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Symmetry 2018, 10(4), 94; https://doi.org/10.3390/sym10040094

Fluid-Solid Boundary Handling Using Pairwise Interaction Model for Non-Newtonian Fluid

1,2
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1,2,* , 1,2,* , 3
,
1,2
and
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1
School of Computer and Communication Engineering, University of Science and Technology Beijing, Beijing 100083, China
2
Beijing Key Laboratory of Knowledge Engineering for Materials Science, Beijing 100083, China
3
Department of ICT & Natural Sciences, Norwegian University of Science and Technology, 6009 Aalesund, Norway
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Beijing No. 4 High School, Beijing 100034, China
*
Authors to whom correspondence should be addressed.
Received: 28 February 2018 / Revised: 29 March 2018 / Accepted: 31 March 2018 / Published: 3 April 2018
(This article belongs to the Special Issue Symmetry in Cooperative Applications III)
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Abstract

In order to simulate fluid-solid boundary interaction for non-Newtonian Smoothed Particle Hydrodynamics (SPH) fluids, we present a steady and realistic fluid-solid boundary handling method using symmetrical interaction forces. Firstly, we use the improved SPH method to model the non-Newtonian fluid. Secondly, the density of boundary particle is created into the calculation of fluid-solid interaction forces. Besides, we apply friction conditions to constrain the fluid particles at the boundary. Finally, we apply the predictive-corrective scheme to correct the density deviation and improve boundary computing efficiency. The experiment confirms the feasibility for the interaction between non-Newtonian fluid and solid objects with this method. At the same time, it reflects the viscous characteristics and ensures the physical properties of non-Newtonian fluid. In addition, compared to existing methods, this method is more stable and easier to implement. View Full-Text
Keywords: fluid simulation; Smoothed Particle Hydrodynamics (SPH); non-Newtonian fluid; boundary handling fluid simulation; Smoothed Particle Hydrodynamics (SPH); non-Newtonian fluid; boundary handling
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Wang, X.; Ban, X.; He, R.; Wu, D.; Liu, X.; Xu, Y. Fluid-Solid Boundary Handling Using Pairwise Interaction Model for Non-Newtonian Fluid. Symmetry 2018, 10, 94.

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