Backscattering from randomly placed Dirichlet particles
Description
Summary:
A simulated data set of backscattered waves, governed by the 2D wave equation, from randomly placed Dirichlet particles. The particles are circular with 0.2 < radius < 2.0 and 1% < volume fraction < 20%. The incident wave is of the form ei k (x - xR - t) where the particles are placed in the halfspace x>0 and the backscattering is emitted and received at (xR, 0) with xR = -10.0. The data named bunny and bunnytest is for incident waves with 0 < k < 1 (where the term e- i k t factors out). The data named train and test is for incident waves of the form e0.1(x - xR - t)^2, with 9.5 < t < 98.
Format:
An example of how to use the data is given in [4]. To load the data requires the packages [1] and [2] in the language Julia v0.5> [3]. When using load(filename) the data will automatically be loaded as an array of type FrequencySimulation or of type TimeSimulation.
[1] https://github.com/jondea/MultipleScattering.jl
[2] https://github.com/JuliaIO/JLD.jl
[3] https://julialang.org/
[4] https://github.com/gowerrobert/MultipleScatteringLearnMoments/tree/master/examples
Notes
Files
Files
(12.4 GB)
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md5:d251256c91966d7a61d3dd747790b6db
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9.2 GB | Download |
md5:68a357e6a43deb26bdcbf5f1dc3b6028
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3.2 GB | Download |
md5:0c69e051f55255d0bcdc71d1e387bb0e
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304.7 kB | Download |
md5:e23fcbd2c853e08535541bab6a6cd5ac
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775.6 kB | Download |
Additional details
References
- P. A. Martin (2011), "Multiple scattering by random configurations of circular cylinders: Reflection, transmission, and effective inter- face conditions", JASA
Subjects
- Multiple Scattering
- https://en.wikipedia.org/wiki/Multiple_scattering_theory