{"id":"https://openalex.org/A5060874455","orcid":"https://orcid.org/0000-0001-6644-9693","observed_orcids":["https://orcid.org/0000-0001-6644-9693"],"display_name":"Ryo Hirai","raw_author_names":["Hirai, Ryo","Ryo HIRAI","Ryo Hirai"],"full_name":"Hirai, Ryo","works_count":12,"cited_by_count":47,"summary_stats":{"2yr_mean_citedness":4.333333333333333,"h_index":3,"i10_index":3},"ids":{"openalex":"https://openalex.org/A5060874455","orcid":"https://orcid.org/0000-0001-6644-9693","observed_orcids":["https://orcid.org/0000-0001-6644-9693"]},"affiliations":[{"institution":{"id":"https://openalex.org/I171481255","ror":"https://ror.org/020wjcq07","display_name":"Shibaura Institute of Technology","country_code":"JP","type":"education","lineage":["https://openalex.org/I171481255"]},"years":[2019]},{"institution":{"id":"https://openalex.org/I201537933","ror":"https://ror.org/01dq60k83","display_name":"Tohoku University","country_code":"JP","type":"education","lineage":["https://openalex.org/I201537933"]},"years":[2023,2022,2021,2019]},{"institution":{"id":"https://openalex.org/I98358874","ror":"https://ror.org/02e2c7k09","display_name":"Delft University of Technology","country_code":"NL","type":"education","lineage":["https://openalex.org/I98358874"]},"years":[2026,2025]}],"last_known_institutions":[{"id":"https://openalex.org/I98358874","ror":"https://ror.org/02e2c7k09","display_name":"Delft University of Technology","country_code":"NL","type":"education","lineage":["https://openalex.org/I98358874"]}],"topics":[{"id":"https://openalex.org/T10360","display_name":"Fluid Dynamics and Turbulent Flows","count":12,"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/T10173","display_name":"Computational Fluid Dynamics and Aerodynamics","count":10,"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/T11012","display_name":"Gas Dynamics and Kinetic Theory","count":3,"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/T13951","display_name":"Fluid dynamics and aerodynamics studies","count":3,"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/T10054","display_name":"Parallel Computing and Optimization Techniques","count":2,"subfield":{"id":"https://openalex.org/subfields/1708","display_name":"Hardware and Architecture"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"topic_share":[{"id":"https://openalex.org/T12007","display_name":"Plasma and Flow Control in Aerodynamics","value":3.05e-05,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace 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/T10360","display_name":"Fluid Dynamics and Turbulent Flows","value":1.74e-05,"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/T10173","display_name":"Computational Fluid Dynamics and Aerodynamics","value":1.59e-05,"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/T11012","display_name":"Gas Dynamics and Kinetic Theory","value":1.37e-05,"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/T12567","display_name":"Heat transfer and supercritical fluids","value":9.8e-06,"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"}}],"x_concepts":[{"id":"196558001","wikidata":"https://www.wikidata.org/wiki/Q190132","display_name":"Turbulence","score":0.8273668885231018},{"id":"192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","score":0.7582715749740601},{"id":"111603439","wikidata":"https://www.wikidata.org/wiki/Q752193","display_name":"Boundary layer","score":0.7428990602493286},{"id":"57879066","wikidata":"https://www.wikidata.org/wiki/Q41217","display_name":"Mechanics","score":0.7159733176231384},{"id":"121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","score":0.6254995465278625}],"counts_by_year":[{"year":2018,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2019,"works_count":3,"oa_works_count":1,"cited_by_count":0},{"year":2021,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":2022,"works_count":1,"oa_works_count":0,"cited_by_count":2},{"year":2023,"works_count":2,"oa_works_count":2,"cited_by_count":9},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":7},{"year":2025,"works_count":2,"oa_works_count":2,"cited_by_count":12},{"year":2026,"works_count":1,"oa_works_count":1,"cited_by_count":17}],"display_name_alternatives":["Hirai, Ryo","Ryo HIRAI","Ryo Hirai"],"block_key":"r hirai","works_api_url":"https://api.openalex.org/works?filter=author.id:A5060874455","updated_date":"2026-10-27T12:30:23","created_date":"2018-03-06T00:00:00"}
