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- W1969951488 abstract "Recently there has been substantial interest in least-squares finite element methods for velocity-vorticity-pressure formulations of the incompressible Navier-Stokes equations. The main cause for this interest is the fact that algorithms for the resulting discrete equations can be devised which require the solution of only symmetric, positive definite systems of algebraic equations. On the other hand, it is well-documented that methods using the vorticity as a primary variable often yield very poor approximations. Thus, here we study the accuracy of these methods through a series of computational experiments, and also comment on theoretical error estimates. It is found, despite the failure of standard methods for deriving error estimates, that computational evidence suggests that these methods are, at the least, nearly optimally accurate. Thus, in addition to the desirable matrix properties yielded by least-squares methods, one also obtains accurate approximations." @default.
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- W1969951488 date "1993-07-01" @default.
- W1969951488 modified "2023-10-16" @default.
- W1969951488 title "Accuracy of least-squares methods for the Navier-Stokes equations" @default.
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- W1969951488 doi "https://doi.org/10.1016/0045-7930(93)90025-5" @default.
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