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 parallel shear flow in a strongly stratified and viscous medium L. Fung & Y. Hwang, Sub judice. | 2020 |

Spectral energetics of a quasilinear approximation in uniform shear turbulence C. G. Hernandez & Y. Hwang, Sub judice. | 2020 |

Bifurcation and stability of downflowing gyrotactic micro-organism suspensions in a vertical pipe L. Fung, R. N. Bearon & Y. Hwang, Sub judice. | 2020 |

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. | 2020 |

Attached eddy model revisited using a minimal quasilinear approximation Y. Hwang & B. Eckhardt, Sub judice. | 2020 |

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. 874. p606. PDF | 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 â€˜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 |

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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