Benchmark
Problems
Benchmark Problem B1-2F
-Properties-
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category
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type
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index
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domain
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object
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note
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B. interior
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1. practical
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B1-2F
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frequency
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auditorium with seats
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scattering
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Geometry: Auditorium (about 3,000 m3) with a point source(details and coordinates).
Boundary condition:
All faces are rigid boundaries.; A point source (S) is located at (-7.558, 0.0, 1.50), assuming its stationary vibration with volume acceleration amplitude 1.0 m3/s2.
Fig. B1-2F-1:
Geometry of problem B1-2F (unit: m).
-Task A-
Distribution:
Sound pressure amplitude [Pa] at 201 points (R1), on the line from S (-7.558, 0, 1.5) to (12.65, 0, 1.5), located at 0.1 m intervals (coordinates of 201 points). At the octave-band mid-frequencies (f = 31.5, 63, 125, 250, 500, 1k, 2k, 4k Hz).
Dataform:
d-b1-2fa.xls
Contribution:
-Task B-
Frequency response:
Sound pressure amplitude [Pa] at M1(-2.995, 1.782, 1.3) and M2 (6.674, 0, 1.3). At the frequencies with 1 Hz intervals from 20 Hz to 4 kHz; or with 50 Hz intervals from 50 Hz to 4 kHz.
Dataform:
d-b1-2fb.xls
Contribution:
-Task C-
Distribution:
1/3 octave band sound pressure level [dB] at 2601 points (R2), on the plane z = 1.3, -5 ≤ x ≤ 5, -5 ≤ y ≤ 5 (coordinates of 2601 points). At the 1/3 octave-band mid-frequencies (f = 31.5, 40, 50, 63, 80, 100, 125, 160, 200, 250, 315, 400, 500, 630, 800, 1k, 1.25k, 1.6k, 2k, 2.5k, 3.15k, 4k Hz).
Dataform:
d-b1-2fc.xls
Contribution: