Nonmodal Stability Theory
نویسنده
چکیده
Hydrodynamic stability theory has recently seen a great deal of development. After being dominated by modal (eigenvalue) analysis for many decades, a different perspective has emerged that allows the quantitative description of short-term disturbance behavior. A general formulation based on the linear initial-value problem, thus circumventing the normal-mode approach, yields an efficient framework for stability calculations that is easily extendable to incorporate time-dependent flows, spatially varying configurations, stochastic influences, nonlinear effects, and flows in complex geometries. 129 A nn u. R ev . F lu id M ec h. 2 00 7. 39 :1 29 -1 62 . D ow nl oa de d fr om a rj ou rn al s. an nu al re vi ew s. or g by U ni ve rs ity o f M in ne so ta L aw L ib ra ry o n 07 /2 2/ 07 . F or p er so na l u se o nl y. ANRV294-FL39-07 ARI 12 December 2006 6:2
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