ECPS

Lab Key visual

Welcome to the Emergent Complexity in Physical Systems Laboratory !

We are interested in how seemingly simple physical systems create unexpectedly complex patterns and dynamical behaviour. Examples range from complex laminar turbulent patterns in shear flows to the deformation of droplets in microfluidic applications. We study these systems using several aspects of continuum mechanics and transport theory entwinded with dynamical systems methods and large computer simulations.

Find out more about the people who work here, the research we do, and our publications. Also, we propose master projects.


Publications

2025

The topology of a chaotic attractor in the Kuramoto-Sivashinsky equation

M. Abadie; P. Beck; J. P. Parker; T. M. Schneider 

Chaos (Woodbury, N.Y.). 2025. Vol. 35, num. 1. DOI : 10.1063/5.0237476.

2024

Natural convection in a vertical channel. Part 1. Wavenumber interaction and Eckhaus instability in a narrow domain

Z. Zheng; L. S. Tuckerman; T. M. Schneider 

Journal of Fluid Mechanics. 2024. Vol. 1000, p. A28. DOI : 10.1017/jfm.2024.842.

Natural convection in a vertical channel. Part 2. Oblique solutions and global bifurcations in a spanwise-extended domain

Z. Zheng; L. S. Tuckerman; T. M. Schneider 

Journal of Fluid Mechanics. 2024. Vol. 1000, p. A29. DOI : 10.1017/jfm.2024.840.

Adjoint-based variational methods for computing invariant solutions in spatio-temporally chaotic PDEs

O. Ashtari / T. Schneider (Dir.)  

Lausanne, EPFL, 2024. 

2023

Identifying invariant solutions of wall-bounded three-dimensional shear flows using robust adjoint-based variational techniques

O. Ashtari; T. M. Schneider 

Journal Of Fluid Mechanics. 2023. Vol. 977, p. A7. DOI : 10.1017/jfm.2023.927.

Symmetry-reduced low-dimensional representation of large-scale dynamics in the asymptotic suction boundary layer

M. Engel; O. Ashtari; M. Linkmann 

European Journal Of Mechanics B-Fluids. 2023. Vol. 102, p. 80 – 90. DOI : 10.1016/j.euromechflu.2023.07.007.

Predicting chaotic statistics with unstable invariant tori

J. P. Parker; O. Ashtari; T. M. Schneider 

Chaos. 2023. Vol. 33, num. 8, p. 083111. DOI : 10.1063/5.0143689.

Jacobian-free variational method for computing connecting orbits in nonlinear dynamical systems

O. Ashtari; T. M. Schneider 

Chaos. 2023. Vol. 33, num. 7, p. 073134. DOI : 10.1063/5.0143923.