Fluid mechanics, and mechanics in general, occupies an especial place in physics because the equations of motion are known and generally trusted. That makes the connection between cause and effect relatively easy to study, essentially amounting to performing simulations or well-planned experiments. The inverse way, from effect to cause, has received less attention, to the point that its very definition is open to debate. It is the premise of the proposed conference that the advent of ever faster computers is beginning to make the inverse problem more tractable, and that the time is ripe for a discussion of what can be done, how to do it, and what results could be expected, both in the short and in the medium term.
Abstract submission | January 16/22 |
Abstract acceptance | March 4/22 |
Attendance confirmation | March 25/22 |
Conference | May 3–5/22 |
First Session — Chair: A. Lozano-Durán | ||
Multi-agent reinforcement learning in flow modelling and control | ||
P. Koumoutsakos | Abstract | Video |
Information flow and bottom-up causation in a quasi-geostrophic turbulence | ||
X. S. Liang, L. Wang & W. Li | Abstract | Video |
Machine-aided discovery of significant regions in isotropic turbulence | ||
M. P. Encinar & J. Jiménez | Abstract | Video |
Causality in isotropic turbulence at low Reynolds number | ||
X. Zhang & J. Jiménez | Abstract | Video |
Inter-scale causality in near-wall turbulence | ||
Z. Hao & R. García-Mayoral | Abstract | Video |
Second Session — Chair: G. Boffeta | ||
Causality in turbulent entrainment of a passive scalar in free-shear flows | ||
G. Boga, E. Stalio & A. Cimarelli | Abstract | Video |
Causality in Rayleigh-Bénard and Taylor-Couette turbulence | ||
D. Lohse | Abstract | Video |
Causality in immiscible Rayleigh-Taylor turbulence | ||
S. Brizzolara, M.E. Rosti, A. Mazzino & M. Holzner | Abstract | Video |
Causality-based algorithms for adaptive mesh refinement in turbulent flow simulations | ||
D. Massaro, S. Rezaeiravesh & P. Schlatter | Abstract | Video |
Third Session — Chair: M. Uhlmann | ||
Causality analysis of large-scale structures in urban flows | ||
E. López, R. Vinuesa, S. Le Clainche, A. Lozano-Durán & A. Srivastava | Abstract | Video |
Spectral analysis of the evolution of energy-containing eddies | ||
E. Kannadasan, C. Atkinson & J. Soria | Abstract | Video |
Massive computational study of causal events in turbulent channel flow | ||
K. Osawa & J. Jiménez | Abstract | Video |
Dynamics of turbulent structures in Couette-Poiseuille flow | ||
J.E. Wesfreid, T. Liu, B. Semin & R. Godoy-Diana | Abstract | Video |
Comparison between interventional and observational causal inference in turbulence | ||
Y. Ling & A. Lozano-Durán | Abstract | Video |
Fourth Session — Chair: G. Kawahara | ||
Broadcasting Perturbations over Turbulence | ||
K. Taira, C-A. Yeh & K. Fukami | Abstract | Video |
On-the-fly Reduced-Order Modeling of Turbulent Flow Response to High-Dimensional Forcing with Time-Dependent Bases | ||
E. Ballouz, B. López-Doriga, S.T.M. Dawson & H.J. Bae | Abstract | Video |
Uncovering the link between dimensional analysis and causality | ||
Z. del Rosario, Ll. Jofre & G. Iaccarino | Abstract | Video |
Large-scale dynamics determines the predictability of extreme events in turbulence | ||
A. Vela-Martín & M. Avila | Abstract | Video |
Causality in drop-turbulence interactions: identifying the driver of drop deformation and breakup | ||
A. Vela-Martín & M. Avila | Abstract | Video |
Fifth Session — Chair: P. Koumoutsakos | ||
Butterflies in the atmosphere: Evaluating local divergence on the model attractor | ||
M. Rodwell | Abstract | Video |
Predictability of homogeneous isotropic turbulence | ||
G. Boffetta & S. Musacchio | Abstract | Video |
Inherent high-frequency instabilities developing from smooth noiseless initial conditions | ||
C.J. Sear & S. Cowley | Abstract | Video |
Cause and effect in turbulence - a statistical point of view | ||
M. Oberlack & S. Hoyas | Abstract | Video |
Variability of the flow around an impulsively started plate | ||
W. van de Water, Jesse Reijtenbagh, J. Westerweel & Mark Tummers | Abstract | Video |
Generalised quasilinear approximations of turbulent channel flow. Streamwise nonlinear energy transfer | ||
C. González-Hernández, Q. Yang & Y. Hwang | Abstract | Video |
Sixth Session — Chair: M. Ávila | ||
Invariant solutions and causality in turbulence | ||
G. Kawahara | Abstract | Video |
Ultimate heat transfer in coherent thermal convection | ||
S. Motoki, G. Kawahara & M. Shimizu | Abstract | Video |
New class of solutions in plane Couette flow | ||
M. Nagata | Abstract | Video |
Causality in sedimentary turbulent channel flows | ||
M. Scherer & M. Uhlmann | Abstract | Video |
Investigating the interaction between turbulent flows and suspended particles with the aid of invariant solutions | ||
M. Uhlmann, T. Pestana, M. Krayer & G. Kawahara | Abstract | Video |
Scaling and spatio-temporal constraints of the minimal seed in boundary-layer flows | ||
E. Taschner, M. Beneitez, Y. Duguet & D.S. Henningson | Abstract | Video |
Final Session — Chair: J. Jiménez | ||
Causal inference, causal discovery, and machine learning | ||
J. Runge | Abstract | Video |
Discussions | ||
Panel Discussion | ||
D. Lohse & A. Lozano- Durán | Video | |
General Discussion | ||
G. Giaccarino & P.J. Schmid | Video |