Blood rheology in shear and uniaxial elongation

Alexander Kolbasov, Patrick M. Comiskey, Rakesh Prasad Sahu, Suman Sinha-Ray, Alexander L. Yarin, Basant Singh Sikarwar, Sungu Kim, Talukder Zaki Jubery, Daniel Attinger

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)


Despite being at the same time a very common and precious fluid, the rheological properties of blood have not been thoroughly investigated. In this manuscript, the rheology of swine blood is characterized. The rheology study is performed in shear flow and in uniaxial elongation. Measurements show that blood is a shear-thinning and viscoelastic fluid. The relaxation time and elongational viscosity of blood are measured. The relaxation time is found in agreement with a recent measurement by Brust et al. (2013). It is shown for the first time that the elongational viscosity can be 1000 times higher than the shear viscosity. Implications in biology and forensics are described.

Original languageEnglish
Pages (from-to)901-908
Number of pages8
JournalRheologica Acta
Issue number11-12
Publication statusPublished - 2016 Dec 1


  • Blood rheology
  • Elongational viscosity
  • Shear flow
  • Viscoelasticity

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics


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