Direct numerical simulation of a three-dimensional turbulent boundary layer with emphasis on a corner flow in a wing-body junction
Project/Area Number |
16K06101
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Fluid engineering
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Research Institution | Japan Aerospace EXploration Agency |
Principal Investigator |
ABE HIROYUKI 国立研究開発法人宇宙航空研究開発機構, 航空技術部門, 主任研究開発員 (80358481)
|
Project Period (FY) |
2016-04-01 – 2019-03-31
|
Project Status |
Completed (Fiscal Year 2018)
|
Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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Keywords | 乱流 / 3次元乱流境界層 / コーナーフロー / 直接数値シミュレーション / 乱流境界層 |
Outline of Final Research Achievements |
In the present study, we have developed a simulation code to perform a direct numerical simulation of a three-dimensional turbulent boundary layer with emphasis on a corner flow in a wing-body junction. In addition, we have also developed a low Reynolds-number quadratic nonlinear k-epsilon model (AMM model), with a view to predicting a corner flow. The AMM model has then been implemented into a CFD code for compressible flows ‘FaSTAR’ developed by JAXA, which successfully yields a reasonable prediction for the corner separation in a NASA CRM wing-body junction flow.
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Academic Significance and Societal Importance of the Research Achievements |
3次元乱流境界層のDNSデータは,2次元乱流境界層に比べ圧倒的に少なく,本研究で得られたDNSデータの学術的意義は大きい.また,開発した乱流モデルは,その学術的な新規性に加え,研究代表者の研究機関の主要コードにも実装されており,社会的な役割も果たしている.
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Report
(4 results)
Research Products
(4 results)