3 papers
physics.flu-dyn2024
Annular Newtonian Poiseuille flow with pressure-dependent wall slip
Kostas D. Housiadas, Evgenios Gryparis, Georgios C. Georgiou
We investigate the effect of pressure-dependent wall slip on the steady Newtonian annular Poiseuille flow employing Navier's slip law with a slip parameter that varies exponentiall…
physics.flu-dyn2024
A revisit of the development of viscoplastic flow in pipes and channels
Alexandros Syrakos, Evgenios Gryparis, Georgios C. Georgiou
This study revisits the development of viscoplastic flow in pipes and channels, focusing on the flow of a Bingham plastic. Using finite element simulations and the Papanastasiou re…
physics.flu-dyn2024
Torsional parallel plate flow of Herschel-Bulkley fluids with wall slip
Evgenios Gryparis, Georgios C. Georgiou
The effect of wall slip on the apparent flow curves of viscoplastic materials obtained using torsional parallel plate rheometers is analysed by considering Herschel-Bulkley fluids…