Turbulent Taylor-Couette flow of dilute polymeric solutions
Instantaneous vortical structures for different radius ratios.
Song, J., Teng, H., Liu, N.*, Ding, H., Lu X.-Y., Khomami, B.* 2019 The correspondence between drag enhancement and vortical structures in turbulent Taylor–Couette flows with polymer additives: a study of curvature dependence. J. Fluid Mech. 881: 602-616.
Song, J., Wan Z.-H., Liu, N.*, Lu X.-Y., Khomami, B.* 2021 A reverse transition route from inertial to elasticity-dominated turbulence in viscoelastic Taylor–Couette flow. J. Fluid Mech. 927, A10.
Song, J., Lin, F., Liu, N.*, Lu X.-Y., Khomami, B.* 2021 Direct numerical simulation of inertio-elastic turbulent Taylor–Couette flow. J. Fluid Mech. 926, A37.
Lin, F., Song, J. Zhao, Z., Liu, N.*, Lu X.-Y., Khomami, B.* 2023 A novel transition route to elastically dominated turbulence in viscoelastic Taylor–Couette flow. J. Non-Newtonian Fluid Mech. 312, 104968.
Lin, F., Song, J., Liu, N.*, Wan Z.-H., Lu X.-Y., Khomami, B.* 2024 Maximum drag enhancement asymptote in turbulent Taylor–Couette flow of dilute polymeric solutions. J. Non-Newtonian Fluid Mech. 323, 105172.
Purely elastic turbulence in the Taylor-Couette flow
Newtonian Taylor-Couette turbulence at Re=10000.
Inertially-dominated turbulence at Re=8000, Wi=30
Purely elastic turbulence at Re=0.0001, Wi=30
Song, J., Liu, N.*, Lu X.-Y., Khomami, B.* 2022 Direct numerical simulation of elastic turbulence in the Taylor–Couette flow: transition pathway and mechanistic insight. J. Fluid Mech. 949, A49.
Song, J., Lin, F., Zhu, Y., Wan Z.-H., Liu, N.*, Lu X.-Y., Khomami, B.* 2023 Self-sustaining cycle of purely elastic turbulence. Phys. Rev. Fluids. 8, 014602.
Song, J. , Zhu, Y., Lin, F., Liu, N.*, Khomami, B.* 2023 Turbulent Taylor–Couette flow of dilute polymeric solutions: a 10-year retrospective. Phil. Trans. R. Soc. Lond. A. 381, 20220132. (Invited review paper)
Turbulent rotating plane Couette flow of dilute polymeric solutions
Instantaneous vortical structures with increasing rotation number.
Zhu, Y., Song, J., Liu, N.*, Lu X., Khomami, B.* 2020 Polymer-induced flow relaminarization and drag enhancement in spanwise-rotating plane Couette flow. J. Fluid Mech. 905, A19.
Zhu, Y., Song, J., Lin, F., Liu, N.*, Lu X., Khomami, B.* 2022 Relaminarization of spanwise-rotating viscoelastic plane Couette flow via a transition sequence from a drag-reduced inertial to a drag-enhanced elasto-inertial turbulent flow. J. Fluid Mech. 931, R7.
Wang, M., Zhao, Z., Gao, A., Song, J., Liu N.* 2023 Rotation effects on turbulence features of viscoelastic spanwise-rotating plane Couette flows. Phys. Fluids. 35, 063105.
Rapidly rotating Rayleigh-Bénard convection and geostrophic turbulence
Taylor columns at Ra=2.5e12, Ek=5e-9.
Geostrophic turbulence at Ra=1e13, Ek=5e-9.
Large-scale vortices at Ra=5e13, Ek=5e-9.
Song, J. *, Shishkina, O.*, Zhu, X.* 2024 Scaling regimes in rapidly rotating thermal convection at extreme Rayleigh numbers. J. Fluid Mech. 984, A45.
Song, J. , Shishkina, O., Zhu, X.* 2024 Direct numerical simulations of rapidly rotating Rayleigh-Bénard convection with Rayleigh number up to 5e13. J. Fluid Mech. (Accepted)
Song, J.*, Kannan, V., Shishkina, O., Zhu, X.* 2024 Direct numerical simulations of the transition between rotation- to buoyancy-dominated regimes in rotating Rayleigh-Bénard convection. Under review.