Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Mitsoulis, Evan C."'
Publikováno v:
Computers and Fluids
Comput.Fluids
Comput.Fluids
Finite-element simulations have been undertaken for the benchmark problem of extrudate swell present in extrusion. Both cases of planar and axisymmetric domains were considered under laminar, isothermal, steady-state conditions for Newtonian fluids.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d006e3b654ef83a56b87cda36038abe6
https://doi.org/10.1016/j.compfluid.2011.12.019
https://doi.org/10.1016/j.compfluid.2011.12.019
Publikováno v:
Journal of Non-Newtonian Fluid Mechanics
J.Non-Newton.Fluid Mech.
J.Non-Newton.Fluid Mech.
The augmented Lagrangian/Uzawa method has been used to study benchmark one-dimensional cessation flow problems of a Bingham fluid, such as the plane Couette flow, and the plane, round, and annular Poiseuille flows. The calculated stopping times agree
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::68cbecef804275553d2f1f18e986edae
https://doi.org/10.1016/j.jnnfm.2010.02.002
https://doi.org/10.1016/j.jnnfm.2010.02.002
Publikováno v:
Rheologica Acta
Rheol.Acta
Rheol.Acta
The axisymmetric and plane extrusion flows of a liquid foam are simulated assuming that the foam is a homogeneous compressible Newtonian fluid that slips along the walls. Compressibility effects are investigated using both a linear and an exponential
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::013052a29b94dd168d254f8b1cbbfc22
https://doi.org/10.1007/s00397-007-0207-6
https://doi.org/10.1007/s00397-007-0207-6
Autor:
Chatzimina, Maria Evangelia, Xenophontos, Christos A., Georgiou, Georgios C., Argyropaidas, Ioannis, Mitsoulis, Evan C.
Publikováno v:
Journal of Non-Newtonian Fluid Mechanics
J.Non-Newton.Fluid Mech.
J.Non-Newton.Fluid Mech.
We numerically solve the cessation of the annular Poiseuille flow of Bingham plastics for various values of the diameter ratio, using the regularized constitutive equation proposed by Papanastasiou and employing finite elements in space and a fully i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::53e1a88230fa9b86cee27d1cd2b6f5ce
https://doi.org/10.1016/j.jnnfm.2006.07.002
https://doi.org/10.1016/j.jnnfm.2006.07.002
Publikováno v:
Rheologica Acta
Rheol.Acta
Rheol.Acta
The axisymmetric extrudate swell flow of a compressible Herschel–Bulkley fluid with wall slip is solved numerically. The Papanastasiou-regularized version of the constitutive equation is employed, together with a linear equation of state relating t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f671955acc3ec9fd63940b0d53f975e9
http://gnosis.library.ucy.ac.cy/handle/7/57174
http://gnosis.library.ucy.ac.cy/handle/7/57174
Publikováno v:
Computers and Fluids
Comput.Fluids
Comput.Fluids
We solve both the planar and axisymmetric extrudate-swell flows of a compressible Newtonian liquid with Navier slip at the wall, using the finite-element method in space and a fully-implicit finite-difference scheme in time. Our aim is to investigate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::648926bdeeeba7cb2ac3ca8af752bfba
http://gnosis.library.ucy.ac.cy/handle/7/57175
http://gnosis.library.ucy.ac.cy/handle/7/57175
Publikováno v:
Rheologica Acta
Rheol.Acta
Rheol.Acta
Numerical simulations are undertaken for unsteady flows of an ideal Bingham fluid in a circular Couette viscometer. The main difficulties in such simulations are caused by the non-differentiability of the constitutive equation and the need to determi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5b21efd1dfbc61df14eafe83993a16d7
http://gnosis.library.ucy.ac.cy/handle/7/57314
http://gnosis.library.ucy.ac.cy/handle/7/57314
Autor:
Chatzimina, Maria Evangelia, Georgiou, Georgios C., Argyropaidas, Ioannis, Mitsoulis, Evan C., Huilgol, R. R.
Publikováno v:
Journal of Non-Newtonian Fluid Mechanics
J.Non-Newton.Fluid Mech.
J.Non-Newton.Fluid Mech.
We solve the one-dimensional cessation Couette and Poiseuille flows of a Bingham plastic using the regularized constitutive equation proposed by Papanastasiou and employing finite elements in space and a fully implicit scheme in time. The numerical c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a71e431a4569198c4384117e91d6acca
http://gnosis.library.ucy.ac.cy/handle/7/56603
http://gnosis.library.ucy.ac.cy/handle/7/56603