Simulation of viscoelastic two-phase flows with LS-DYNA ICFD
Simulations of viscoelastic flows are presented. Viscoelasticity is accounted for by solving a constitutive equation for the conformation tensor - the viscoelastic stress tensor is directly related to the conformation tensor [1] and the divergence of the viscoelastic stress tensor yields an extra momentum source. The Oldroyd-B constitutive model is here considered [1]. Results of several benchmark tests are presented. Implementation is first tested on a two-dimensional lid-driven cavity flow. Results of two-dimensional and three-dimensional Oldroyd-B liquid jets are then presented. Viscoelastic models are used in applications like food-processing, polymer melt processing, blood flow modeling.
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Simulation of viscoelastic two-phase flows with LS-DYNA ICFD
Simulations of viscoelastic flows are presented. Viscoelasticity is accounted for by solving a constitutive equation for the conformation tensor - the viscoelastic stress tensor is directly related to the conformation tensor [1] and the divergence of the viscoelastic stress tensor yields an extra momentum source. The Oldroyd-B constitutive model is here considered [1]. Results of several benchmark tests are presented. Implementation is first tested on a two-dimensional lid-driven cavity flow. Results of two-dimensional and three-dimensional Oldroyd-B liquid jets are then presented. Viscoelastic models are used in applications like food-processing, polymer melt processing, blood flow modeling.
Solomenko_Ansys.pdf
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