Numerical simulations of shock/obstacle interactions using an improved ghost-cell immersed boundary method

2019 ◽  
Vol 182 ◽  
pp. 128-143 ◽  
Author(s):  
Yang Zhang ◽  
Xinglong Fang ◽  
Jianfeng Zou ◽  
Xing Shi ◽  
Zhenhai Ma ◽  
...  
Keyword(s):  
Numerical Simulations ◽  
Immersed Boundary Method ◽  
Immersed Boundary ◽  
Ghost Cell ◽  
Boundary Method

scholarly journals A Ghost-Cell Immersed Boundary Method for Wave–Structure Interaction Using a Two-Phase Flow Model

Water ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 3346
Author(s):  
Yuan-Shiang Tsai ◽  
Der-Chang Lo
Keyword(s):  
Immersed Boundary Method ◽  
Flow Model ◽  
Two Phase Flow ◽  
Immersed Boundary ◽  
Phase Flow ◽  
Ghost Cell ◽  
Two Phase ◽  
Boundary Method ◽  
Lift Forces ◽  
Drag And Lift

The air-water two-phase flow model is developed to study the transformation of monochromatic waves passing over the submerged structure. The level set method is employed to describe the motion of the interface while the effect of the immersed object on the fluid is resolved using the ghost-cell immersed boundary method. The computational domain integrated with the air-water and fluid-solid phases allows the use of uniform Cartesian grids. The model simulates the wave generation, wave decomposition over a submerged trapezoidal breakwater, and the formation of the vortices as well as the drag and lift forces caused by the surface waves over three different configurations of the submerged structures. The numerical results show the capability of the present model to accurately track the deformation of the free surface. In addition, the variation of the drag and lift forces depend on the wavelength and wave induced vortices around the submerged object. Hence, the study observes that the triangular structure experiences the relatively small wave force.

scholarly journals Fully resolved simulations of single char particle combustion using a ghost‐cell immersed boundary method

AIChE Journal ◽  
2018 ◽  
Vol 64 (7) ◽  
pp. 2851-2863 ◽  
Author(s):  
Kun Luo ◽  
Chaoli Mao ◽  
Jianren Fan ◽  
Zhenya Zhuang ◽  
Nils Erland L. Haugen
Keyword(s):  
Immersed Boundary Method ◽  
Immersed Boundary ◽  
Ghost Cell ◽  
Particle Combustion ◽  
Boundary Method ◽  
Char Particle

A directional ghost-cell immersed boundary method for incompressible flows

2020 ◽  
Vol 404 ◽  
pp. 109122 ◽  
Author(s):  
Cheng Chi ◽  
Abouelmagd Abdelsamie ◽  
Dominique Thévenin
Keyword(s):  
Immersed Boundary Method ◽  
Incompressible Flows ◽  
Immersed Boundary ◽  
Ghost Cell ◽  
Boundary Method

Numerical simulations of three-dimensional foam by the immersed boundary method

2014 ◽  
Vol 269 ◽  
pp. 1-21 ◽  
Author(s):  
Yongsam Kim ◽  
Ming-Chih Lai ◽  
Charles S. Peskin ◽  
Yunchang Seol
Keyword(s):  
Numerical Simulations ◽  
Immersed Boundary Method ◽  
Three Dimensional ◽  
Immersed Boundary ◽  
Boundary Method
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