A comparison of several implicit residual smoothing methods in combination with multigrid

Blazek, J., Rossow, C.-C., Kroll, N., & Swanson, R. C. (2008). A comparison of several implicit residual smoothing methods in combination with multigrid. In Thirteenth International Conference on Numerical Methods in Fluid Dynamics (pp. 386–390). Springer Berlin Heidelberg. https://doi.org/10.1007/3-540-56394-6_253