Development of confined viscoplastic flows with heterogeneous wall slip

Pandelitsa Panaseti, Maria Philippou, Zacharias Kountouriotis, Georgios Georgiou

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The steady, pressure-driven flow of a Herschel-Bulkley fluid in a channel is considered assuming that slip occurs on one wall only due to slip heterogeneities. Hence, the velocity profile is allowed to be asymmetric. The fully-developed solutions are derived and the different flow regimes are identified. The development of the flow is investigated numerically using the Papanastasiou regularization for the constitutive equation, a power-law slip equation, and finite element simulations. The combined effects of slip and the Bingham number are discussed.

Original languageEnglish
Title of host publicationECCOMAS Congress 2016 - Proceedings of the 7th European Congress on Computational Methods in Applied Sciences and Engineering
PublisherNational Technical University of Athens
Pages1205-1214
Number of pages10
Volume1
ISBN (Electronic)9786188284401
DOIs
Publication statusPublished - 2016
Event7th European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS Congress 2016 - Crete, Greece
Duration: 5 Jun 201610 Jun 2016

Other

Other7th European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS Congress 2016
CountryGreece
CityCrete
Period5/06/1610/06/16

Keywords

  • Bingham plastic
  • Finite elements
  • Flow development
  • Navier slip
  • Plane poiseuille flow
  • Wall slip

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    Panaseti, P., Philippou, M., Kountouriotis, Z., & Georgiou, G. (2016). Development of confined viscoplastic flows with heterogeneous wall slip. In ECCOMAS Congress 2016 - Proceedings of the 7th European Congress on Computational Methods in Applied Sciences and Engineering (Vol. 1, pp. 1205-1214). National Technical University of Athens. https://doi.org/10.7712/100016.1880.4629