Lagrangian and Eulerian dataset of the wake downstream of a smooth cylinder at a Reynolds number equal to 3900

The dataset contains Eulerian velocity and pressure fields, and Lagrangian particle trajectories of the wake flow downstream of a smooth cylinder at a Reynolds number equal to 3900. An open source Direct Numerical Simulation (DNS) flow solver named Incompact3d was used to calculate the Eulerian field around the cylinder. The synthetic Lagrangian tracer particles were transported using a fourth-order Runge-Kutta scheme in time and trilinear interpolations in space. Trajectories of roughly 200,0 00 particles for two 3D sub-domains are available to the public. This dataset can be used as a test case for tracking algorithm assessment, exploring the Lagrangian physics, statistic analyses, machine learning, and data assimilation interests. (C) 2021 The Authors. Published by Elsevier Inc.

Automated summary

The dataset includes Eulerian velocity and pressure fields, as well as Lagrangian particle trajectories, of the wake flow downstream of a smooth cylinder at a Reynolds number of 3900. These data can be used for tracking algorithm assessment, exploring Lagrangian physics, statistical analysis, machine learning, and data assimilation research.