Technical Report
 

Model of heterogeneous microscale in SOFI for Monte Carlo simulations

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https://ir.library.oregonstate.edu/concern/technical_reports/gx41mj344

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  • We present a methodology for creating a simulated foam microstructure for use in forward simulations of wave equations to quantitatively analyze the expected scattering phenomenon primarily responsible for the attenuation of interrogating signals in Sprayed-On Foam Insulation (SOFI). Our approach builds off of the popular use of Voronoi Tessalations for crystal growth modeling by using the Laguerre variant (Apollonius Graph) applied to close-packed spheres. A fi lled-in random raindrop algorithm is used to generate the packing confi guration. Lastly, variation of diameter mean values is used to model knitlines, i.e., the interfaces between sprayed-on layers.
  • KEYWORDS: Apollonius Graph, random raindrop algorithm, heterogeneous microscale
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