url":null,"source":{"id":"https://openalex.org/S142305363","display_name":"Computer Physics Communications","issn_l":"0010-4655","issn":["0010-4655","1879-2944"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Computer Physics Communications","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G1404782476","display_name":null,"funder_award_id":"EP/V012010/1","funder_id":"https://openalex.org/F4320334627","funder_display_name":"Engineering and Physical Sciences Research Council"},{"id":"https://openalex.org/G2065235695","display_name":"Multiscale Simulation of Rarefied Gas Flow for Engineering Design","funder_award_id":"EP/V012010/1","funder_id":"https://openalex.org/F4320334627","funder_display_name":"Engineering and Physical Sciences Research Council"},{"id":"https://openalex.org/G3148042826","display_name":"Multiscale Simulation of Rarefied Gas Flow for Engineering Design","funder_award_id":"EP/V01207X/1","funder_id":"https://openalex.org/F4320334627","funder_display_name":"Engineering and Physical Sciences Research Council"},{"id":"https://openalex.org/G4944060083","display_name":"Multiscale Simulation of Rarefied Gas Flow for Engineering Design","funder_award_id":"EP/V012002/1","funder_id":"https://openalex.org/F4320334627","funder_display_name":"Engineering and Physical Sciences Research Council"},{"id":"https://openalex.org/G6261208229","display_name":null,"funder_award_id":"EP/V01207X/1","funder_id":"https://openalex.org/F4320334627","funder_display_name":"Engineering and Physical Sciences Research Council"}],"funders":[{"id":"https://openalex.org/F4320334627","display_name":"Engineering and Physical Sciences Research Council","ror":"https://ror.org/0439y7842"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":46,"referenced_works":["https://openalex.org/W70668290","https://openalex.org/W1538135945","https://openalex.org/W1963889436","https://openalex.org/W1965550492","https://openalex.org/W1972665153","https://openalex.org/W1987552612","https://openalex.org/W1989445917","https://openalex.org/W2008003005","https://openalex.org/W2017318376","https://openalex.org/W2019740146","https://openalex.org/W2023960455","https://openalex.org/W2048469416","https://openalex.org/W2066060292","https://openalex.org/W2070699347","https://openalex.org/W2078498923","https://openalex.org/W2078916411","https://openalex.org/W2083597099","https://openalex.org/W2086700458","https://openalex.org/W2092962797","https://openalex.org/W2100947465","https://openalex.org/W2110187357","https://openalex.org/W2148406693","https://openalex.org/W2158770783","https://openalex.org/W2277833349","https://openalex.org/W2305678968","https://openalex.org/W2553049002","https://openalex.org/W2765523148","https://openalex.org/W2790769665","https://openalex.org/W2803239681","https://openalex.org/W2898980574","https://openalex.org/W2947793861","https://openalex.org/W2959278691","https://openalex.org/W2976116934","https://openalex.org/W3048506872","https://openalex.org/W3088045470","https://openalex.org/W3092509387","https://openalex.org/W3101906194","https://openalex.org/W3159274055","https://openalex.org/W4249057576","https://openalex.org/W4285012403","https://openalex.org/W4296680270","https://openalex.org/W4311988548","https://openalex.org/W4396570821","https://openalex.org/W6655612003","https://openalex.org/W6662525222","https://openalex.org/W6755471491"],"related_works":["https://openalex.org/W1604758548","https://openalex.org/W2804126825","https://openalex.org/W1549048322","https://openalex.org/W4367553810","https://openalex.org/W2104142636","https://openalex.org/W2731831065","https://openalex.org/W4283162424","https://openalex.org/W2271439649","https://openalex.org/W2011940952","https://openalex.org/W2144429051"],"abstract_inverted_index":{"This":[0,68],"paper":[1],"presents":[2],"uniGasFoam,":[3],"an":[4,25,266,280],"open-source":[5,267],"particle-based":[6,270],"solver":[7,34,38,284],"for":[8,106,138,225,269,293],"multiscale":[9,227,271,295],"rarefied":[10,228,272,296],"gas":[11,144,229,273,297],"flow":[12,274],"simulations,":[13,217],"which":[14],"has":[15,262],"been":[16,175,263],"developed":[17,37,264],"within":[18],"the":[19,28,40,50,81,182],"well-established":[20],"OpenFOAM":[21],"framework,":[22],"and":[23,64,95,103,119,121,129,142,154,169,204],"is":[24,69,93,117,188],"extension":[26],"of":[27,53,186,231,259],"direct":[29],"simulation":[30],"Monte":[31],"Carlo":[32],"(DSMC)":[33],"dsmcFoam+.":[35],"The":[36,84,114],"addresses":[39],"coupling":[41,87],"challenges":[42],"inherent":[43],"in":[44,58,99],"hybrid":[45,183,202,287],"continuum-particle":[46,112],"methods,":[47,76,134],"originating":[48],"from":[49],"disparate":[51],"nature":[52],"finite-volume":[54],"(FV)":[55],"solvers":[56],"found":[57],"computational":[59,152,211,222],"fluid":[60],"dynamics":[61],"(CFD)":[62],"software":[63],"DSMC":[65,124],"particle":[66,75,127,132],"solvers.":[67],"achieved":[70],"by":[71],"employing":[72],"alternative":[73],"stochastic":[74,126,131,288],"resembling":[77],"DSMC,":[78,140,201],"to":[79,110,214,240],"tackle":[80],"continuum":[82],"limit.":[83],"uniGasFoam":[85,187,208,236,261,278],"particle-particle":[86],"produces":[88],"a":[89,220,286],"numerical":[90],"implementation":[91],"that":[92],"simpler":[94],"more":[96,104],"robust,":[97],"faster":[98],"many":[100],"steady-state":[101],"flows,":[102],"scalable":[105],"transient":[107,163],"flows":[108,230],"compared":[109,213],"conventional":[111],"coupling.":[113],"presented":[115],"framework":[116,268],"unified":[118,130],"generic,":[120],"can":[122],"couple":[123],"with":[125,199,285],"(SP)":[128],"(USP)":[133],"or":[135],"be":[136],"employed":[137],"pure":[139,200,215],"SP,":[141],"USP":[143],"simulations.":[145,275],"To":[146],"enhance":[147],"user":[148,156],"experience,":[149],"reduce":[150],"required":[151],"resources":[153],"minimise":[155],"error,":[157],"advanced":[158],"adaptive":[159,164,170],"algorithms":[160],"such":[161],"as":[162,265],"sub-cells,":[165],"non-uniform":[166],"cell":[167],"weighting,":[168],"global":[171],"time":[172,282],"stepping":[173,283],"have":[174],"integrated":[176],"into":[177],"uniGasFoam.":[178],"In":[179],"this":[180],"paper,":[181],"USP-DSMC":[184],"module":[185],"rigorously":[189],"validated":[190],"through":[191],"multiple":[192],"benchmark":[193],"cases,":[194],"consistently":[195],"showing":[196],"excellent":[197],"agreement":[198],"CFD-DSMC,":[203],"literature":[205],"results.":[206],"Notably,":[207],"achieves":[209],"significant":[210],"gains":[212],"dsmcFoam+":[216],"rendering":[218],"it":[219],"robust":[221],"tool":[223],"well-suited":[224],"addressing":[226],"engineering":[232],"importance.":[233],"Program":[234],"Title:":[235],"CPC":[237],"Library":[238],"link":[239],"program":[241],"files:":[242],"https://doi.org/10.17632/9rvyjbvjw3.1":[243],"Developer's":[244],"repository":[245],"link:":[246],"https://github.com/NVasileiadis93/uniGasFoam":[247],"Licensing":[248],"provisions:":[249],"GNU":[250],"General":[251],"Public":[252],"License":[253],"3":[254],"Programming":[255],"language:":[256],"C++":[257],"Nature":[258],"problem:":[260],"Solution":[276],"method:":[277],"implements":[279],"explicit":[281],"molecular":[289],"collision-relaxation":[290],"scheme":[291],"appropriate":[292],"studying":[294],"flows.":[298]},"counts_by_year":[{"year":2026,"cited_by_count":9},{"year":2025,"cited_by_count":4}],"updated_date":"2026-07-31T08:31:51.225901","created_date":"2025-10-10T00:00:00"}
