{"_buckets": {"deposit": "2541a174-8d2b-4a09-b36e-631118cbda74"}, "_deposit": {"id": "3704", "owners": [], "pid": {"revision_id": 0, "type": "depid", "value": "3704"}, "status": "published"}, "_oai": {"id": "oai:niigata-u.repo.nii.ac.jp:00003704", "sets": ["454", "425"]}, "item_5_alternative_title_1": {"attribute_name": "その他のタイトル", "attribute_value_mlt": [{"subitem_alternative_title": "Large Eddy Simulation of Flow and Scalar Transport in a Round Jet"}]}, "item_5_biblio_info_6": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2003-05", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "681", "bibliographicPageEnd": "1215", "bibliographicPageStart": "1208", "bibliographicVolumeNumber": "69", "bibliographic_titles": [{"bibliographic_title": "日本機械学会論文集. B編"}, {"bibliographic_title": "日本機械学会論文集. B編", "bibliographic_titleLang": "en"}]}]}, "item_5_description_4": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "Large eddy simulation (LES) was performed for a spatially developing round jet and its scalar transport at four steps of Reynolds number set between 1 200 and 1 000 000. Simulated domain, which extends 30 times nozzle diameter, includes initial, transitional and established stage of jet. Modified convection outflow condition was proposed in order to minimize effect of downstream boundary. Tested were two kinds of subgrid scale (SGS) models, Smagorinsky model (SM) and dynamic Smagorinsky model (DSM). In the former model parameters are kept at empirically deduced constants, while in the latter they are calculated using different levels of space filtering. Data analysis based on decay law of jet clearly presented performance of SGS models. Simulated results by SM and DSM compared favorably with existing measurements of jet and its scalar transport and however quantitative accuracy of DSM was better than SM at transitional stage of flow field. Computed parameters by DSM, coefficient for SGS stresses, C_R, and SGS eddy diffusivity ratio, Г_\u003cSGS\u003e, were not far from empirical constants of SM. Optimization of model coefficient was suggested in DSM so that coefficient C_R was nearly equal in established stage of jet but it reduced in low turbulence close to the jet nozzle.", "subitem_description_type": "Abstract"}]}, "item_5_full_name_3": {"attribute_name": "著者別名", "attribute_value_mlt": [{"nameIdentifiers": [{"nameIdentifier": "44800", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "Suto, Hitoshi"}]}, {"nameIdentifiers": [{"nameIdentifier": "44801", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "Matsubara, Koji"}]}, {"nameIdentifiers": [{"nameIdentifier": "44802", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "Kobayashi, Mutsuo"}]}, {"nameIdentifiers": [{"nameIdentifier": "44803", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "Kaneko, Yoshiaki"}]}]}, "item_5_publisher_7": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "日本機械学会"}]}, "item_5_relation_31": {"attribute_name": "異版である", "attribute_value_mlt": [{"subitem_relation_type": "isVersionOf", "subitem_relation_type_id": {"subitem_relation_type_id_text": "http://ci.nii.ac.jp/naid/110002388093", "subitem_relation_type_select": "URI"}}]}, "item_5_rights_15": {"attribute_name": "権利", "attribute_value_mlt": [{"subitem_rights": "日本機械学会 / 本文データは学会の許諾に基づくCiNiiからの複製である"}]}, "item_5_select_19": {"attribute_name": "著者版フラグ", "attribute_value_mlt": [{"subitem_select_item": "publisher"}]}, "item_5_source_id_11": {"attribute_name": "書誌レコードID", "attribute_value_mlt": [{"subitem_source_identifier": "AN00187441", "subitem_source_identifier_type": "NCID"}]}, "item_5_source_id_9": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "03875016", "subitem_source_identifier_type": "ISSN"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "須藤, 仁"}], "nameIdentifiers": [{"nameIdentifier": "44796", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "松原, 幸治"}], "nameIdentifiers": [{"nameIdentifier": "44797", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "小林, 睦夫"}], "nameIdentifiers": [{"nameIdentifier": "44798", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "金子, 嘉昭"}], "nameIdentifiers": [{"nameIdentifier": "44799", "nameIdentifierScheme": "WEKO"}]}]}, "item_files": {"attribute_name": "ファイル情報", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_date", "date": [{"dateType": "Available", "dateValue": "2019-07-30"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "9_0067.pdf", "filesize": [{"value": "607.7 kB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_free", "mimetype": "application/pdf", "size": 607700.0, "url": {"label": "9_0067.pdf", "url": "https://niigata-u.repo.nii.ac.jp/record/3704/files/9_0067.pdf"}, "version_id": "7b87f206-8ac7-4b99-81e0-f5af23e00fba"}]}, "item_keyword": {"attribute_name": "キーワード", "attribute_value_mlt": [{"subitem_subject": "Round Jet", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Scalar Transport", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Large Eddy Simulation", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Modified Outflow Condition", "subitem_subject_scheme": "Other"}]}, "item_language": {"attribute_name": "言語", "attribute_value_mlt": [{"subitem_language": "jpn"}]}, "item_resource_type": {"attribute_name": "資源タイプ", "attribute_value_mlt": [{"resourcetype": "journal article", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_title": "スカラー拡散を伴う円形噴流のラージ・エディ・シミュレーション", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "スカラー拡散を伴う円形噴流のラージ・エディ・シミュレーション"}, {"subitem_title": "スカラー拡散を伴う円形噴流のラージ・エディ・シミュレーション", "subitem_title_language": "en"}]}, "item_type_id": "5", "owner": "1", "path": ["454", "425"], "permalink_uri": "http://hdl.handle.net/10191/5769", "pubdate": {"attribute_name": "公開日", "attribute_value": "2008-04-08"}, "publish_date": "2008-04-08", "publish_status": "0", "recid": "3704", "relation": {}, "relation_version_is_last": true, "title": ["スカラー拡散を伴う円形噴流のラージ・エディ・シミュレーション"], "weko_shared_id": null}