## 3 Citations

Passive scalar mixing in modulated turbulence

- Physics, Environmental ScienceFluid Dynamics Research
- 2019

We investigate the mixing of a passive scalar in an isotropic turbulent flow in the presence of a time-periodic forcing. The results corroborate recent analytical predictions on the frequency…

Space-time modulation of turbulence in co-flow jets

- PhysicsInternational Journal of Heat and Fluid Flow
- 2020

Periodically Modulated Thermal Convection.

- PhysicsPhysical review letters
- 2020

Numerical simulations of Rayleigh-Bénard convection with time periodic modulation in the temperature boundary condition are performed and it is reported how this modulation can lead to a significant heat flux (Nusselt number Nu) enhancement.

## References

SHOWING 1-10 OF 21 REFERENCES

Mixing in modulated turbulence. Numerical results

- Physics, Environmental Science
- 2016

Direct numerical simulations are carried out to investigate scalar mixing in an isotropic turbulent flow with a time-periodic forcing. For high amplitudes of the modulation, it is shown that the…

Experimental observation of resonances in modulated turbulence

- PhysicsJournal of Fluid Mechanics
- 2003

The response of turbulence to a periodic forcing of the Reynolds number is studied. The turbulent flow is produced in a closed geometry between two counter-rotating disks. The time series of both the…

Turbulence modification by periodically modulated scale-depending forcing

- Environmental Science, Physics
- 2006

Small Scale Response and Modeling of Periodically Forced Turbulence

- Physics
- 2007

The response of the small scales of isotropic turbulence to periodic large scale forcing is studied using two-point closures. The frequency response of the turbulent kinetic energy and dissipation…

Response maxima in modulated turbulence.

- PhysicsPhysical review. E, Statistical, nonlinear, and soft matter physics
- 2003

Isotropic and homogeneous turbulence driven by an energy input modulated in time is studied within a variable range mean-field theory and at certain frequencies the amplitude of the response either almost vanishes or is strongly enhanced.

Diffusion Approximation for Turbulent Scalar Fields

- Physics, Environmental Science
- 1968

A diffusion approximation is derived for the transfer of spectral components of mean‐square fluctuations of a passive scalar quantity advected by an isotropic turbulent flow. This approximation,…

Study of High-Reynolds Number Isotropic Turbulence by Direct Numerical Simulation

- Physics
- 2009

We review studies of the statistics of isotropic turbulence in an incompressible fluid at high Reynolds numbers using direct numerical simulation (DNS) from the viewpoint of fundamental physics. The…

Effects of fluctuating energy input on the small scales in turbulence

- Physics, Environmental ScienceJournal of Fluid Mechanics
- 2013

Abstract In the standard cascade picture of three-dimensional turbulent fluid flows, energy is input at a constant rate at large scales. Energy is then transferred to smaller scales by an…

Diffusion Approximation to Inertial Energy Transfer in Isotropic Turbulence

- Physics
- 1967

A diffusion approximation is described to the nonlocal inertial energy transfer between wavenumber components in the spectral representation of an isotropic turbulent flow. The approximation yields…

Dissipation in unsteady turbulence

- Physics
- 2017

Recent experiments and simulations have shown that unsteady turbulent flows, before reaching a dynamic equilibrium state, display a universal behaviour. We show that the observed universal…