Benchmark
Problems
Benchmark Problem B1-1F
|
category
|
type
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index
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domain
|
object
|
note
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B. interior
|
1. practical
|
B1-1F
|
frequency
|
auditorium
|
scattering
|
-Mesh data (BEM)-
Downloadable files:･ Data-1.dat (700 KB)→download
Maximum length of elements*1: 0.59 m
Number of elements: 6110
･ Data-2.dat (2.7 MB)→download
Maximum length of elements: 0.276 m
Number of elements: 24514
･ Data-3.dat (11.1 MB)→download
Maximum length of elements: 0.137 m
Number of elements: 100640
Contents of each downloadable file:
1. Number of elements and number of nodes
2. Node numbers and three-dimensional coordinate of the node numbers
3. Element numbers, node numbers that construct each element and boundary condition numbers
4. The boundary condition numbers and surface impedances given as boundary conditions*2
5. Information of a sound source
Note:
*1 Boundary elements: Constant quadrilateral elements are used.
*2 Boundary conditions: Interior faces of the ceiling shown in Fig. (b) are set to be alpha (sound absorption coefficient) = 1. Other faces are assumed to be rigid boundaries.
Fig.: (a) Original geometry, (b) geometry
to be analyzed
and (c) example of the mesh dataset with number of elements: 24514.
and (c) example of the mesh dataset with number of elements: 24514.