Pressure fluctuations in a turbulent flow of a drag-reducing viscoelastic fluid in a sudden-expansion pipe

Sehyun Shin, Young I. Cho

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

1 Citation (Scopus)

Abstract

The role of a viscoelastic non-Newtonian fluid on static pressure distributions and pressure fluctuations across a sudden-expansion step in a circular pipe was investigated in the present study. The expansion ration of the sudden-expansion step was 1.9, and the range of the Reynolds number based on the inlet diameter was 5,000-25,000. Tap water and aqueous solutions of polyacrylamide (Separan AP-273) were used as the Newtonian fluid and viscoelastic non-Newtonian fluid. Pressure fluctuations with the polyacrylamide solutions was much smaller than those with water, and decreased with increasing concentration of the polyacrylamide solution.

Original languageEnglish
Title of host publicationAmerican Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED
Place of PublicationNew York, NY, United States
PublisherPubl by ASME
Pages43-51
Number of pages9
Volume149
ISBN (Print)0791809579
Publication statusPublished - 1993 Jan 1
Externally publishedYes
EventFluids Engineering Conference - Washington, DC, USA
Duration: 1993 Jun 201993 Jun 24

Other

OtherFluids Engineering Conference
CityWashington, DC, USA
Period93/6/2093/6/24

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ASJC Scopus subject areas

  • Engineering(all)

Cite this

Shin, S., & Cho, Y. I. (1993). Pressure fluctuations in a turbulent flow of a drag-reducing viscoelastic fluid in a sudden-expansion pipe. In American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED (Vol. 149, pp. 43-51). Publ by ASME.