Development of anti-coking thermal management technologies for a coaxially-staged lean-burn fuel injector for high-pressure-ratio aero-engines.: First report: Evaluation of thermal protection performance and validation of numerical analysis by experiments in realistic environments.

• 資料種別: 規格・テクニカルリポート類
• タイトル: Development of anti-coking thermal management technologies for a coaxially-staged lean-burn fuel injector for high-pressure-ratio aero-engines.: First report: Evaluation of thermal protection performance and validation of numerical analysis by experiments in realistic environments.
• 著者・編者: 松浦, 一哲; 山本, 武
• 著者標目: 松浦, 一哲; 山本, 武
• 出版事項: Japan Aerospace Exploration Agency (JAXA)
• 出版年月日等: 2025-02-27
• 出版年（W3CDTF）: 2025-02-27
• タイトル（掲載誌）: JAXA Research and Development Memorandum
• 巻号年月日等（掲載誌）: JAXA-RM-24-008E
• 掲載巻: JAXA-RM-24-008E
• ISSN（掲載誌）: EISSN : 2433-2224
• 本文の言語コード: eng
• 件名標目: Fuel injector design; Lean staged combustor; Injector thermal management; Fuel coking; Thermal oxidation; Aero-engines; Large eddy simulation; Additive manufacturing
• 対象利用者: 一般
• 一般注記: 出版タイプ： VoR; A coaxially-staged lean-burn fuel injector for aero-engines was developed, which was equipped with anti-coking thermal management function. Solid/fluid conjugate heat transfer numerical simulations were performed to evaluate its thermal protection performance. It was shown that the injector of the current design satisfied our criterion, that is, the wet-wall temperatures of its fuel circuits were below 478K, except the regions close to its injection exits. Experiments were also conducted to evaluate the validity of the simulations. At the probe locations where the temperatures were measured, the results of them by the simulations and by the experiments were in good agreement, showing reliability of the simulations for the evaluation of injector performance. In this first report, the main contents are descriptions of numerical/experimental procedures and the results for the injector with one of successful designs in terms of thermal protection. The concept of thermal management design of the injector and its manufacturing process including additive manufacturing are also mentioned briefly.; Physical characteristics: Original contains color illustrations; 形態: カラー図版あり; レポート番号: JAXA-RM-24-008E
• DOI: 10.20637/0002001693; https://doi.org/10.20637/0002001693
• オンライン閲覧公開範囲: インターネット公開
• 連携機関・データベース: 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）; https://irdb.nii.ac.jp
• 提供元機関・データベース: 宇宙航空研究開発機構 : 宇宙航空研究開発機構リポジトリ