{"created":"2023-06-20T15:08:05.439034+00:00","id":37478,"links":{},"metadata":{"_buckets":{"deposit":"97cefc05-69f3-4613-ba01-a1b035252109"},"_deposit":{"created_by":1,"id":"37478","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"37478"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00037478","sets":["1887:1891","1896:1898:1913:1915"]},"author_link":["481014","481013"],"item_5_alternative_title_2":{"attribute_name":"その他のタイトル（英）","attribute_value_mlt":[{"subitem_alternative_title":"On the possibility of Reynolds stress models"}]},"item_5_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1999-12","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"290","bibliographicPageStart":"285","bibliographicVolumeNumber":"44","bibliographic_titles":[{"bibliographic_title":"航空宇宙技術研究所特別資料"},{"bibliographic_title":"Special Publication of National Aerospace Laboratory","bibliographic_titleLang":"en"}]}]},"item_5_description_14":{"attribute_name":"会議概要（会議名, 開催地, 会期, 主催者等）","attribute_value_mlt":[{"subitem_description":"航空宇宙技術研究所 16-18 Jun. 1999 東京 日本","subitem_description_type":"Other"}]},"item_5_description_15":{"attribute_name":"会議概要（会議名, 開催地, 会期, 主催者等）（英）","attribute_value_mlt":[{"subitem_description":"National Aerospace Laboratory 16-18 Jun. 1999 Tokyo Japan","subitem_description_type":"Other"}]},"item_5_description_16":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"CFD(数値流体力学)は様々な工学分野で非常に有用で、将来性のあるツールである。プレおよびポストプロセス、格子生成、数値スキーム、計算アルゴリズムなどが確立されている。CFD計算の目標はさらに混相流、燃焼、分子流および非ニュートン流などに拡大してきている。しかし今日においても、乱流モデルおよび乱流計算はボトルネックである。本論文ではRANS(レイノルズ平均乱流モデル)中でも最も普遍的な、しかし複雑であるレイノルズ応力モデルに着目した。第1に、このモデルの概略と優れた点につき紹介する。一例として著者らの壁面噴射、サイクロン分離器、ジェットポンプの計算結果を示した。その結果、乱れに応力輸送、旋回および2次的ひずみ効果による影響のある場合に、レイノルズ応力モデルが渦粘性モデルに対して優れていることが分かった。第2に、最近の研究者の傾向を示し、3次元モデルや複雑な流れの検証などがなされていることを強調した。レイノルズ応力モデルの開発、改良、検証が国内外で広く行われている。第3に、このモデルの特性を説明した。またこのモデルを他のいくつかの乱流モデルと比較して長所、短所を明らかにした。最後にレイノルズ応力モデルの可能性について議論した。このモデルを有効に活用することを検討し、最良のモデルを正しい使い方をする必要性を強調した。すなわち、レイノルズ応力モデルの工学分野への最も有望な活用法は、渦粘性モデルでは信頼すべき結果が得られないような流れや流れの非定常性を問題としないあるいは重要でない流れへの適用である。","subitem_description_type":"Abstract"}]},"item_5_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"Computational Fluid Dynamics (CFD) is a very useful and promising tool in various engineering field. Pre and post processes, grid generation, numerical schemes, computational algorithm and so on have been well established. Targets of CFD codes have also been extending to multi-phase flow, combustion, molecular gas and non-Newtonian fluid. However, turbulence models and/or turbulence computations are the bottleneck even in the present days. In this paper, the subject is focused on the Reynolds stress model that is the most universal but complicated among turbulence models with Reynolds Average Numerical Simulation (RANS). First, the modeling outline and the superiority of the model are introduced. As the examples, computational results for wall jet, cyclone separator and jet pump are exhibited. It is depicted that a Reynolds stress model is superior to an eddy viscosity model when turbulence suffers from stress transport, swirl and secondary strain effects. Second, the recent trend of researchers is presented, enhancing cubic models and complex flow verifications. It is indicated that developments, improvements and verifications of Reynolds stress models are being carried out all over the world. Third, the model characteristics are explained. Comparing them with those of other turbulence models, the strong and weak points are clarified. Finally, the possibility of the Reynolds stress model is discussed. After taking into account the possible way to make use of a Reynolds stress model, it is confirmed that the best model should be used in the right place. That is, the most promising way to employ a Reynolds stress model in engineering applications is to apply it to the flows where eddy viscosity models cannot provide reliable results and the unsteadiness of the flow is not needed or unimportant.","subitem_description_type":"Other"}]},"item_5_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: AA0001961045","subitem_description_type":"Other"}]},"item_5_description_33":{"attribute_name":"レポート番号","attribute_value_mlt":[{"subitem_description":"レポート番号: NAL SP-44","subitem_description_type":"Other"}]},"item_5_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"航空宇宙技術研究所"}]},"item_5_publisher_9":{"attribute_name":"出版者（英）","attribute_value_mlt":[{"subitem_publisher":"National Aerospace Laboratory (NAL)"}]},"item_5_source_id_21":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0289-260X","subitem_source_identifier_type":"ISSN"}]},"item_5_source_id_24":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN10097345","subitem_source_identifier_type":"NCID"}]},"item_5_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"東京理科大学"}]},"item_5_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Science University of Tokyo"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"山本, 誠"}],"nameIdentifiers":[{"nameIdentifier":"481013","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Yamamoto, Makoto","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"481014","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":"2020-02-10"}],"displaytype":"detail","filename":"nalsp0044045.pdf","filesize":[{"value":"599.3 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"nalsp0044045.pdf","url":"https://jaxa.repo.nii.ac.jp/record/37478/files/nalsp0044045.pdf"},"version_id":"120903b6-c26e-4f9a-a315-ee06f3720a82"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"レイノルズ応力モデル","subitem_subject_scheme":"Other"},{"subitem_subject":"乱流モデル","subitem_subject_scheme":"Other"},{"subitem_subject":"CFD","subitem_subject_scheme":"Other"},{"subitem_subject":"数値流体力学","subitem_subject_scheme":"Other"},{"subitem_subject":"渦粘性モデル","subitem_subject_scheme":"Other"},{"subitem_subject":"RANS","subitem_subject_scheme":"Other"},{"subitem_subject":"レイノルズ平均数値計算","subitem_subject_scheme":"Other"},{"subitem_subject":"壁面噴射","subitem_subject_scheme":"Other"},{"subitem_subject":"サイクロン分離器","subitem_subject_scheme":"Other"},{"subitem_subject":"ジェットポンプ","subitem_subject_scheme":"Other"},{"subitem_subject":"キュービックモデル","subitem_subject_scheme":"Other"},{"subitem_subject":"Reynolds stress model","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"turbulence model","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"CFD","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"computational fluid dynamics","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"eddy viscosity model","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"RANS","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Reynolds average numerical simulation","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"wall jet","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"cyclone separator","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"jet pump","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"cubic model","subitem_subject_language":"en","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":"conference paper","resourceuri":"http://purl.org/coar/resource_type/c_5794"}]},"item_title":"応力方程式モデルの可能性について","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"応力方程式モデルの可能性について"}]},"item_type_id":"5","owner":"1","path":["1891","1915"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-03-26"},"publish_date":"2015-03-26","publish_status":"0","recid":"37478","relation_version_is_last":true,"title":["応力方程式モデルの可能性について"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-20T21:17:57.880292+00:00"}