| Abstract: | The phrases ‘transient growth’ and ‘non-normality’ have become common parlance in fluid mechanics nowadays. We present these
ideas with a simple two-dimensional system, to enable the reader to look for transient growth, as a trigger for nonlinear
behaviour to set in, in a variety of situations probably having nothing to do with fluid mechanics. The article is aimed at
undergraduate students of science, engineering, finance, etc., and the material is based completely on the excellent books
of Trefethen and Embree, and Schmid and Henningson 1,2]. |
