Cascades and transitions in turbulent flows
Turbulent flows are characterized by the non-linear cascades of energy and other inviscid
invariants across a huge range of scales, from where they are injected to where they are …
invariants across a huge range of scales, from where they are injected to where they are …
Mathematical and physical ideas for climate science
The climate is a forced and dissipative nonlinear system featuring nontrivial dynamics on a
vast range of spatial and temporal scales. The understanding of the climate's structural and …
vast range of spatial and temporal scales. The understanding of the climate's structural and …
[HTML][HTML] On the eddy-resolving capability of high-order discontinuous Galerkin approaches to implicit LES/under-resolved DNS of Euler turbulence
We present estimates of spectral resolution power for under-resolved turbulent Euler flows
obtained with high-order discontinuous Galerkin (DG) methods. The '1% rule'based on …
obtained with high-order discontinuous Galerkin (DG) methods. The '1% rule'based on …
[HTML][HTML] A comparative study on polynomial dealiasing and split form discontinuous Galerkin schemes for under-resolved turbulence computations
This work focuses on the accuracy and stability of high-order nodal discontinuous Galerkin
(DG) methods for under-resolved turbulence computations. In particular we consider the …
(DG) methods for under-resolved turbulence computations. In particular we consider the …
Dissipation-range fluid turbulence and thermal noise
We revisit the issue of whether thermal fluctuations are relevant for incompressible fluid
turbulence and estimate the scale at which they become important. As anticipated by …
turbulence and estimate the scale at which they become important. As anticipated by …
On the violation of the zeroth law of turbulence in space plasmas
The zeroth law of turbulence states that, for fixed energy input into large-scale motions, the
statistical steady state of a turbulent system is independent of microphysical dissipation …
statistical steady state of a turbulent system is independent of microphysical dissipation …
Numerical dissipation vs. subgrid-scale modelling for large eddy simulation
This study presents an alternative way to perform large eddy simulation based on a targeted
numerical dissipation introduced by the discretization of the viscous term. It is shown that this …
numerical dissipation introduced by the discretization of the viscous term. It is shown that this …
Hyperviscosity, Galerkin truncation, and bottlenecks in turbulence
It is shown that the use of a high power α of the Laplacian in the dissipative term of
hydrodynamical equations leads asymptotically to truncated inviscid conservative dynamics …
hydrodynamical equations leads asymptotically to truncated inviscid conservative dynamics …
[LIVRE][B] A comprehensive study of detached eddy simulation
C Mockett - 2009 - books.google.com
Detached-eddy simulation (DES) is a prominent example of a new family of methods that
seek to bridge the gap existing in terms of computational cost and predictive accuracy …
seek to bridge the gap existing in terms of computational cost and predictive accuracy …
Statistical equilibrium of large scales in three-dimensional hydrodynamic turbulence
We investigate experimentally three-dimensional (3D) hydrodynamic turbulence at scales
larger than the forcing scale. We manage to perform a scale separation between the forcing …
larger than the forcing scale. We manage to perform a scale separation between the forcing …