Numerical Simulation of Viscous Flow around a Two-Dimensional Finite Flat Plate : 2nd report

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  • 2次元有限平板まわりの粘性流場の数値計算(第2報)
  • 2次元有限平板まわりの粘性流場の数値計算-2-
  • 2ジゲン ユウゲン ヘイバン マワリ ノ ネンセイ ナガレバ ノ スウチ ケイ

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The first report dealed with the numerical method in which the full implicit scheme was used to solve the Navier-Stokes equations and a continuity equation. This numerical solution agreed with the calculated results around a finite flat plate by Lin's analysis that is assumed the high frequency and small amplitude in surging motion. In this report, effects of nonlinear terms in N-S equations are treated at the large amplitude, medium and high frequency cases. In this case, the N-S equations and a continuity equation must be solved in the same time. Numerical solution give slightly fluctured shearing stress and pressure distribution, but it is possible to argue qualitatively but quantatively. The tendency of the time averaged value of shearing stress is very close to the Blasius solution near the leading edge, and decrease near the trailing edge. So, it is suggested that the resultant frictional drag of the flat plate in surging motion will be decreased.

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