A fast Navier-Stokes solver for the computations of compressible flows is presented. This method is an extension of the classical Lambda formulation, and is based on the integration of the compatibility conditions along the bicharacteristic lines, hence reducing multi-dimensional flow problems to a sequence of simple quasi 1D problems. The 2D compressible viscous governing equations are obtained as follows: the convective contributions are treated as the four compatibility conditions along the bicharacteristic lines and the diffusive contributions are treated as corrective terms. The model has been applied to solve subsonic flows around the NACA 0012 airfoil. The results have been compared with previous data, to confirm the accuracy and the reliability of the proposed algorithm.
|Autori interni:||FORTUNATO, Bernardo|
|Titolo:||An Implicit Lambda Method for 2-D Viscous Compressible Flows|
|Titolo del libro:||Lecture Notes in Physics|
|Nome editore:||Springer Verlag|
|Data di pubblicazione:||1995|
|Appare nelle tipologie:||2.1 Contributo in volume (Capitolo o Saggio)|