8 papers
Do extreme events trigger turbulence decay? - a numerical study of turbulence decay time in pipe flows
Takahiro Nemoto, Alexandros Alexakis
Turbulence locally created in laminar pipe flows shows sudden decay or splitting after a stochastic waiting time. In laboratory experiments, the mean waiting time was observed to i…
Colloidal transport in bacteria suspensions: from bacteria scattering to anomalous and enhanced diffusion
Antoine Lagarde, Noémie Dagès, Takahiro Nemoto +3
Colloids coupled to a bath of swimming cells generically display enhanced diffusion. This transport dynamics stems from a subtle interplay between the active and passive particles…
Dissipation controls transport and phase transitions in active fluids: Mobility, diffusion and biased ensembles
Étienne Fodor, Takahiro Nemoto, Suriyanarayanan Vaikuntanathan
Active fluids operate by constantly dissipating energy at the particle level to perform a directed motion, yielding dynamics and phases without any equilibrium equivalent. The emer…
Imitating non-equilibrium steady states using time-varying equilibrium force in many-body diffusive systems
Ohad Shpielberg, Takahiro Nemoto
An equivalence between non equilibrium steady states (NESS) driven by a time-independent force and stochastic pumps (SP) stirred by a time-varying conservative force is studied for…
Rare transitions to thin-layer turbulent condensates
Adrian van Kan, Takahiro Nemoto, Alexandros Alexakis
Turbulent flows in a thin layer can develop an inverse energy cascade leading to spectral condensation of energy when the layer height is smaller than a certain threshold. These sp…
How dissipation constrains fluctuations in nonequilibrium liquids: Diffusion, structure and biased interactions
Laura Tociu, Étienne Fodor, Takahiro Nemoto +1
The dynamics and structure of nonequilibrium liquids, driven by non-conservative forces which can be either external or internal, generically hold the signature of the net dissipat…