2014 ISEANS

International Symposium on Engineering and Natural Sciences

May 22-24, 2014 Beijing, China









Keynote Speech

201405 Keynote

Topics: Pressure Correction Method for Fluid-Particle Interaction and Two-Phase Flow

Speaker: San-Yih Lin


Professor
Department of Aeronautics and Astronautics
National Cheng Kung University, Tainan, Taiwan


Summary of Keynote Speech

A pressure correction method coupled with a direct-forcing immersed boundary (IB) method and the volume of fluid (VOF) method is developed to simulate fluid-particle interaction and two-phase flows. This method uses a pressure correction method to solve incompressible flow fields, an IB method to handle fluid-particle interactions, and the VOF method to solve the two-phase flow. A direct forcing method is introduced in the IB method to capture particle motions. A volume fraction function is introduced in the VOF method and is governed by an advection equation. A third-order modified monotone upwind scheme for conservation law (modified MUSCL) is used to solve the solutions of the advection equation. Moreover, by applying the Gauss theorem, the formulas for computing the hydrodynamic force and torque acting on the particle from flows are derived from the volume integral of the particle instead of the particle surface. For demonstrating the efficiency and capability of the present method, sedimentations of many spherical particles in an enclosure, three-dimensional broken dam problem, three-dimensional rising bubble, and three-dimensional wave impact on a tall structure are performed. Finally, the numerical method is applied to investigate the granular flow impact on a tall structure and the bubble generation and the flow of a falling ellipse.

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Important Dates

Submission Deadline

August 22, 2019

Still Open

Notification of Acceptance

August 30, 2019

(Paper reviewing takes 10-20 days)

Registration & Payment Deadline

September 20, 2019

Still Open

Conference Date

November 19-21, 2019

Contact & Inquiry

ISEANS Secretariat

Email: iseans@iseans.org