Large-scale secondary structures in duct flow
نویسندگان
چکیده
منابع مشابه
Large-scale secondary structures in duct flow
The spatial growth of small perturbations developing on a fully developed base flow in a duct with two inhomogeneous cross-flow directions is examined. For a laminar mean flow it is shown that optimally configured vortices at an upstream cross-section induce large transient amplification of a disturbance energy norm downstream. Such a linear growth is a likely initial stage of transition in duc...
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ژورنال
عنوان ژورنال: Journal of Fluid Mechanics
سال: 2004
ISSN: 0022-1120,1469-7645
DOI: 10.1017/s0022112004009966