Fluid Mechanics: Open Access

Associate Professor, University of Cambridge, Japan

Publications

• Editorial   
  Extrudate shape of three-dimensional viscoelastic, non-isothermal extrusion flows
  Author(s): Arshad Shaik*
  
  A 3D transient non-isothermal finite element code is developed to predict the extrudate shape of viscoelastic fluids emerging from an asymmetric keyhole shaped die. The corner-line method is employed to model the movement of the free surfaces. The code is tested using two benchmark problems. First the corner-line method is tested employing a trumpet shaped object during a 3D uniaxial extensional flow. Secondly, the implementation of the energy balance and therefore the viscoelastic material behaviour is tested employing a non-isothermal pipeflow. For both benchmark problems convergence was obtained, giving confidence that the 3D non-isothermal swell problem is correctly implemented. The influence of shear-thinning, elasticity and temperature on the form of the extrudate is systematically studied. Results are shown for isothermal flows also as for non-isothermal flows, with isothermal .. Read More»
  DOI: 10.37421/2476-2296.21.8.e119

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