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Advanced Modeling and Simulation in Engineering Sciences

Table 3 Settings for multigrid hierarchies embedded in the hybrid preconditioner

From: A hybrid interface preconditioner for monolithic fluid–structure interaction solvers

Field

Fine level

Medium levels

Coarse level

Chebyshev(6)

Chebyshev(12)

LU

SGS\((3\times 0.69)\)

SGS\((6\times 0.69)\)

LU

Chebyshev(6)

Chebyshev(12)

LU

  1. Solid and ALE use Chebyshev smoothers on the fine and medium levels, while the fluid employs three and six sweeps of damped symmetric Gauß–Seidel on the fine and medium levels, respectively.
  2. All fields use a direct solver on the coarsest level
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