Development of an accurate and efficient particle method for practical simulations of multiphase fluid flows

2014 Fiscal Year Final Research Report

• Project/Area Number: 25820224
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Hydraulic engineering
• Research Institution: Kyoto University
• Principal Investigator: KHAYYER Abbas 京都大学, 工学(系)研究科(研究院), 准教授 (80534263)
• Project Period (FY): 2013-04-01 – 2015-03-31
• Keywords: Particle Method / Multiphase flows / gas-liquid flows / CFD

Outline of Final Research Achievements

The research aimed at proposing an accurate, reliable particle-based computational tool for practical simulations of two-phase gas-liquid flows. During the first phase of this research an accurate two-phase particle method was developed and rigorously verified. This part of research was published in Journal of Computational Physics. The developed multiphase method was characterized by a mathematically-physically consistent scheme for interface density modeling based on Taylor series expansion. The scheme could tackle the mathematical discontinuity of density at the interface and could also keep the sharpness of spatial density variations. Although the second phase of research was initially devoted to GPU-based implementation of the developed multiphase code, the method was decided to be further enhanced for a comprehensive and accurate modeling of multiphase flows, including surface tension and turbulence modeling. An accurate surface tension model was then proposed.

Free Research Field

Hydraulics