scholarly journals Investigation of cross flow over a circular cylinder at low Re using the Immersed Boundary Method (IBM)

2015 ◽  
Author(s):  
K. Rehman
Keyword(s):  
Circular Cylinder ◽  
Immersed Boundary Method ◽  
Cross Flow ◽  
Immersed Boundary ◽  
Boundary Method

scholarly journals A Stress Mapping Immersed Boundary Method for Viscous Flows

2021 ◽  
Vol 87 (3) ◽  
pp. 1-20
Author(s):  
Karim M. Ali ◽  
Mohamed Madbouli ◽  
Hany M. Hamouda ◽  
Amr Guaily
Keyword(s):  
Immersed Boundary Method ◽  
Stokes Equations ◽  
Cross Flow ◽  
Navier Stokes ◽  
Immersed Boundary ◽  
Element Formulation ◽  
Navier Stokes Equations ◽  
Boundary Method ◽  
Background Grid ◽  
Dimensional Simulation

This work introduces an immersed boundary method for two-dimensional simulation of incompressible Navier-Stokes equations. The method uses flow field mapping on the immersed boundary and performs a contour integration to calculate immersed boundary forces. This takes into account the relative location of the immersed boundary inside the background grid elements by using inverse distance weights, and also considers the curvature of the immersed boundary edges. The governing equations of the fluid mechanics are solved using a Galerkin-Least squares finite element formulation. The model is validated against a stationary and a vertically oscillating circular cylinder in a cross flow. The results of the model show acceptable accuracy when compared to experimental and numerical results.

MHD flow past a circular cylinder using the immersed boundary method

2010 ◽  
Vol 39 (2) ◽  
pp. 345-358 ◽  
Author(s):  
D.G.E. Grigoriadis ◽  
I.E. Sarris ◽  
S.C. Kassinos
Keyword(s):  
Circular Cylinder ◽  
Immersed Boundary Method ◽  
Mhd Flow ◽  
Immersed Boundary ◽  
Flow Past ◽  
Boundary Method

NUMERICAL INVESTIGATION ON THE INTERACTION OF CYLINDER AND SHOCKWAVE BASED ON THE IMMERSED BOUNDARY METHOD

2009 ◽  
Vol 23 (03) ◽  
pp. 317-320 ◽  
Author(s):  
XIAOHAI JIANG ◽  
ZHIHUA CHEN ◽  
HONGZHI LI
Keyword(s):  
Shock Wave ◽  
Circular Cylinder ◽  
Immersed Boundary Method ◽  
Incident Shock ◽  
Incident Shock Wave ◽  
Immersed Boundary ◽  
Square Cylinder ◽  
Boundary Method ◽  
Modeling Flow ◽  
Good Agreement

The immersed boundary method (IBM) is an innovative approach for modeling flow with complex geometries and is more efficient than traditional method. In the present investigation, the shock wave propagation over one circular cylinder is simulated numerically with the Ghost-Body Immersed Boundary Method and high-resolution Roe scheme. To validate the IBM, a plane incident shock wave passing through a square cylinder is predicted and good agreement with previous experiments was obtained. Then based on our calculation, the reflection and diffraction processes of a shock wave passing through a circular cylinder were visualized and discussed in detail.

Application of Combination of Local Domain Free Discretization and Immersed Boundary Method (LDFD-IBM) to Numerical Simulation of 3D Flows Over a Circular Cylinder

2014 ◽  
Author(s):  
Yanling Wu ◽  
Chang Shu ◽  
Johan Gullman-Strand
Keyword(s):  
Circular Cylinder ◽  
Immersed Boundary Method ◽  
Adaptive Mesh Refinement ◽  
Solid Wall ◽  
Three Dimensional ◽  
Immersed Boundary ◽  
Local Domain ◽  
Cartesian Mesh ◽  
Boundary Method ◽  
Dimensional Version

In this paper, the recent developed Local Domain Free Discretization method combined with Immersed Boundary Method (called LDFD-IBM) is extended from two-dimensional version to three-dimensional version. LDFD-IBM is a new member in the family of Cartesian mesh methods. The advantages of LDFD-IBM over other Cartesian mesh solvers includes: no cutting cell, easy to adaptive mesh refinement, easy to implement for moving boundary problems, truly second order accuracy over whole domain, no flow penetration into the solid wall. LDFD-IBM three-dimensional solver is then used to simulate three-dimensional flow past a circular cylinder. Both oblique mode and parallel mode of vortex shedding of the cylinder in three-dimensional configuration are reproduced according to different end-conditions. Oblique shedding is one of the important three-dimensional features that could influence the amplitude, frequency and phase of the flow-induced forces.

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