@article{wang_Hesisan_jfm2022,

title = {What is observable from wall data in turbulent channel flow?},

author = {Qi Wang and Mengze Wang and Tamer A. Zaki},

doi = {10.1017/jfm.2022.295},

year  = {2022},

date = {2022-01-01},

journal = {Journal of Fluid Mechanics},

volume = {941},

pages = {A48},

publisher = {Cambridge University Press},

keywords = {Channel, Data assimilation, Turbulence},

pubstate = {published},

tppubtype = {article}

}

@article{wang_Synch_jfm2022,

title = {Synchronization of turbulence in channel flow},

author = {Mengze Wang and Tamer A. Zaki},

doi = {10.1017/jfm.2022.397},

year  = {2022},

date = {2022-01-01},

journal = {Journal of Fluid Mechanics},

volume = {943},

pages = {A4},

publisher = {Cambridge University Press},

keywords = {Channel, Data assimilation, Turbulence},

pubstate = {published},

tppubtype = {article}

}

@article{esteghamatian_jfm2022,

title = {Spatiotemporal characterization of turbulent channel flow with a hyperelastic compliant wall},

author = {Amir Esteghamatian and Joseph Katz and Tamer A. Zaki},

doi = {10.1017/jfm.2022.354},

year  = {2022},

date = {2022-01-01},

journal = {Journal of Fluid Mechanics},

volume = {942},

pages = {A35},

publisher = {Cambridge University Press},

keywords = {Channel, Compliant walls, Turbulence, Viscoelastic},

pubstate = {published},

tppubtype = {article}

}

@article{wang_Stochastic_jfm2022,

title = {Origin of enhanced skin friction at the onset of boundary-layer transition},

author = {Mengze Wang and Gregory L. Eyink and Tamer A. Zaki},

doi = {10.1017/jfm.2022.296},

year  = {2022},

date = {2022-01-01},

journal = {Journal of Fluid Mechanics},

volume = {941},

pages = {A32},

publisher = {Cambridge University Press},

keywords = {Channel, Data assimilation, Drag, Turbulence},

pubstate = {published},

tppubtype = {article}

}

@article{fowler_jfm2022,

title = {A Lagrangian relaxation towards equilibrium wall model for large eddy simulation},

author = {Mitchell Fowler and Tamer A. Zaki and Charles Meneveau},

doi = {10.1017/jfm.2021.1156},

year  = {2022},

date = {2022-01-01},

journal = {Journal of Fluid Mechanics},

volume = {934},

pages = {A44},

publisher = {Cambridge University Press},

keywords = {Channel, LES, Turbulence},

pubstate = {published},

tppubtype = {article}

}

@article{mons_prf2021,

title = {Ensemble-variational assimilation of statistical data in large-eddy simulation},

author = {Vincent Mons and Yifan Du and Tamer A. Zaki},

url = {https://link.aps.org/doi/10.1103/PhysRevFluids.6.104607},

doi = {10.1103/PhysRevFluids.6.104607},

year  = {2021},

date = {2021-10-01},

journal = {Phys. Rev. Fluids},

volume = {6},

issue = {10},

pages = {104607},

publisher = {American Physical Society},

keywords = {Channel, Data assimilation, Ensemble Variational Methods, EnVar, LES, Turbulence},

pubstate = {published},

tppubtype = {article}

}

@article{ghanash_prf2021,

title = {Large eddy simulation of transitional channel flow using a machine learning classifier to distinguish laminar and turbulent regions},

author = {Ghanesh Narasimhan and Charles Meneveau and Tamer A. Zaki},

url = {https://link.aps.org/doi/10.1103/PhysRevFluids.6.074608},

doi = {10.1103/PhysRevFluids.6.074608},

year  = {2021},

date = {2021-07-01},

journal = {Phys. Rev. Fluids},

volume = {6},

issue = {7},

pages = {074608},

publisher = {American Physical Society},

keywords = {Channel, LES, Transition},

pubstate = {published},

tppubtype = {article}

}

@article{esteghamatian_jfm2021,

title = {The dynamics of settling particles in vertical channel flows: gravity, lift and particle clusters},

author = {Amir Esteghamatian and Tamer A. Zaki},

doi = {10.1017/jfm.2021.304},

year  = {2021},

date = {2021-01-01},

journal = {Journal of Fluid Mechanics},

volume = {918},

pages = {A33},

publisher = {Cambridge University Press},

keywords = {Channel, Particles, Turbulence, Viscoelastic},

pubstate = {published},

tppubtype = {article}

}

@article{wang_jfm2021,

title = {State estimation in turbulent channel flow from limited observations},

author = {Mengze Wang and Tamer A. Zaki},

doi = {10.1017/jfm.2021.268},

year  = {2021},

date = {2021-01-01},

journal = {Journal of Fluid Mechanics},

volume = {917},

pages = {A9},

publisher = {Cambridge University Press},

keywords = {Adjoint, Channel, Data assimilation, Turbulence},

pubstate = {published},

tppubtype = {article}

}

@article{esteghamatian_zaki_2020,

title = {Viscoelasticity and the dynamics of concentrated particle suspension in channel flow},

author = {Amir Esteghamatian and Tamer A Zaki},

doi = {10.1017/jfm.2020.525},

year  = {2020},

date = {2020-01-01},

journal = {Journal of Fluid Mechanics},

volume = {901},

pages = {A25},

publisher = {Cambridge University Press},

keywords = {Channel, Drag, Particles, Polymer, Viscoelastic},

pubstate = {published},

tppubtype = {article}

}

@article{eyink_gupta_zaki_2020b,

title = {Stochastic Lagrangian dynamics of vorticity. Part 2. Application to near-wall channel-flow turbulence},

author = {Gregory L Eyink and Akshat Gupta and Tamer A Zaki},

doi = {10.1017/jfm.2020.492},

year  = {2020},

date = {2020-01-01},

journal = {Journal of Fluid Mechanics},

volume = {901},

pages = {A3},

publisher = {Cambridge University Press},

keywords = {Channel, Drag, Navier-Stokes, Turbulence},

pubstate = {published},

tppubtype = {article}

}

@article{eyink_gupta_zaki_2020,

title = {Stochastic Lagrangian dynamics of vorticity. Part 1. General theory for viscous, incompressible fluids},

author = {Gregory L Eyink and Akshat Gupta and Tamer A Zaki},

doi = {10.1017/jfm.2020.491},

year  = {2020},

date = {2020-01-01},

journal = {Journal of Fluid Mechanics},

volume = {901},

pages = {A2},

publisher = {Cambridge University Press},

keywords = {Channel, Drag, Navier-Stokes, Turbulence},

pubstate = {published},

tppubtype = {article}

}

@article{esteghamatian_jfm2019,

title = {Dilute suspension of neutrally buoyant particles in viscoelastic turbulent channel flow},

author = {Amir Esteghamatian and Tamer A Zaki},

doi = {10.1017/jfm.2019.483},

year  = {2019},

date = {2019-01-01},

journal = {Journal of Fluid Mechanics},

volume = {875},

pages = {286--320},

publisher = {Cambridge University Press},

keywords = {Channel, Drag, Particles, Polymer, Viscoelastic},

pubstate = {published},

tppubtype = {article}

}

@article{wang_jfm2019,

title = {Spatial reconstruction of steady scalar sources from remote measurements in turbulent flow},

author = {Qi Wang and Yosuke Hasegawa and Tamer A Zaki},

doi = {10.1017/jfm.2019.241},

year  = {2019},

date = {2019-01-01},

journal = {Journal of Fluid Mechanics},

volume = {870},

pages = {316--352},

publisher = {Cambridge University Press},

keywords = {Adjoint, Channel, Optimization, Scalar, Scalar dispersion},

pubstate = {published},

tppubtype = {article}

}

@article{hameduddin_jfm2019b,

title = {The mean conformation tensor in viscoelastic turbulence},

author = {Ismail Hameduddin and Tamer A Zaki},

doi = {10.1017/jfm.2019.46},

year  = {2019},

date = {2019-01-01},

journal = {Journal of Fluid Mechanics},

volume = {865},

pages = {363--380},

publisher = {Cambridge University Press},

keywords = {Channel, Polymer, Shear, Viscoelastic},

pubstate = {published},

tppubtype = {article}

}

@article{mons_jcp2019,

title = {Kriging-enhanced ensemble variational data assimilation for scalar-source identification in turbulent environments},

author = {Vincent Mons and Qi Wang and Tamer A Zaki},

url = {http://www.sciencedirect.com/science/article/pii/S0021999119305406},

doi = {https://doi.org/10.1016/j.jcp.2019.07.054},

issn = {0021-9991},

year  = {2019},

date = {2019-01-01},

journal = {Journal of Computational Physics},

volume = {398},

pages = {108856},

abstract = {Various ensemble-based variational (EnVar) data assimilation (DA) techniques are developed to reconstruct the spatial distribution of a scalar source in a turbulent channel flow resolved by direct numerical simulation (DNS). In order to decrease the computational cost of the DA procedure and improve its performance, Kriging-based interpolation is combined with EnVar DA, which enables the consideration of relatively large ensembles with moderate computational resources. The performance of the proposed Kriging-EnVar (KEnVar) DA scheme is assessed and favorably compared to that of standard EnVar and adjoint-based variational DA in various scenarios. Sparse regularization is implemented in the framework of EnVar DA in order to better tackle the case of concentrated scalar emissions. The problem of optimal sensor placement is also addressed, and it is shown that significant improvement in the quality of the reconstructed source can be obtained without supplementary computational cost once the ensemble required by the DA procedure is formed.},

keywords = {Channel, Data assimilation, Optimization, Scalar dispersion, Sensor placement, Source identification, Turbulence},

pubstate = {published},

tppubtype = {article}

}

@article{hameduddin_jfm2019,

title = {Perturbative expansions of the conformation tensor in viscoelastic flows},

author = {I Hameduddin and D Gayme and T A Zaki},

url = {https://engineering.jhu.edu/zaki/wp-content/uploads/2018/12/Hameduddin_JFM_2019.pdf},

year  = {2019},

date = {2019-01-01},

journal = {Journal of Fluid Mechanics},

volume = {858},

pages = {377-406},

keywords = {Channel, Polymer, Shear, Viscoelastic},

pubstate = {published},

tppubtype = {article}

}

@article{hameduddin_jfm2018,

title = {Geometric decomposition of the conformation tensor in viscoelastic turbulence},

author = {I Hameduddin and C Meneveau and T A Zaki and D Gayme},

url = {https://engineering.jhu.edu/zaki/wp-content/uploads/2018/12/Hameduddin_JFM_2018.pdf},

year  = {2018},

date = {2018-01-01},

journal = {Journal of Fluid Mechanics},

volume = {842},

pages = {395-427},

keywords = {Channel, Polymer, Shear, Viscoelastic},

pubstate = {published},

tppubtype = {article}

}

@article{ismail_ijhff2018,

title = {The effect of cube-roughened walls on the response of rough-to-smooth (RTS) turbulent channel flows},

author = {U Ismail and T A Zaki and P A Durbin},

url = {https://engineering.jhu.edu/zaki/wp-content/uploads/2018/12/Ismail_IJHFF_2018.pdf},

year  = {2018},

date = {2018-01-01},

journal = {International Journal of Heat and Fluid Flow},

volume = {72},

pages = {174-185},

keywords = {Channel, Roughness, Turbulence},

pubstate = {published},

tppubtype = {article}

}

@article{ismail_jfm2018,

title = {Simulations of rib-roughened rough-to-smooth turbulent channel flows},

author = {U Ismail and T A Zaki and P A Durbin},

url = {https://engineering.jhu.edu/zaki/wp-content/uploads/2018/12/Ismail_JFM_2018.pdf},

year  = {2018},

date = {2018-01-01},

journal = {Journal of Fluid Mechanics},

volume = {843},

pages = {419-449},

keywords = {Channel, Roughness, Turbulence},

pubstate = {published},

tppubtype = {article}

}

@article{hameduddin_arxiv2018,

title = {Scaling of energy amplification in viscoelastic channel and Couette flow},

author = {I Hameduddin and T A Zaki and D Gayme},

year  = {2018},

date = {2018-01-01},

journal = {arXiv},

volume = {1803.06880},

keywords = {Channel, Polymer, Shear, Viscoelastic},

pubstate = {published},

tppubtype = {article}

}

@article{haward_note2018,

title = {Publisher's Note: Poiseuille flow over a wavy surface [Phys. Rev. Fluids 2, 124102 (2017)]},

author = {S J Haward and J Page and T A Zaki and A Q Shen},

doi = {https://doi.org/10.1103/PhysRevFluids.3.019901},

year  = {2018},

date = {2018-01-01},

journal = {Physical Review fluids},

volume = {3},

number = {1},

pages = {019901},

keywords = {Channel, Polymer, Shear, Viscoelastic},

pubstate = {published},

tppubtype = {article}

}

@article{haward_pof2018,

title = {``Phase diagram'' for viscoelastic Poiseuille flow over a wavy surface},

author = {S J Haward and J Page and T A Zaki and A Q Shen},

url = {https://engineering.jhu.edu/zaki/wp-content/uploads/2018/12/Haward_PoF_2018.pdf},

year  = {2018},

date = {2018-01-01},

journal = {Physics of Fluids},

volume = {30},

number = {11},

pages = {113101},

keywords = {Channel, Polymer, Shear, Viscoelastic},

pubstate = {published},

tppubtype = {article}

}

@article{haward_prf2018,

title = {Inertioelastic Poiseuille flow over a wavy surface},

author = {S J Haward and J Page and T A Zaki and A Q Shen},

url = {https://engineering.jhu.edu/zaki/wp-content/uploads/2018/12/Haward_PRF_2018.pdf},

year  = {2018},

date = {2018-01-01},

journal = {Physical Review fluids},

volume = {3},

number = {9},

pages = {091302},

keywords = {Channel, Polymer, Shear, Viscoelastic},

pubstate = {published},

tppubtype = {article}

}

@article{haward_prf2017,

title = {Poisseuille flow over a wavy surface},

author = {S J Haward and A Q Shen and J Page and T A Zaki},

doi = {https://engineering.jhu.edu/zaki/wp-content/uploads/2018/12/Haward_PRF_2017.pdf},

year  = {2017},

date = {2017-01-01},

journal = {Physical Review fluids},

volume = {2},

number = {124102},

pages = {1-13},

keywords = {Channel, Polymer, Shear, Viscoelastic},

pubstate = {published},

tppubtype = {article}

}

@article{sjlee_jfm2017,

title = {Simulations of natural transition in viscoelastic channel flow},

author = {S J Lee and T A Zaki},

url = {https://engineering.jhu.edu/zaki/wp-content/uploads/2018/12/SJLee_JFM_2017.pdf},

year  = {2017},

date = {2017-01-01},

journal = {Journal of Fluid Mechanics},

volume = {820},

pages = {232--262},

keywords = {Channel, Drag, Polymer, Shear, Transition, Viscoelastic},

pubstate = {published},

tppubtype = {article}

}

@article{hwang_jfm2016,

title = {Inner-outer interactions of large-scale structures in turbulent channel flow},

author = {Jinyul Hwang and Jin Lee and Hyung Jin Sung and Tamer A Zaki},

url = {https://engineering.jhu.edu/zaki/wp-content/uploads/2018/12/Hwang_JFM_2016.pdf},

year  = {2016},

date = {2016-01-01},

journal = {J. Fluid Mechanics},

volume = {790},

pages = {128-157},

keywords = {Channel, Conditional Sampling, Turbulence, Very-large-scale Motion},

pubstate = {published},

tppubtype = {article}

}

@article{lee_ftc2015,

title = {Effect of Reynolds number on turbulent drag reduction by superhydrophobic surface textures},

author = {Jin Lee and Thomas O Jelly and Tamer A Zaki},

url = {https://engineering.jhu.edu/zaki/wp-content/uploads/2018/12/Lee_FTC_2015.pdf},

year  = {2015},

date = {2015-01-01},

journal = {Flow, Turbulence & Combustion},

volume = {95},

pages = {277 - 300},

keywords = {Channel, Conditional Sampling, Drag, Streaks, Superhydrophobic, Turbulence},

pubstate = {published},

tppubtype = {article}

}

@article{agarwal_jfm2014,

title = {Linear and non-linear evolution of a localized disturbance in polymeric channel flow},

author = {Akshat Agarwal and Luca Brandt and Tamer A Zaki},

url = {https://engineering.jhu.edu/zaki/wp-content/uploads/2018/12/Agarwal_JFM_2014.pdf},

year  = {2014},

date = {2014-01-01},

journal = {Journal of Fluid Mechanics},

volume = {760},

pages = {278 -- 303},

keywords = {Channel, Polymer, Transition, Viscoelastic},

pubstate = {published},

tppubtype = {article}

}

@article{jelly_pof2014,

title = {Turbulence and skin-friction modification in channel flow with streamwise-aligned superhydrophobic surface textures},

author = {Thomas O Jelly and Seo Yoon Jung and Tamer A Zaki},

url = {https://engineering.jhu.edu/zaki/wp-content/uploads/2018/12/Jelly_PoF_2014.pdf},

year  = {2014},

date = {2014-01-01},

journal = {Physics of Fluids},

volume = {26},

number = {095102},

keywords = {Channel, Drag, Superhydrophobic, Turbulence},

pubstate = {published},

tppubtype = {article}

}

@article{zhang_jfm2013,

title = {Linear stability analysis of channel flow of viscoelastic Oldroyd-B and FENE-P fluids},

author = {Mengqi Zhang and Iman Lashgari and Tamer A Zaki and Luca Brandt},

url = {https://engineering.jhu.edu/zaki/wp-content/uploads/2018/12/Zhang_JFM_2013.pdf},

year  = {2013},

date = {2013-01-01},

journal = {Journal of Fluid Mechanics},

volume = {737},

pages = {249-279},

keywords = {Channel, Polymer, Stability, Tollmien-Schichting, Viscoelastic},

pubstate = {published},

tppubtype = {article}

}

@article{naraigh_ijmf2011,

title = {Interfacial instability in turbulent flow over a liquid film in a channel},

author = {Lennon O Naraigh and Peter D M Spelt and Omar K Matar and Tamer A Zaki},

url = {https://engineering.jhu.edu/zaki/wp-content/uploads/2018/12/ONaraigh_IJMF_2011.pdf},

year  = {2011},

date = {2011-01-01},

journal = {International Journal of Multiphase Flow},

volume = {37},

number = {7},

pages = {812-830},

keywords = {Channel, Instability, Interface, Two-Fluid},

pubstate = {published},

tppubtype = {article}

}

@article{naraigh_jfm2011,

title = {Turbulent flow over a liquid layer revisited: multi-equation turbulence modelling},

author = {Lennon O Naraigh and Peter D M Spelt and Tamer A Zaki},

url = {https://engineering.jhu.edu/zaki/wp-content/uploads/2018/12/ONaraigh_JFM_2011.pdf},

year  = {2011},

date = {2011-01-01},

journal = {Journal of Fluid Mechanics},

volume = {683},

pages = {357-394},

keywords = {Channel, Instability, Interface, Two-Fluid},

pubstate = {published},

tppubtype = {article}

}