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physics.flu-dyn2026
Physical mechanism of turbulence attenuation by polymers from a timescale perspective
Hayato Masuda, Yusuke Koide, Yutaro Motoori +1
To elucidate the physical mechanism of turbulence attenuation by polymers at each scale, we conduct direct numerical simulations of homogeneous isotropic turbulence in dilute polym…
physics.flu-dyn2026
Lagrangian velocity statistics of homogeneous isotropic turbulence in dilute polymer solutions
Yusuke Koide, Susumu Goto
We conduct direct numerical simulations of homogeneous isotropic turbulence in dilute polymer solutions to investigate the Lagrangian velocity statistics. We show how polymers modu…
physics.flu-dyn2025
Relationship between the power spectral density of the Lagrangian velocity and the hierarchy of coherent vortices in turbulence
Yusuke Koide, Susumu Goto
We conduct direct numerical simulations of developed turbulence in a periodic cube to investigate the formation mechanism of the power spectral density of the Lagrangian velocity.…