• Medientyp: Sonstige Veröffentlichung; Bericht; E-Book
  • Titel: A fast stratified sampling simulation of coagulation processes
  • Beteiligte: Sabelfeld, Karl [Verfasser:in]; Levykin, Alexander I. [Verfasser:in]; Privalova, Tatiana [Verfasser:in]
  • Erschienen: Weierstrass Institute for Applied Analysis and Stochastics publication server, 2005
  • Sprache: Englisch
  • DOI: https://doi.org/10.20347/WIAS.PREPRINT.1075
  • Schlagwörter: 65C35 ; Smoluchowski coagulation equation -- stratified sampling -- 2D diffusion controlled coagulation ; 65Z05 ; 65C05 ; article
  • Entstehung:
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  • Beschreibung: We develop a new version of the direct simulation Monte Carlo method [3] for coagulation processes governed by homogeneous Smoluchowsky equations. The method is based on a subdivision of the set of particle pairs into classes, and on an efficient algorithm for sampling from a discrete distribution, the so-called Walker's alias method [4]. The efficiency of the new method is drastically increased compared to the conventional methods, especially when the coagulation kernel is strongly varying. The method is applied to solving a problem of islands formation on a surface due to a diffusion controlled coagulation.
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