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titleApplication of the Measurement Integrated Simulation Method to Compressible Fluid Problems
Author(jpn)今川, 健太郎; 保江, かな子; 口石, 茂
Author(eng)Imagawa, Kentaro; Yasue, Kanako; Kuchiishi, Shigeru
Author Affiliation(jpn)宇宙航空研究開発機構研究開発本部(JAXA); 宇宙航空研究開発機構研究開発本部(JAXA); 宇宙航空研究開発機構研究開発本部(JAXA)
Author Affiliation(eng)Aerospace Research and Development Directorate, Japan Aerospace Exploration Agency (JAXA); Aerospace Research and Development Directorate, Japan Aerospace Exploration Agency (JAXA); Aerospace Research and Development Directorate, Japan Aerospace Exploration Agency (JAXA)
Issue Date2013-11-30
Japan Aerospace Exploration Agency (JAXA)
Publication title宇宙航空研究開発機構特別資料
JAXA Special Publication
Start page217
End page228
Publication date2013-11-30
AbstractMeasurement Integrated Simulation (MIS) is a data assimilation method using the idea of a flow observer. MIS is already used in the analysis of incompressible fluids in biomedical and pipe flows. In this study, a coupled system of a CFD solver and an MIS algorithm was constructed, and an identical twin experiment for the flow field around a 2-dimensional airfoil subject to different boundary conditions was performed. It was found that the MIS reproduced the aerodynamic coefficients of target data even if different boundary conditions are set. The accuracy of MIS was demonstrated, not only for the physical properties used for the assimilation but also for unassimilated properties. In addition, for sample data with random or bias error, the difference between the simulated and sample data achieved by the computation with MIS was much smaller than the difference achieved without MIS.
Description形態: カラー図版あり
Meeting Information: 5th Symposium on Integrating CFD and Experiments in Aerodynamics (October 3-5, 2012, Chofu Aerospace Center, Japan Aerospace Exploration Agency (JAXA)), Chofu, Tokyo, Japan
Physical characteristics: Original contains color illustrations
KeywordsExperimental Fluid Dynamics (EFD); Computational Fluid Dynamics (CFD); Data Assimilation; Measurement Integrated Simulation (MIS)
Document TypeConference Paper
JAXA Category特別資料
NASA Subject CategoryFluid Mechanics and Thermodynamics
Report NoJAXA-SP-13-001E

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