Fluid Mechanics of Mixing in a Single-Screw Extruder

Ravindran Chella, Jullo M. Ottino

Research output: Contribution to journalArticlepeer-review

50 Scopus citations


An analysis is presented of mixing in cavity flows and in the single-screw extruder, valid for realistic degrees of mixing (stretching). The limitations of conventional numerical tracking schemes and the general characteristics of flows with weak reorientation are discussed. The analysis gives insight into the physics of the process and suggests ways for improved operation by highlighting the role of operating conditions, the mode of feed introduction, and the role of mixing sections.

Original languageEnglish (US)
Pages (from-to)170-180
Number of pages11
JournalIndustrial and Engineering Chemistry Fundamentals
Issue number2
StatePublished - Jan 1 1985

ASJC Scopus subject areas

  • Engineering(all)

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