Abstract
We consider three-dimensional turbulence from which vortex stretching is removed. Using direct numerical simulations, we show that in this system a dual cascade is observed, consisting of a forward enstrophy cascade and an inverse helicity cascade. In the inverse cascade range the energy spectrum scaling is proportional to , with being the wave number. In the forward cascade range the spectrum is proportional to with a logarithmic correction.
- Received 16 November 2021
- Accepted 12 August 2022
DOI:https://doi.org/10.1103/PhysRevFluids.7.094601
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