Time accuracy and the use of implicit methods. [in CFD

  title={Time accuracy and the use of implicit methods. [in CFD},
  author={Thomas H. Pulliam},
Some of the approximations used to make implicit methods more efficient and practical for the solution of the Euler and Navier-Stokes equations are addressed. In particular, approximate factorizations, diagonalizations, and linearization approximations are reviewed and categorized. A subiteration correction scheme commonly in use at present is introduced, improved, demonstrated, and analyzed. This scheme is used to produce a second-order accurate, more robust implicit method for unsteady flow… 

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