Residual drilling mud during conditioning of uneven boreholes in primary cementing. Part 1: Rheology and geometry effects in non-inertial flows A Roustaei, A Gosselin, IA Frigaard Journal of Non-Newtonian fluid mechanics 220, 87-98, 2015 | 71 | 2015 |

The occurrence of fouling layers in the flow of a yield stress fluid along a wavy-walled channel A Roustaei, IA Frigaard Journal of Non-Newtonian fluid mechanics 198, 109-124, 2013 | 65 | 2013 |

Residual drilling mud during conditioning of uneven boreholes in primary cementing. Part 2: Steady laminar inertial flows A Roustaei, IA Frigaard Journal of Non-Newtonian fluid mechanics 226, 1-15, 2015 | 54 | 2015 |

Non-Darcy effects in fracture flows of a yield stress fluid A Roustaei, T Chevalier, L Talon, IA Frigaard Journal of Fluid Mechanics 805, 222-261, 2016 | 44 | 2016 |

Buoyancy effects on micro-annulus formation: Density stable displacement of Newtonian–Bingham fluids M Zare, A Roustaei, IA Frigaard Journal of Non-Newtonian Fluid Mechanics 247, 22-40, 2017 | 36 | 2017 |

Macro-size drop encapsulation A Maleki, S Hormozi, A Roustaei, IA Frigaard Journal of Fluid Mechanics 769, 482-521, 2015 | 22 | 2015 |

Strategies for mud-removal from washouts during cementing of vertical surface casing A Etrati, A Roustaei, IA Frigaard Journal of Petroleum Science and Engineering 195, 107454, 2020 | 21 | 2020 |

Pressure‐driven displacement flows of yield stress fluids: Viscosity ratio effects A Eslami, R Mollaabbasi, A Roustaei, SM Taghavi The Canadian Journal of Chemical Engineering 97 (11), 2804-2817, 2019 | 19 | 2019 |

Practical guidelines for fast, efficient and robust simulations of yield-stress flows without regularisation: A study of accelerated proximal gradient and augmented Lagrangian … T Treskatis, A Roustaei, I Frigaard, A Wachs Journal of Non-Newtonian Fluid Mechanics, 2018 | 19 | 2018 |

Yield stress fluid flows in uneven geometries: applications to the oil & gas industry A Roustaei University of British Columbia, 2016 | 13 | 2016 |

Flow onset for a single bubble in a yield-stress fluid A Pourzahedi, E Chaparian, A Roustaei, IA Frigaard Journal of Fluid Mechanics 933, A21, 2022 | 11 | 2022 |

Buoyancy effects on micro-annulus formation: Newtonian-Bingham fluid displacements in vertical channels M Zare, A Roustaei, IA Frigaard J. Non-Newtonian Fluid Mech. 247, 22-40, 2017 | 9 | 2017 |

Invasion of fluids into a gelled fluid column: Yield stress effects M Zare, A Roustaei, K Alba, IA Frigaard Journal of Non-Newtonian Fluid Mechanics 238, 212-223, 2016 | 4 | 2016 |

Fouling of viscoplastic fluids in uneven channels A Roustaei, IA Frigaard | | |