Upwind relaxation methods for the Navier-Stokes equations using inner iterations: Arthur C. Taylor III, Department of Mechanical Engineering and Mechanics, Old Dominion University, Norfolk, Virginia 23529-0247, USA; Wing-fai Ng, Mechanical Engineering Department, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061-0238, USA; Robert W. Walters, DepartmentofAerospaceandOceanEngineering, VirginiaPolytechnicInstituteandStateUniversity, Blacksburg, Virginia 24061-0238, USA