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A numerical study of the Kernel-conformation transformation for transient visco...
F. P. Martins; C. M. Oishi; A. M. Afonso; M. A. AlvesThis work presents a numerical application of a generic conformation tensor transformation for simulating highly elastic flows of non-Newtonian fluids typically observed in computational rheology. In the Kernel-conformation framework [14], the conformation tensor constitutive law for a viscoelastic fluid is transformed introducing a generic tensor transformation function. The numerical stability of the applicat...
Numerical simulation of drop impact and jet buckling problems using the eXtende...
C. M. Oishi; F. P. Martins; M. F. Tomé; M. A. AlvesThis work presents numerical simulations of two fluid flow problems involving moving free surfaces: the impacting drop and fluid jet buckling. The viscoelastic model used in these simulations is the eXtended Pom-Pom (XPP) model. To validate the code, numerical predictions of the drop impact problem for Newtonian and Oldroyd-B fluids are presented and compared with other methods. In particular, a benchmark on nu...