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Alternatives to SIMPLE for solving Navier-stokes equations in a fully coupled way

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Old   November 19, 2022, 09:22
Default Alternatives to SIMPLE for solving Navier-stokes equations in a fully coupled way
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Hello.


I am just wondering, which alternatives to the is the SIMPLE-algorithm exist for the solution of NS equations.



I am aware of fractional steps such as the projection method exists, or also other approaches such as PISO.



What i really don't quite understand is why is just not possible to use a more "overall" scheme, where a large nonlinear system is assembled and solved? I can imagine only that it is not done mainly due to performance issues?



Thank you
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navier-stokes solver, nonlinear iterations, simple algorithm


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