Measurement-Integrated Simulation of Wake Turbulence with Four-Dimensional Variational Method

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  • 4次元変分法による後方乱気流の計測融合シミュレーション
  • 4ジゲン ヘン ブンホウ ニ ヨル コウホウ ラン キリュウ ノ ケイソク ユウゴウ シミュレーション

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Abstract

Realistic retrieval of aircraft wake turbulence at an airport is not straight-forward due to the difficulty in incorporating actual conditions such as an atmospheric boundary layer and a flight trajectory into the numerical simulation. In this study, the numerical simulation of wake turbulence is performed by integrating lidar measurements at Sendai airport. The four-dimensional variational method is employed for the integration with taking an actual measurement process into consideration. The behavior of wake turbulence under realistic wind conditions is shown after the discussion regarding the convergence of a retrieved flow field.

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