Localized stress amplification in inertialess channel flows of viscoelastic fluids

Nonmodal analysis typically uses square-integrated quantities to characterize amplification of disturbances. However, such measures may be misleading in viscoelastic fluids, where polymer stresses can be strongly amplified over a small region. Here, we show that when using a localized measure of dis...

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Veröffentlicht in:	Journal of non-Newtonian fluid mechanics 2021-05, Vol.291, p.104514, Article 104514
Hauptverfasser:	Hariharan, Gokul, Jovanović, Mihailo R., Kumar, Satish
Format:	Artikel
Sprache:	eng
Schlagworte:	Amplification Channel flow Computational fluid dynamics Fluid flow Linearization Microchannels Polymers Spectral methods Turbulence Two dimensional flow Two dimensional models Viscoelastic fluids Viscoelasticity
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