Improved convergence based on linear and non-linear transformations at low and high Weissenberg asymptotic analysis
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Non-newtonian Fluid Mechanics"
DOI: 10.1016/j.jnnfm.2017.05.005
Abstract: Abstract We investigate the accuracy and efficiency of linear and non-linear transformations on the truncated series solutions obtained by asymptotic methods for simple shear and uniaxial elongational viscoelastic flows. The Upper Convected Maxwell, Oldroyd-B, exponential… read more here.
Keywords: weissenberg number; analysis; linear non; non linear ... See more keywords
A new finite element formulation for viscoelastic flows: Circumventing simultaneously the LBB condition and the high-Weissenberg number problem
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Non-Newtonian Fluid Mechanics"
DOI: 10.1016/j.jnnfm.2019.04.003
Abstract: Abstract In this paper, we propose a new, fully consistent and highly stable finite element formulation for the simulation of viscoelastic flows. In our method, we have implemented equal order interpolants for all variables and… read more here.
Keywords: weissenberg number; element formulation; finite element; element ... See more keywords
On the Weissenberg effect of turbulence
Sign Up to like & getrecommendations! Published in 2019 at "Theoretical and Applied Mechanics Letters"
DOI: 10.1016/j.taml.2019.03.004
Abstract: Abstract Within the framework of the Navier–Stokes equations, the Weissenberg effect of turbulence is investigated. We begin with our investigation on the elastic effect of homogeneous turbulent shear flow. First, in the sense of Truesdell… read more here.
Keywords: effect; number turbulence; weissenberg number; turbulence ... See more keywords