Main release v1.0

Main release to project partners

This release contains the CMM-framework ready to be used. It was tested thoroughly in-house.

Features

Math

• Full framework to solve the 2D Euler equations with the characteristic mapping method
• 3rd order accuracy in space with cubic Hermite interpolation
• variable 1st to 4th order accuracy in time with different time-stepping schemes and Lagrange interpolation of the velocity
• Particle implementation to implement fluid and inertial point particles
• Ability to transport passive scalars by the fluid velocity
• Ability to compute zooms in transported quantities (vorticity and passive scalars)
• Forward flow map computation

Structure

• Variable settings ready for automation
• Clear output structure, which can be largely adapted for specific needs
• Clean structure of the existing code
• Logging with different levels of intensity

Initial conditions

Vorticity:

• 4 nodes flow largely used for validations
• quadropole with four gaussian vortices
• one vortex flow
• two vortices merger
• three vortices problem
• single shear layer in simplified and tanh formulation
• artificial turbulence with checkerboard of Gaussian vortices with random displacement in two different configurations
• shielded vortex
• two cosine as stationary case
• vortex sheets

Scalar:

• Rectangle
• Normal distribution / Gaussian blob
• Circular ring

Particles:

• Uniform distribution in rectangle
• Normal distribution in Gaussian blob
• Circular ring
• Uniform grid with equal amount of points in x- and y-direction