Upscaling of reactive flows in domains with moving oscillating boundaries

K. Kumar, T.L. Noorden, van, I.S. Pop

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Abstract

We consider the ¿ow and transport of chemically reactive substances (precursors) in a channel over substrates having complex geometry. In particular, these substrates are in the form of trenches forming oscillating boundaries. The precursors react at the boundaries and get deposited. The deposited layers lead to changes in the geometry and are explicitly taken into account. Consequently, the system forms a free boundary problem. Using formal asymptotic techniques, we obtain the upscaled equations for the system where these equations are de¿ned on a domain with ¿at boundaries. This provides a huge gain in computational time. Numerical experiments show the effectiveness of the upscaling process.
Original languageEnglish
Place of PublicationEindhoven
PublisherTechnische Universiteit Eindhoven
Number of pages17
Publication statusPublished - 2012

Publication series

NameCASA-report
Volume1212
ISSN (Print)0926-4507

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