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http://dx.doi.org/10.5139/JKSAS.2017.45.3.226

Grid Convergence on Surface Pressure Distribution over the RAE-A Wing-Body Configuration  

Kim, Ki Ro (Department of Aerospace Information Engineering, Konkuk University)
Park, Soo Hyung (Department of Aerospace Information Engineering, Konkuk University)
Sa, Jeong Hwan (Supercomputing Center, Korea Institute of Science and Technology Information)
Cho, Kum Won (Supercomputing Center, Korea Institute of Science and Technology Information)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.45, no.3, 2017 , pp. 226-232 More about this Journal
Abstract
Surface pressure distributions over the RAE-A wing-body configuration were investigated and the grid convergence along the streamwise, spanwise, and circumferential directions was numerically studied. Flow analysis in subsonic and transonic conditions was conducted using the $k-{\omega}$ Wilcox-Durbin+ turbulence model. Surface pressure distributions for subsonic flows were well matched, but those for transonic shocked flows showed a little discrepancy with the experimental data. A cubic spline extrapolation method was applied in order to investigate the grid convergence. This method presented that the grid resolution in the circumferential direction is the most important grid parameter. A refined grid system was made based on the grid convergence study and provided more accurate prediction, especially on the symmetric body surface of RAE-A configuration.
Keywords
RAE-A wing-body; Turbulence model; Convergence; Extrapolation method;
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Times Cited By KSCI : 1  (Citation Analysis)
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