Numerical simulations have been undertaken for the benchmark problem of fountain flow present in injection-mold filling and collapse of a guasi-solid core by flow nonlinear viscoplastic fluid with the free surface. The finite element method is used to provide numerical results for both cases of planar and axisymmetric domains under steady-state conditions. The Herschel- Bulkley model of viscoplasticity is used, which reduces with appropriate modifications to the Bingham, power-law and Newtonian models. The present results extend previous ones regarding the shape of the front, which is essential in correctly capturing the flowfield.
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