Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4631522 | Applied Mathematics and Computation | 2011 | 17 Pages |
Abstract
The approach is illustrated with a simple Rijke tube configuration. Results obtained with a simple “baseline” model for the heat source dynamics based on King's law - widely used in hot wire anemometry - are compared against the more advanced treatment developed here. Analysis of pseudospectra diagrams shows that the choice of the heat source model does influence the sensitivity of eigenvalues to perturbations and hence the non-normal behavior. The maximum growth factor for the system with the heat source model based on King's law is more sensitive to changes in the heat source location than the CFD-based heat source model.
Related Topics
Physical Sciences and Engineering
Mathematics
Applied Mathematics
Authors
F. Selimefendigil, R.I. Sujith, W. Polifke,