Waveller-FBEM-5.4-examples.tar.gz

Waveller-FBEM-5.4-examples.tar.gz

Waveller FBEM ; Head scattering example
=======================================

This example contains only the watertight mesh of a human
head in object file format (OFF). You can create the
simulation files using the createSimulation.py script
in the Waveller FBEM tools directory.

To study the scattering from auricle and head, a point
source is placed close to the right ear canal opening.
The mesh is in millimeter units and the location for the
point source is (69, -4, 5) mm.

To create simulation files, createSimulation.py is
run as follows:

python tools/createSimulation.py -m head.off -c 0.001 \
-s 69,-4,5 -f 12000,200,13000 \
-o head_scattering_simulation

where -m specifies the mesh file, -c specifies scaling
factor (from millimeters in mesh file to meters), -s
specifies point source location, -f specifies the
frequency range and -o the location of output files.

This example requires some 2.2 gigabytes of memory and
3 minutes of wall clock time per frequency to run.
You can run each frequency with

waveller Solution12000.ini
waveller-field Solution12000.ini
waveller-visualize Solution12000.ini

A visualization example for Paraview is in the
visualization directory. Use ”File->Open State” to
open the .pvsm file.

Waveller FBEM ; Point Source example
====================================

The simulation geometry is a sphere with the radius of 0.1 m. The center of the
sphere is at the origo. The point source is located very far away from sphere
at the negative z-axis (z=-100000*wave length). The frequency is 2000 Hz. The
result is a the total acoustic field at x = 0 plane around the sphere.

You can rerun the simulation with the following commands:

waveller Solution_1
waveller-field Solution_1

and finally visualize the results with:

waveller-visualize Solution_1.ini

An example visualization file for Paraview is located in visualization_example
directory.

Waveller FBEM : Vibrating sphere example
========================================

The simulation geometry is a sphere with the radius of 0.1 m. The center of the
sphere is at the origo. In this example the surface of the sphere radiates with
frequency of 500 Hz and the normal surface velocity is 0.1 m/s. The total field
is computed at different locations from the surface of the spehere. The
locations are from 1 m to 16 m with 1 m steps to the positive x-axis.

You can rerun the simulation with the following commands:

waveller Solution_1
waveller-field Solution_1

and finally visualize the results with:

waveller-visualize Solution_1.ini

An example visualization file for Paraview is located in the visualization_
example directory.

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