Development of the Post-Processing Method for PIV Measurement Result Using Computational Fluid Dynamics Procedure.

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  • ＣＦＤの手法を用いたＰＩＶ計測結果のポストプロセッシング法の開発
  • CFD ノ シュホウ オ モチイタ PIV ケイソク ケッカ ノ ポストプロセ

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Since velocity vectors obtained by Particle Imaging Velocimetry are distributed discretely depending on the number density of tracer particles seeded in the objective flow, a new estimation algorithm to reconstruct the whole-field flow has been proposed using the Laplace equation for velocity vector and the Poisson equation for velocity correction potential. Performance of the algorithm was examined with two-dimensional vortex flow, and the validity was evaluated quantitatively by two-dimensional correlation coefficient. The present algorithm was applied to torque converter internal flow, and the results reveal that the present method is applicable for various conditions to analyze the whole-field flow structure.

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