Ian Frigaard
Professor
B.Sc. (Univ. of Wales), M.Sc. (Oxon), D.Phil. (Oxon), C.Math.
ph: (604) 822-1316
fx: (604) 822-2403
email: frigaard@mech.ubc.ca
website: www.sites.mech.ubc.ca/~frigaard
Research Interests
My research falls into two main categories:
- Non-Newtonian fluid mechanics: My particular interest here is in the flow of visco-plastic (yield stress) fluids. My group conducts research that combines mathematical, experimental and computational approaches. The research is roughly half focused towards industrial application and half on fundamental topics.
- Industrial mathematical modeling: This work is industry-driven. Broadly, I have been interested in processes combing thermal and fluid dynamic effects. Examples: oilfield cementing, spray deposition/forming, injection molding, continuous casting, Czrochalski crystal growth, image processing, wellbore hydraulics, slurry transport, well control.
Current Research Work
- Non-Newtonian fluid mechanics: Subjects recently studied with yield stress fluids include: Shear instabilities, Rayleigh-Bénard flows, Bubble propagation, particle sedimentation, visco-plastic lubrication, miscible displacement flows, dispersion, Taylor-Couette instabilities, regularization methods. Research in these areas is ongoing.
- Industrial mathematical modeling: Subjects recently studied include: InSb crystal growth, injection molding, reactive displacement flows, waxy crude oil pipeline restarts, cementing displacement flows.
Selected Publications
- S.M. Taghavi, T. Seon, D.M. Martinez and I.A. Frigaard, “Buoyancy-dominated displacement flows in near-horizontal channels: the viscous limit.” J. Fluid Mech., available online
- Putz, I.A. Frigaard and D.M. Martinez, “The lubrication paradox and the use of regularisation methods for lubrication flows.” J. non-Newt. Fluid Mech., Available online July 2009.
- Nouar and I. Frigaard, “Stability of plane Couette–Poiseuille flow of shear-thinning fluid.” Phys. Fluids 21 064104 (2009)
- M. Moyers-Gonzalez and I.A. Frigaard, “Kinematic instabilities in two-layer eccentric annular flows, part 2: shear thinning and yield stress effects, J. of Engng. Math., 65(1), pp. 25-52, (2009)
- Güzel, I. Frigaard, D.M. Martinez “Predicting laminar–turbulent transition in Poiseuille pipe flow for non-Newtonian fluids”, Chem. Eng. Sci. 64(2), pp. 254-264, (2009).
- M. Carrasco-Teja and I.A. Frigaard, “Displacement flows in horizontal, narrow, eccentric annuli with a moving inner cylinder.” Phys. Fluids, 21 073102 (2009).
- B. Guzel, T. Burghelea, I. A. Frigaard and D. M. Martinez, “Observation of laminar-turbulent transition of a yield stress fluid in Hagen-Poiseuille flow”, J. Fluid Mech., accepted 2009.
- Wachs, G. Vinay and I.A. Frigaard, “A 1.5D numerical model for the start up of weakly compressible flow of a viscoplastic and thixotropic fluid in pipelines”, J. non-Newtonian Fluid Mech., 159(1-3), pp. 81-94, (2009).
- Metivier, I.A. Frigaard and C. Nouar, “Non-linear stability of the Bingham Rayleigh-Benard flow”, J. non-Newtonian Fluid Mech., 158(1-3), pp. 127-131, (2009).
- M. Carrasco-Teja, I. Frigaard, B. Seymour and S. Storey, “Visco-plastic fluid displacements in horizontal narrow eccentric annuli” J. Fluid Mech. 605, pp. 293-327 (2008).
- A. Putz, T. Burghelea, D.M. Martinez and I.A. Frigaard, “Settling of an isolated spherical particle in a yield stress shear thinning fluid”, Physics of Fluids, 20, 033102 (2008).
