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EPTT 2020
12th Spring School on Transition and Turbulence
EFFECT OF PRESSURE GRADIENT ON THE GÖRTLER VORTICES FASTEST GROWING SPANWISE WAVENUMBER
Submission Author:
Marcio Teixeira de Mendonca , SP
Co-Authors:
Leandro M. Fernandes, Marcio Teixeira de Mendonca
Presenter: Leandro M. Fernandes
doi://10.26678/ABCM.EPTT2020.EPT20-0040
Abstract
Centrifugal instability is one of the many routes to transition from laminar to turbulent flow in boundary layers. The main characteristics of centrifugal instability is the development of counter rotating vortices known as Görtler vortices. The present investigation is an extension of a previous work on the effect of pressure gradient on the development of Görtler vortices, where the effect of pressure gradient on the wavelength of the fastest growing disturbances was investigated. The present work reviews previous results presented in the literature in the light of the relation between these fastest growing modes and pressure gradient.
Keywords
hydrodynamic stability, centrifugal isntability, Görtler vortices, Linear stability theory
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