3 papers
physics.flu-dyn2025
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…
physics.flu-dyn2025
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…
physics.flu-dyn2025
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…