Adjoint equations in stability analysis

P Luchini, A Bottaro - Annual Review of fluid mechanics, 2014 - annualreviews.org
The objective of this article is to review some developments in the use of adjoint equations in
hydrodynamic stability theory. Adjoint-based sensitivity analysis finds both analytical and …

Boundary-layer receptivity to freestream disturbances

WS Saric, HL Reed, EJ Kerschen - Annual review of fluid …, 2002 - annualreviews.org
▪ Abstract The current understanding of boundary-layer receptivity to external acoustic and
vortical disturbances is reviewed. Recent advances in theoretical modeling, numerical …

A three-equation eddy-viscosity model for Reynolds-averaged Navier–Stokes simulations of transitional flow

DK Walters, D Cokljat - 2008 - asmedigitalcollection.asme.org
An eddy-viscosity turbulence model employing three additional transport equations is
presented and applied to a number of transitional flow test cases. The model is based on the …

Transition in boundary layers subject to free-stream turbulence

L Brandt, P Schlatter, DS Henningson - Journal of Fluid Mechanics, 2004 - cambridge.org
The effect of high levels of free-stream turbulence on the transition in a Blasius boundary
layer is studied by means of direct numerical simulations, where a synthetic turbulent inflow …

A new model for boundary layer transition using a single-point RANS approach

DK Walters, JH Leylek - J. Turbomach., 2004 - asmedigitalcollection.asme.org
This paper presents the development and implementation of a new model for bypass and
natural transition prediction using Reynolds-averaged Navier-Stokes computational fluid …

Fluid mechanics of papermaking

F Lundell, LD Söderberg… - Annual Review of Fluid …, 2011 - annualreviews.org
Papermaking is to a large extent a multiphase flow process in which the structure of the
material and many of the relevant properties of the final product are determined by the …

Direct numerical simulation of complete H-type and K-type transitions with implications for the dynamics of turbulent boundary layers

T Sayadi, CW Hamman, P Moin - Journal of Fluid Mechanics, 2013 - cambridge.org
The onset and development of turbulence from controlled disturbances in compressible (in
each transition scenario. Skin-friction maxima, organized hairpin vortices and the onset of …

Delaying transition to turbulence by a passive mechanism

JHM Fransson, A Talamelli, L Brandt, C Cossu - Physical review letters, 2006 - APS
Reducing skin friction is important in nature and in many technological applications. This
reduction may be achieved by reducing stresses in turbulent boundary layers, for instance …

From streaks to spots and on to turbulence: exploring the dynamics of boundary layer transition

TA Zaki - Flow, turbulence and combustion, 2013 - Springer
an eerie type of chaos can lurk just behind a facade of order, and yet deep inside the chaos
lurks an even eerier type of order.” Douglas Hofstadter Bypass transition to turbulence in …

The lift-up effect: the linear mechanism behind transition and turbulence in shear flows

L Brandt - European Journal of Mechanics-B/Fluids, 2014 - Elsevier
The formation and amplification of streamwise velocity perturbations induced by cross-
stream disturbances is ubiquitous in shear flows. This disturbance growth mechanism, so …