5 papers
Dynamic Triad Interactions and Evolving Turbulence -- Part 2: Implications for Practical Signals
Preben Buchhave, Clara Velte
We investigate how momentum and kinetic energy is transferred between Fourier components (the so-called triad interactions) in measured turbulent flow fields, i.e. in practical, di…
Dynamic Triad Interactions and Evolving Turbulence -- Part 1: 4D Modal Interactions
Preben Buchhave, Clara M. Velte
We investigate the effect of a four-dimensional Fourier transform on the formulation of the Navier-Stokes equation in Fourier space and the way the energy is transferred between Fo…
Generative Super-Resolution of Turbulent Flows via Stochastic Interpolants
Martin Schiødt, Nikolaj Takata Mücke, Clara Marika Velte
Capturing the intricate multiscale features of turbulent flows remains a fundamental challenge due to the limited resolution of experimental data and the computational cost of high…
Exact second-order spatio-temporal structure-function relationships in non-stationary incompressible turbulent flows with Reynolds decomposition and phase averaging
Yisheng Zhang, Clara M. Velte
The Karman-Howarth-Monin-Hill (KHMH) equation has been widely applied to scale-by-scale turbulent energy cascade studies in recent years, however, the forms and interpretations are…
The role of symmetries in the axisymmetric jet mean velocity profile development
Preben Buchhave, Mengjia Ren, Clara Marika Velte
The fact that physical conservation laws can be derived from symmetry properties of space and time, as shown by Emily Nöther, has been utilized in predicting the development of th…