Noise Simulation around NACA0012 Wingtip using Large Eddy Simulation

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概要

• 論文の詳細を見る

• Flow structures around a NACA0012 wingtip are investigated using a zonal LES/RANS hybrid method in order to understand the noise generation mechanism around the flap-edge. It is known from previous studies that the flow around a blunt wingtip is similar to that of the flap-edge. Grid dependency studies are performed for both time-averaged and unsteady components, and the results are assessed via comparison with the experimental data. It became apparent that the zonal LES/RANS hybrid results are more sensitive to the chordwise grid resolution, compared with these of RANS. Based on the validated data, the noise generation mechanism around the wingtip is discussed. The near-field flow structures relevant to noise generation are obtained successfully.

• 2012-07-04

著者

• Yamamoto Kazuomi

  Aviation Program Group Japan Aerospace Exploration Agency

• IMAMURA Taro

  Aviation Program Group, Japan Aerospace Exploration Agency

• YAMAMOTO Kazuomi

  Aviation Program Group, Japan Aerospace Exploration Agency

• ENOMOTO Shunji

  Aviation Program Group, Japan Aerospace Exploration Agency

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• Noise Simulation around NACA0012 Wingtip using Large Eddy Simulation

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