A corrected particle method with high-order Taylor expansion for solving the viscoelastic fluid flow
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In this paper, a corrected particle method based on the smoothed particle hydrodynamics (SPH) method with high-order Taylor expansion (CSPH-HT) for solving the viscoelastic flow is proposed and investigated. The validity and merits of the CSPH-HT method are first tested by solving the nonlinear high order Kuramoto-Sivishinsky equation and simulating the drop stretching, respectively. Then the flow behaviors behind two stationary tangential cylinders of polymer melt, which have been received little attention, are investigated by the CSPH-HT method. Finally, the CSPH-HT method is extended to the simulation of the filling process of the viscoelastic fluid. The numerical results show that the CSPH-HT method possesses higher accuracy and stability than other corrected SPH methods and is more reliable than other corrected SPH methods.
KeywordsSmoothed particle hydrodynamics High-order Taylor expansion Viscoelastic fluid Extended pom-pom model
The support of the National Natural Science Foundation of China (Grants 11501495, 51541912, 51409227), the Natural Science Foundation of Jiangsu Province, China (Grants BK20130436, BK20150436), the Postdoctoral Science Foundation of China (Grants 2014M550310, 2015M581869, 2015T80589), and the Natural Science Foundation of the Higher Education Institutions of Jiangsu Province (Grant 15KJB110025) are gratefully acknowledged.
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