Browsing by Subject "Incompressible flow"
Now showing items 112 of 12

Article
Combined effects of compressibility and slip in flows of a HerschelBulkley fluid
(2013)In this work, the combined effects of compressibility and slip in Poiseuille flows of HerschelBulkley fluids are investigated. The density is assumed to obey a linear equation of state, and wall slip is assumed to follow ...

Article
Comparison of spectral and finite element methods applied to the study of the coreannular flow in an undulating tube
(2002)A Galerkin/finite element and a pseudospectral method, in conjunction with the primitive (velocitypressure) and streamfunctionvorticity formulations, are tested for solving the twophase flow in a tube, which has a ...

Article
Efficient treatment of complex geometries for large eddy simulations of turbulent flows
(2004)Incompressible turbulent flow over a backward facing step at Reh=5100 is investigated by large eddy simulations (LES). The ratio of the oncoming boundary layer thickness δ to the step height h was set to 1.2. Additionally ...

Article
Immersed boundary method for the MHD flows of liquid metals
(2009)Wallbounded magnetohydrodynamic (MHD hereafter) flows are of great theoretical and practical interest. Even for laminar cases, MHD simulations are associated with very high computational cost due to the resolution ...

Article
Lagrangian particle dispersion in turbulent flow over a wall mounted obstacle
(2009)Largeeddy simulations (LES) of particleladen turbulent flows are presented in order to investigate the effects of particle response time on the dispersion patterns of a space developing flow with an obstruction, where ...

Conference Object
Large eddy simulation of sediment transport for the pulsating flow past a cylinder over a horizontal bed
(International Society of Offshore and Polar Engineers, 2015)In the present work, the suspended, pulsating incompressible flow past a submerged cylinder was examined by means of Large Eddy Simulations (LES). A layer of sandy inertial particles was allowed to move between the cylinder ...

Article
LES of the flow past a rectangular cylinder using the immersed boundary concept
(2003)Incompressible turbulent flow past a long square cylinder is investigated using large eddy simulations LES). Results are presented and compared with available experimental databases for a Reynolds number Red = 22 000. The ...

Article
Mechanism for extrusion instabilities in polymer melts
(1999)A mechanism for explaining some of the instabilities observed during the extrusion of polymer melts is further explored. This is based on the combination of nonmonotonic slip and elasticity, which permits the existence ...

Article
New analytical solutions for weakly compressible Newtonian Poiseuille flows with pressuredependent viscosity
(2016)Steadystate, isothermal, Poiseuille flows in straight channels and circular tubes of weakly compressible Newtonian fluids are considered. The major assumption is that both the mass density and the shear viscosity of the ...

Article
A note on the unbounded creeping flow past a sphere for Newtonian fluids with pressuredependent viscosity
(2015)We investigate theoretically isothermal, incompressible, creeping Newtonian flows past a sphere, under the assumption that the shear viscosity is pressuredependent, varying either linearly or exponentially with pressure. ...

Article
On the combined effects of slip, compressibility, and inertia on the Newtonian extrudateswell flow problem
(2013)We solve both the planar and axisymmetric extrudateswell flows of a compressible Newtonian liquid with Navier slip at the wall, using the finiteelement method in space and a fullyimplicit finitedifference scheme in ...

Article
Weakly compressible Poiseuille flows of a HerschelBulkley fluid
(2009)In this work, we derive approximate semianalytical solutions of the steady, creeping, weakly compressible plane and axisymmetric Poiseuille flows of a HerschelBulkley fluid. Since the flow is weakly compressible, the ...