Progress of this test case collection for TGV is tracked in the following ticket: Action #2246: Test case - Benchmark: Taylor-Green Vortex

Taylor-Green Vortex

In these examples, we will investigate the creation and evolution of vortices in simple pre-defined cubes with periodic boundaries. For such a simple geometry we even do not need seeder.

The case is based on the well-known Taylor-Green vortex benchmark case, which is subject of the following papers: [1] Brachet, M. E., Meiron, D. I., Nickel, B. G., Morf, R. H., Frisch, U., & Orszag, S. A. (1983). Small-scale structure of the taylor-green vortex. Journal of Fluid Mechanics, 130, 411–452. [2] Brachet, M. E. (1991). Direct simulation of three-dimensional turbulence in the Taylor-Green vortex. Fluid Dynamics Research, 8(1–4), 1–8. [3] DeBonis, J. R. (2013). Solutions of the Taylor-Green vortex problem using high-resolution explicit finite difference methods. 51st AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition 2013, (February 2013).

The objective of the TGV examples are to introduce the following features in Musubi:

• Define functions (TGV) to use them for boundary conditions.
• Calculate the kinetic energy after runtime and compare it to reference data.
• Use of different turbulence models.

Here is the list of test cases to learn these features in Musubi:

• Simple TGV
• TGV with different LES models

In these test cases, in addition to the aforementioned features, you will also learn how to:

• Post-processing nd visualization in Paraview.
• Create a 2D plot using Gleaner tool. Gleaner is a Python tool which extracts data from Musubi ascii output and uses matplotlib in python library to create a plot.