A parallel and matrix free framework for global stability analysis of compressible flows
Fluid Dynamics
2015-02-13 v1 Numerical Analysis
Abstract
An numerical iterative framework for global modal stability analysis of compressible flows using a parallel environment is presented. The framework uses a matrix-free implementation to allow computations of large scale problems. Various methods are tested with regard to convergence acceleration of the framework. The methods consist of a spectral Cayley transformation used to select desired Eigenvalues from a large spectrum, an improved linear solver and a parallel block-Jacobi preconditioning scheme.
Cite
@article{arxiv.1502.03701,
title = {A parallel and matrix free framework for global stability analysis of compressible flows},
author = {O. Henze and M. Lemke and J. Sesterhenn},
journal= {arXiv preprint arXiv:1502.03701},
year = {2015}
}