@incollection{Bonfiglioli18, author = {Bruno Carpentieri and Aldo Bonfiglioli}, title = {Multilevel Variable-Block Schur-Complement-Based Preconditioning for the Implicit Solution of the Reynolds- Averaged Navier-Stokes Equations Using Unstructured Grids}, booktitle = {Computational Fluid Dynamics}, publisher = {IntechOpen}, address = {Rijeka}, year = {2018}, editor = {Adela Ionescu}, chapter = {2}, doi = {10.5772/intechopen.72043}, url = {https://doi.org/10.5772/intechopen.72043} }