4 papers
Inertialess instability of elasto-viscoplastic circular Couette flow
James D. Shemilt, Neil J. Balmforth, Duncan R. Hewitt
An exploration is presented of two-dimensional, circular Couette flow of an elasto-viscoplastic fluid described by Saramito's (Bingham) constitutive law. Axisymmetrical base states…
Nonlinear evolution of instability in inertialess elasto-viscoplastic Poiseuille flow
James D. Shemilt, Neil J. Balmforth, Duncan R. Hewitt
A widely used constitutive law for elasto-viscoplastic fluids (Saramito's model) predicts linear instability in inertialess pressure-driven channel flow. The instability arises due…
Start-up and inertialess instability of elasto-viscoplastic channel flow
James D. Shemilt, Neil J. Balmforth, Duncan R. Hewitt
An exploration is presented of the start-up and linear stability of pressure-driven channel flow of an elasto-viscoplastic fluid described by Saramito's constitutive law. Streamwis…
Air-driven dynamics of viscoplastic liquid layers
James D. Shemilt, Neil J. Balmforth, Duncan R. Hewitt
Airway clearance by coughing is a key mechanism for mucus transport, particularly in obstructive lung diseases associated with altered mucus rheology. We investigate the dynamics o…