Visualization of the velocity field in a moderately turbulent Kolmogorov flow (spatial resolution 128^3). The flow is sustained by a steady unidirectional force (here along the X axis) with a monochromatic sinusoidal dependence proportional to sin(k Y). The sinusoidal profile is clearly reflected in the large scale velocity field in the X-Y planes (visible at the beginning and at the end of the movie).
Have a look to our new fully-resolved numerical study on JFM https://www.doi.org/10.1017/jfm.2022.197
Particles and copepods 3D trajectory tracking in a turbulent experimental flow by means of particle image velocimetry (duration: 6 months, from feb-march 2022, for M2 students in the french system or equivalent level for candidates from abroad).
More info here (french only): [6 months internship]. Applications to be sent by email to F.G.Schmitt and myself.
How does the shape of ice depend on the lateral and vertical confinement in a convective cell? In which conditions can we get the maximal amount of ice? How many possible equilibrium states can we observe for this system? We have tried to rationalize these questions by means of simulations and experiments. Read about it in Equilibrium states of the ice-water front in a differentially heated rectangular cell, Ziqi Wang, Enrico Calzavarini and Chao Sun [ https://arxiv.org/abs/2108.13253 ] soon also on Europhys Lett.
Read about our recent work on planktonic population dynamics around an obstacle in open flow. It’s Alice Jaccod PhD work “Predator-prey plankton dynamics in turbulent wakes behind islands”, in collaboration with S. Chibbaro and S. Berti . Now published in Phys. Rev. Fluids [https://doi.org/10.1103/PhysRevFluids.6.103802] and also available on Arxiv [ https://arxiv.org/abs/2105.05647 ].
The last preprint on Himani’s PhD work is out: Statistical properties of two-dimensional elastic turbulence, Himani Garg, Enrico Calzavarini and Stefano Berti , http://arxiv.org/abs/2104.08951