The Robust Multigrid
Technique: For Black-Box Software
extended this method for three-dimensional flows and incorporated it with multigrid
Hoppe, "Streaming multigrid
for gradient-domain operations on large images," ACM Trans.
An Algebraic Multigrid
(AMG) method was employed using a V cycle for the momentum equations and a flex cycle for the turbulence quantities.
and Coauthors, 2013: A multigrid
wave forecasting model: A new paradigm in operational wave forecasting.
Five of these algorithms have been popularized over the past 60 years (roughly one per decade), including the Fast Fourier Transform; the Multigrid
method; the Fast Multipole method; Sparse Grids; and Hierarchically Low-rank Matrix methods (or H-matrices).
Most applied work on Laplacian solvers has been on preconditioned conjugate gradient (PCG) solvers, including support graph preconditioners [4, 5, 13], or on specialized multigrid
methods [20, 21].
It is not immediately obvious that the WR approach allows across-time parallelism in the same way that parareal  and parabolic multigrid
Mavriplis, "Formulation and multigrid
solution of the discrete adjoint problem on unstructured meshes," in Computational Fluid Dynamics 2004: Proceedings of the Third International Conference on Computational Fluid Dynamics, ICCFD3, Toronto, 12-16 July 2004, pp.
Vuik, "A novel multigrid
based preconditioner for heterogeneous Helmholtz problems," SIAM Journal on Scientific Computing, vol.
method with fourth order compact difference scheme is compared with the standard second order central difference scheme.
Farm, J, Martinelli, L, Jameson, A, "Fast Multigrid
Method for Solving Incompressible Hydrodynamic Problems with Free Surfaces.