Estimation of slip of viscoplastic fluid in laminar hagen poiseuille flow using optical coherence tomography

Sanna Haavisto, Maria J. Cardona, Juha Salmela, Emilio Tozzi, Michael J. McCarthy, Robert Powell, D. Mark Martinez, Markku Kataja, Antti Koponen

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsScientific

Abstract

Particle and fibre suspensions are prone to wall depletion which leads to effects like apparent slip, often characterized by a slip velocity, which often dictate the suspension flow behaviour. Heretofore this has complicated the interpretation of rheological measurements both in microscopic and macroscopic scales. A new experimental method based on velocity profile measurements in fully developed pipe (18.5 mm diameter) flow is presented for direct measurement of the rheological behaviour of any opaque fluid . In our work Magnetic Resonance Imaging (MRI) or the Ultrasound Doppler Velocimetry (UDV) technique is utilized for measuring the velocity profile in the interior parts of the pipe and Optical Coherence Tomography (OCT) is applied for high-resolution measurements of the boundary layer flow and structure near the pipe wall. While MRI and UDV are well established techniques OCT has only recently been utilized for rheological characterizations. As MRI and UDV, OCT is a non-invasive technique that allows real time imaging of the internal structure and velocity of opaque media with very high spatial and temporal resolution.
Original languageEnglish
Title of host publication4th Joint US-European Fluids Engineering Summer Meeting
PublisherAmerican Society of Mechanical Engineers ASME
Chapter1-30
Number of pages1
Publication statusPublished - 2014
Event4th Joint US-European Fluids Engineering Division Summer Meeting and 12th International Conference on Nanochannels, Microchannels, and Minichannels, ASME 2014 - Chicago, United States
Duration: 3 Aug 20147 Aug 2014
https://www.asmeconferences.org/FEDSM2014/ (Official Proceedings)

Conference

Conference4th Joint US-European Fluids Engineering Division Summer Meeting and 12th International Conference on Nanochannels, Microchannels, and Minichannels, ASME 2014
Abbreviated titleASME 2014
CountryUnited States
CityChicago
Period3/08/147/08/14
Internet address

    Fingerprint

Keywords

  • foam
  • fibre
  • wood fibre
  • rheology
  • viscosity
  • fiber foam
  • fiber-laden foam

Cite this

Haavisto, S., Cardona, M. J., Salmela, J., Tozzi, E., McCarthy, M. J., Powell, R., Martinez, D. M., Kataja, M., & Koponen, A. (2014). Estimation of slip of viscoplastic fluid in laminar hagen poiseuille flow using optical coherence tomography. In 4th Joint US-European Fluids Engineering Summer Meeting [FEDSM2014-21983] American Society of Mechanical Engineers ASME.