Assessment and Improvement of Fast Euler Solver
A generalization of the Fast Solver of G. Moretti  for the two-dimensional Euler equations written for generalized curvilinear coordinates is presented. The normalized contravariant base is introduced. The Euler equations are recast in diagonalized form and discretized in time in implicit Δ-form. A system of four pseudo compatibility equations is obtained by means of local one-dimensional analysis. The integration of this system requires the inversion of four bidiagonal matrices instead of 3 × 3 block-tridiagonal matrices. Preliminary results for subsonic flows are presented.
Unable to display preview. Download preview PDF.
- 2.G. Moretti, “A Fast Euler Solver for Steady Flows”, Proc. AIAA 6th Computational Fluid Dynamics Conference, Danvers, MA, 1983, pp. 357-362.Google Scholar
- 3.M. Onofri, D. Lentini, “Fast Numerical Solver for Transonic Flows”, Computers & Fluids, 17, 1, 1989, pp.Google Scholar
- 5.G. Moretti, M. Onofri, “Fast Euler Solver for Blunt Body Flows, Poly M/AE Report no. 86-13.Google Scholar
- 9.B. Favini, R. Marsilio, L. Zannetti, “Numerical Approximation of Boundary Conditions for Initial-Boundary-Value Problem”, proc. ISCFD-Nagoya, Nagoya, 1989.Google Scholar