Batchfile for the output of pathlines

The data output for path lines can also be called up directly without the graphical user interface via the command line, provided that a suitable batch file *.bna is available in the directory. To do this, navigate to the directory in which the calculation is to be carried out. If you enter nachlauf and confirm with the Enter key, a calculation is started with the module NACHLAUF. The default batch file name is nach.bna. This file is searched for in the directory. However, a different batch file can also be specified with the nachlauf filename call (the extension ".bna" is automatically appended if required). The batch files can be created or modified manually using any editor.

Example of a batch file for the output of pathlines

DHME

---

# Name of configuration[sitra](basename for output files)

name: pathlines_backwards

# Folder for output files [current path])

folder: start_at_nodes.results

# Write results to different file types. List containing any of

# - dtn background file

# - csv CSV file

# - str structure file

# - vtu[:2] VTK file, use vtu:2 to include animation

save: [dtn,str]

# Move coordinate bounds to origin [false]

moveToOrigin: true

# Time unit to use [input]

timeUnit: input

# Compute error indicator [false]

errorIndicator: false

# Pathline computation[optional]

pathlines:

# Integration direction [forward] forward|backward|both

direction: forward

# Maximum number of steps [5000]

nSteps: 5000

# Stepsize in time or length [length] time|length

stepsizeIn: length

# Startpoints for pathlines].

start:

# Placement of points on curves[equal]

# - `equal`: Equally spaced points

# - `adaptive`: Spacing according to flux density

spacing: equal

# Specify startpoints (duplicate entries allowed)

locations:

# Start at node positions. Optionally `n` startpoints on a

# circle of radius `r` around the nodes.

- nodes: [1263,1001,702,985,622,911]

radius: 1

nPoints: 10

The program ignores the characters behind the sign `#'. This space can be used for individual remarks.

Output of the Schlieren plot