Browsing by Subject "Bins"
Now showing items 19 of 9

Article
Cessation of viscoplastic Poiseuille flow in a square duct with wall slip
(2015)We solve numerically the cessation of the pressuredriven Poiseuille flow of a Bingham plastic under the assumption that slip occurs along the wall following a generalized Navierslip law involving a nonzero slip yield ...

Article
Determining true material constants of semisolid slurries from rotational rheometer data
(2016)In this work we revisit the issue of obtaining true material constants for semisolid slurries. Therefore, we consider the circular Couette flow of HerschelBulkley fluids. We first show how true constants can be obtained ...

Article
Determining true material constants of semisolid slurries from rotational rheometer data
(2016)In this work we revisit the issue of obtaining true material constants for semisolid slurries. Therefore, we consider the circular Couette flow of HerschelBulkley fluids. We first show how true constants can be obtained ...

Conference Object
Development of confined viscoplastic flows with heterogeneous wall slip
(National Technical University of Athens, 2016)The steady, pressuredriven flow of a HerschelBulkley fluid in a channel is considered assuming that slip occurs on one wall only due to slip heterogeneities. Hence, the velocity profile is allowed to be asymmetric. The ...

Conference Object
Nonanticipative transmission for sources and channels with memory
(Institute of Electrical and Electronics Engineers Inc., 2015)In this paper we analyze nonanticipative (delayless) transmission of source symbols with memory over channels with memory (with and without feedback). We employ duality of source, channel pairs with respect to distortion ...

Article
On the transition to turbulence of a viscoplastic fluid past a confined cylinder: A numerical study
(2015)Threedimensional direct numerical simulations of a Bingham fluid flowing past a confined circular cylinder have been used in order to investigate viscoplastic effects in the waketransition regime. The case of a cylinder ...

Article
Viscoplastic flow development in a channel with slip along one wall
(2017)The flow development of a Herschel–Bulkley fluid in a horizontal channel is considered assuming that slip occurs only on the upper wall due to slip heterogeneities. Hence, the velocity profile is allowed to be asymmetric ...

Article
Viscoplastic flow development in tubes and channels with wall slip
(2016)The development of Bingham plastic flow in tubes and channels is investigated numerically using the Papanastasiou regularization and finite element simulations. It is assumed that slip occurs along the wall following ...

Article
Viscoplastic flow in an extrusion damper
(2016)Numerical simulations of the flow in an extrusion damper are performed using a finite volume method. The damper is assumed to consist of a shaft, with or without a spherical bulge, oscillating axially in a containing ...