34 citations · 35 across the 4 of their papers we have counts for
9 papers
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…
A unification of least-squares and Green-Gauss gradients under a common projection-based gradient reconstruction framework
Alexandros Syrakos, Oliver Oxtoby, Eugene de Villiers +3
We propose a family of gradient reconstruction schemes based on the solution of over-determined systems by orthogonal or oblique projections. In the case of orthogonal projections,…
A family of first-order accurate gradient schemes for finite volume methods
Oliver Oxtoby, Alexandros Syrakos, Eugene de Villiers +3
A new discretisation scheme for the gradient operator, suitable for use in second-order accurate Finite Volume Methods (FVMs), is proposed. The derivation of this scheme, which we…
A finite volume method for the simulation of elastoviscoplastic flows and its application to the lid-driven cavity case
Alexandros Syrakos, Yannis Dimakopoulos, John Tsamopoulos
We propose a Finite Volume Method for the simulation of elastoviscoplastic flows, modelled after the extension to the Herschel-Bulkley model by Saramito [J. Non-Newton. Fluid Mech.…
Theoretical study of the flow in a fluid damper containing high viscosity silicone oil: effects of shear-thinning and viscoelasticity
Alexandros Syrakos, Yannis Dimakopoulos, John Tsamopoulos
The flow inside a fluid damper where a piston reciprocates sinusoidally inside an outer casing containing high-viscosity silicone oil is simulated using a Finite Volume method, at…
Thixotropic flow past a cylinder
Alexandros Syrakos, Georgios C. Georgiou, Andreas N. Alexandrou
We study the flow of a thixotropic fluid around a cylinder. The rheology of the fluid is described by means of a structural viscoplastic model based on the Bingham constitutive equ…