A 3-D FREE SURFACE FLOW SIMULATIONS BASED ON THE LATTICE BOLTZMANN METHOD WITH THE PLIC-VOF

• SATO Kenta

  東北大学大学院 工学研究科

• KOSHIMURA Shunichi

  東北大学 災害科学国際研究所

Bibliographic Information

Other Title

• PLIC-VOF法を用いた格子ボルツマン法による3次元自由表面流れシミュレーション手法の開発
• Development of Three-dimensional Free Surface Flow Simulation Method by Lattice Boltzmann Method and PLIC-VOF Method

Abstract

 Free surface flow problems occur in disaster simulations such as tsunami flow in urban area. In this king of situation, a non-hydrostatic free surface numerical model is required to perform a tsunami inundation simulation. It is, however, difficult to carry out three-dimensional large-scale tsunami simulation because of the computing of the pressure Poisson equation in the incompressible Navier-Stokes equation.<br> In current study, we have developed a fully explicit three-dimensional free surface model by lattice Boltzmann method with the Piecewise Linear Interface Reconstruction - Volume of Fluid (PLIC-VOF) approach. Through the classical dam-breaking problem, we demonstrated that our present model has a convergence of model accuracy according to the spacing grid sizes. Besides, Our model can calculate the interface shapes seamlessly and settle the oscillations even at the high Reynolds number flow.

Journal

• Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering)

  Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 74 (4), I_427-I_432, 2018

  Japan Society of Civil Engineers

Keywords

• Lattice Boltzmann Method
• Computational Fluid Dynamics
• Three Dimensional Simulation
• Free Surface Flows
• Volume of Fluid
• Piecewise Linear Interface Reconstruction

Details

• CRID: 1390282763119160192
• NII Article ID: 130007628227
• DOI: 10.2208/jscejhe.74.i_427
• ISSN: 2185467X
• Web Site: https://www.jstage.jst.go.jp/article/jscejhe/74/4/74_I_427/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed