Publications

Instabilities, Turbulence & Pattern Formation Group

Department of Aeronautics, Imperial College London 

PUBLICATIONS

Only peer-reviewed journal publications are presented. Preprints can be sent upon request.

Instability of tilted shear flow in a strongly stratified and viscous medium

L. Fung & Y. Hwang, Sub judice.

               2019

Finding extremal periodic orbits with polynomial optimization, with application to a nine-mode model of shear flow

M. Lakshimi, G. Fantuzzi, J. D. Fernandez-Caballero, Y. Hwang & S. I.  Chernyshenko, Sub judice.

2019

Shear stress-driven flow: the state space of near-wall turbulence at infinite friction Reynolds number

P. Doohan, A. P. Willis & Y. Hwang, J. Fluid Mech. To appear.

2019

The instability of gyrotactically-trapped cell layers

S. Maretvadakethope, E. E. Keaveny & Y. Hwang, J. Fluid Mech., 868 R5. PDF

 2019

 

Exact coherent states of attached eddies in channel flow

Q. Yang, A. P. Willis & Y. Hwang, J. Fluid Mech. 862, p1029. PDF

 

2019


Quasi-linear approximation of exact coherent states in parallel shear flows

M. Pausch, Q. Yang, Y. Hwang & B. Eckhardt, Fluid Dyn. Res. , 51, 011402. PDF

Special Issue in Fluid Dynamics of Near-wall Turbulence


2019

Phase-space dynamics of opposition control in wall-bounded turbulent flows

J. I. Ibrahim, Q. Yang, P. Doohan & Y. Hwang, J. Fluid Mech., 861, p29. PDF

2019

Evaporation-driven convective flows in suspensions of non-motile bacteria

J. Dunstan, K. J. Lee, S. F. Park, Y. Hwang & R. E. Goldstein, Phys. Rev. Fluids. 3, 123102. PDF

2018

Scale interactions and spectral energy transfer in turbulent channel flow

M. Cho, Y. Hwang & H. Choi, J. Fluid Mech., 854, p474. PDF

              2018

Energy production and self-sustained turbulence at the Kolmogorov microscale in Couette flow

Q. Yang, A. P. Willis & Y. Hwang, J. Fluid Mech. 834, p531. PDF.

2018

Streak instability in turbulent channel flow: the seeding mechanism of  large-scale motions

M. de Giovanetti, H. J. Sung, & Y. Hwang, J. Fluid Mech. 832, p483. PDF

2017


Streak instability in near-wall turbulence revisited

A. Cassinelli, M. de Giovanetti, Y.  Hwang, J. Turbulence, 18(5), p443. PDF

Special Issue for 70th birthday of Prof. Javier Jimenez.


2017


Self-sustaining process at all scales in  wall-bounded  turbulent shear flows

C. Cossu & Y. Hwang, Phil. Trans. R. Soc. A, 375, 20160088. PDF

Theme Issue on  ‘Toward the development of high-fidelity models of wall turbulence at large Reynolds number'.


2017

Mesolayer of attached eddies in turbulent channel flow

Y. Hwang, Phys. Rev. Fluids,  1(6), 064401. PDF

2016

Skin-friction generation by attached eddies in turbulent channel flow

M. de Giovanetti, Y. Hwang & H. Choi, J. Fluid Mech.  808, p511. PDF

2016

Invariant solutions of minimal large-scale structures in turbulent channel flow

Y. Hwang, A. P. Willis & C. Cossu, J. Fluid Mech. 802, R1. PDF

2016

Self-sustaining process of minimal attached eddies in turbulent channel flow

Y. Hwang & Y. Bengana, J. Fluid Mech. 795, p708. PDF

2016

Model of cellular mechanotransduction via actin stress fibre networks

C. L. M. Gouget, Y. Hwang, A. I. Barakat, Biomech. Model. Mechanobiol. 15(2), p331. PDF

2016

On the self-sustained nature of large-scale motions in tubulent Couette flow

S. Rawat, C. Cossu, Y. Hwang & F. Rincon, J. Fluid Mech.  782, p515. PDF

2015

Characterizing cell adhesion using micropipette aspiration

B. Hogan, A. Babataheri, Y. Hwang, A. I. Barakat & J. Husson, Biophys. J. 109, p209. PDF

2015

Statistical structure of self-sustaining attached eddies in turbulent channel flow

Y. Hwang, J. Fluid Mech. 767, p254. PDF

2015


Structural sensitivities of  soft and steep nonlinear global modes in spatially developing media

Y. Hwang, Eur. J. Mech. - B/Fluids,  49,  Part B, p322.  PDF

Special Issue on `Trends in Hydrodynamic Instability' in hornour of  Prof. Patrick Huerre.

The article is dedicated to him. See also the 'Preface'  by Lutz Lesshafft. PDF


2015


Stability of downflowing gyrotatic microorganism suspensions in  a two-dimensional vertical channel

Y. Hwang, & T. J. Pedley, J. Fluid Mech. 749, p750. PDF


2014


Bioconvection under uniform shear: linear stability analysis

Y. Hwang, & T. J. Pedley, J. Fluid Mech. 738, p522. PDF

Featured in `Focus on Fluids'  in the Journal of Fluid Mechanics.

See also the aricle `Swimming in Shear' by David Saintillan. PDF


2014


Intracellular regulation of cell signaling cascades: how location makes difference

Y. Hwang, P. Kumar & A. I. Barakat, J. Math. Biol., 69(1), p213. PDF

 

2014

Stabilization of absolute instability in spanwise wavy two-dimensional wakes

Y. Hwang, J. Kim & H. Choi, J. Fluid Mech. 727, p346. PDF

2013


Near-wall turbulent fluctuations in the absence of wide outer motions

Y. Hwang, J. Fluid Mech. 723, p264. PDF


2013

Mechanisms of cytoskeleton-mediated mechanical signal transmission in cells

Y. Hwang, C.L.M. Gouget & A. I. Barakat, Comm. Int. Biol. 5(6) 1. PDF

Invited article by the journal editor

2012

Dynamics of mechanical signal transmission through prestressed stress fibers

Y. Hwang & A. I. Barakat, PLoS ONE , 7(4) e35343. PDF

2012

Self-sustained processes in the logarithmic layer of turbulent channel flows

Y. Hwang & C. Cossu, Phys. Fluids 23, 061702. PDF

2011


On the stability of large-scale streaks in turbulent Poiseulle and Couette flows

J Park, Y. Hwang & C. Cossu, C. R. Mecanique 339(1), p1. PDF


2011

Optimally amplified large-scale streaks and drag reduction in the turbulent pipe flow

A. P. Willis, Y. Hwang & C. Cossu, 2010, Phys. Rev. E 82, 036321. PDF

2010

Self-sustained process at large scale in turbulent channel flow

Y. Hwang & C. Cossu, Phys. Rev. Lett. 105, 044505. PDF

2010

Linear non-normal energy amplification of harmonic and stochastic forcing in the turbulent channel flow

Y. Hwang & C. Cossu, J. Fluid Mech. 664, p51. PDF

2010

Amplification of coherent streaks in the turbulent Couette flow: an input-output analysis at low Reynolds numbers

Y. Hwang & C. Cossu, J. Fluid Mech. 643, p333. PDF

2010

Sensitivity of global instability of spatially developing flow in weakly and fully nonlinear regimes

Y. Hwang & H. Choi, Phys. Fluids 20, 071703. PDF

2008

Control of absolute instability by basic-flow modification in a parallel wake at low Reynolds number

Y. Hwang & H. Choi, J. Fluid Mech. 560, p465. PDF

2006

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