This report presents defect correcting extrapolation technique (DCE), an alternative approach for defect correction (DC). In contrast to conventional DC methods, which always solve for separate correction steps, DCE instantly assumes weighted linear combinations of several artificial viscosity approximations as a corrected solution. This way, it merely requires solving an identical problem with varying viscosities. The theory and computations show that DCE uncovers ”hidden turbulence” in artificially-diffused laminar solutions, and recovers their energy and turbulent characteristics.

中文翻译：

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Oseen和Navier–Stokes流的缺陷校正外推技术

该报告介绍了缺陷校正外推技术（DCE），这是缺陷校正（DC）的替代方法。与通常需要解决单独校正步骤的常规DC方法相反，DCE立即将几种人工粘度近似值的加权线性组合作为校正溶液。这样，仅需要解决粘度不同的相同问题。理论和计算表明，DCE在人工扩散的层流溶液中发现了“隐藏的湍流”，并恢复了它们的能量和湍流特性。