26 citations · 121 across the 13 of their papers we have counts for
10 papers · 1 filter
Bubble-Induced Entrainment at Viscoplastic-Newtonian Interfaces
Marjan Zare, Ian Frigaard, Gregory Lawrence
The passage of single air bubbles through the horizontal interface between miscible viscoplastic and Newtonian fluids, considering various combinations of densities and viscosities…
Squeeze cementing of micro-annuli: a visco-plastic invasion flow
Mahdi Izadi, Emad Chaparian, Elizabeth Trudel +1
Squeeze cementing is a process used to repair leaking oil and gas wells, in which a cement slurry is driven under pressure to fill an uneven leakage channel. This results in a Hele…
Statistics and spectral analysis of turbulent duct flows with flexible and rigid polymer solutions
Rodrigo S. Mitishita, Gwynn J. Elfring, Ian A. Frigaard
We present an experimental investigation of turbulent drag reduction with flexible and rigid polymer solutions. The flexible polymer is partially hydrolyzed polyacrylamide (HPAM) a…
Fully turbulent flows of viscoplastic fluids in a rectangular duct
Rodrigo S. Mitishita, Jordan A. MacKenzie, Gwynn J. Elfring +1
Turbulent flows of viscoplastic fluids at high Reynolds numbers have been investigated recently with direct numerical simulations (DNS) but experimental results have been limited.…
Turbulent drag reduction of viscoelastic wormlike micellar gels
Rodrigo S. Mitishita, Gwynn J. Elfring, Ian A. Frigaard
Long-chained, viscoelastic surfactant solutions (VES) have been widely employed in the oil and gas industry, particularly in hydraulic fracturing and gravel-packing operations, whe…
Flow onset for a single bubble in yield-stress fluids
Ali Pourzahedi, Emad Chaparian, Ali Roustaei +1
We use computational methods to determine the minimal yield-stress required in order to hold static a buoyant bubble in a yield-stress liquid. The static limit is governed by the b…