Next Article in Journal
Spatiotemporal Analysis of Produced Water Demand for Fit-For-Purpose Reuse—A Permian Basin, New Mexico Case Study
Previous Article in Journal
A Novel Procedure for Minimizing the Volume of Water Tanks in Water Supply Systems
 
 
Article

A GPU-Based δ-Plus-SPH Model for Non-Newtonian Multiphase Flows

by 1 and 1,2,*
1
Department of Geotechnical Engineering, College of Civil Engineering, Tongji University, Shanghai 200092, China
2
Key Laboratory of Geotechnical and Underground Engineering of the Ministry of Education, Tongji University, Shanghai 200092, China
*
Author to whom correspondence should be addressed.
Academic Editor: Giuseppe Pezzinga
Water 2022, 14(11), 1734; https://doi.org/10.3390/w14111734
Received: 27 April 2022 / Revised: 22 May 2022 / Accepted: 26 May 2022 / Published: 28 May 2022
(This article belongs to the Section Hydraulics and Hydrodynamics)
A multiphase extension of the δ-plus-SPH (smoothed particle hydrodynamics) model is developed for modeling non-Newtonian multiphase flow. A modified numerical diffusive term and special shifting treatment near the phase interface are introduced to the original δ-plus-SPH model to improve the accuracy and numerical stability of the weakly incompressible SPH model. The Herschel–Bulkley model is used to describe non-Newtonian fluids. A sub-particle term is added in the momentum equation based on a large eddy simulation. The graphic processing unit (GPU) acceleration technique is applied to increase the computational efficiency. Three test cases including, a static tank, Poiseuille flow, and submarine debris flow, are presented to assess the performance of the new multiphase SPH model. Comparisons with analytical solutions, experimental data, and previous numerical results indicate that the proposed SPH model can capture highly transient incompressible two-phase flows with consistent pressure across the interface. View Full-Text
Keywords: smoothed particle hydrodynamics; multiphase flows; non-Newtonian fluid; parallel computing smoothed particle hydrodynamics; multiphase flows; non-Newtonian fluid; parallel computing
Show Figures

Figure 1

MDPI and ACS Style

Shi, H.; Huang, Y. A GPU-Based δ-Plus-SPH Model for Non-Newtonian Multiphase Flows. Water 2022, 14, 1734. https://doi.org/10.3390/w14111734

AMA Style

Shi H, Huang Y. A GPU-Based δ-Plus-SPH Model for Non-Newtonian Multiphase Flows. Water. 2022; 14(11):1734. https://doi.org/10.3390/w14111734

Chicago/Turabian Style

Shi, Hao, and Yu Huang. 2022. "A GPU-Based δ-Plus-SPH Model for Non-Newtonian Multiphase Flows" Water 14, no. 11: 1734. https://doi.org/10.3390/w14111734

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop