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physics.flu-dyn2005★ 47 cited
Multiscale Mixing Efficiencies for Steady Sources
Charles R. Doering, Jean-Luc Thiffeault
Multiscale mixing efficiencies for passive scalar advection are defined in terms of the suppression of variance weighted at various length scales. We consider scalars maintained by…
physics.flu-dyn2004
Low-wavenumber forcing and turbulent energy dissipation
Charles R. Doering, Nikola P. Petrov
A popular method of forcing the fluid in Direct Numerical Simulations of turbulence is to take the body force proportional to the projection of the velocity of the fluid onto its l…