Drag and Lift Estimation from 3-D Velocity Field Data Measured by Multi-Plane Stereo PIV

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5th Symposium on Integrating CFD and Experiments in Aerodynamics (October 3-5, 2012, Chofu Aerospace Center, Japan Aerospace Exploration Agency (JAXA)), Chofu, Tokyo, Japan

For airplane design, it is crucial to have tools that can accurately predict airplane drag and lift. Usually drag and lift prediction methods are force measurement using wind tunnel balance. Unfortunately, balance data do not provide information contribution of airplane to components to drag and lift for more precise and competitive airplane design. To obtain such information, a wake integration method for use drag and lift estimation was developed for use in wake survey data analysis. Wake survey data is commonly measured by multi-hole pressure probes. But pressure probe measurement requires considerable time, so that it is difficult to apply many conditions in wind tunnel testing. On the other hand, PIV measurement possesses the ability to acquire velocity distribution data at relatively short times. However, PIV measurement does not provide pressure data directly. Therefore, the pressure estimation technique is developed to enhance the value of PIV data. The technique conducts computational fluid dynamics (CFD) computation to estimate pressure field using multi-plane stereo PIV velocity data. Finally, drag and lift profiles are predicted by the wake integration method using velocity data measured by PIV and pressure data estimated by CFD.

形態: カラー図版あり

Physical characteristics: Original contains color illustrations

資料番号: AA0062070038

レポート番号: JAXA-SP-13-001E

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