Numerical simulation of two-dimensional complex flows around bluff bodies using the immersed boundary method

Silva, Ana Lúcia F. de Lima e; Silva, Alice Rosa da; Neto, Aristeu da Silveira

doi:10.1590/s1678-58782007000400006

Cited by 11 publications

(2 citation statements)

References 14 publications

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“…Flows can also be modeled by these equations in primitive variables [14]. In this section, the IBM combined with the Virtual Physical Model (VPM) [15] is summarized. For a viscous and incompressible flow, the IBM is based on the Navier-Stokes Equation (1) with an added force source term which acts on the fluid so that a particle perceives the existence of the solid interface.…”

Section: General Aspects Of the Numerical Methodology Mathematical Fomentioning

confidence: 99%

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Rotational Oscillation Effect on Flow Characteristics of a Circular Cylinder at Low Reynolds Number

Silva

Neto

Lima

2015

WJM

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Two dimensional numerical simulations of flow around a rotationally oscillating circular cylinder were performed at Re = 1000. A wide range of forcing frequencies, f r , and three values of oscillation amplitudes, A, are considered. Different vortex shedding modes are observed for a fixed A at several values of f r , as well as for a fixed f r at different values of A. The 2C mode of vortex shedding was obtained in the present study. It is important to point out that this mode has not been observed by other investigators for rotationally oscillating case. Also, it is verified that this mechanism has great influence on the drag coefficient for high frequency values. Furthermore, the lift and pressure coefficients and the power spectra density are also analyzed.

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Section: General Aspects Of the Numerical Methodology Mathematical Fomentioning

confidence: 99%

“…By this strategy, one can use a simple Cartesian grid and it is not necessary to move the grids. According to the VPM [15] the Lagrangian force field is calculated based on the momentum balance over a fluid particle placed on the Lagrangian points.…”

Section: General Aspects Of the Numerical Methodology Mathematical Fomentioning

confidence: 99%

Rotational Oscillation Effect on Flow Characteristics of a Circular Cylinder at Low Reynolds Number

Silva

Neto

Lima

2015

WJM

Self Cite

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Numerical investigation of the flow characteristics around two sequential cylinders with circular and square cross-sections

Sadeghi,

Yadegari,

Khoshnevis

2024

J Mar Sci Technol

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Comparison of wake structures and force measurements behind three side-by-side cylinders

Islam

Rahman

Ying

et al. 2014

J Braz. Soc. Mech. Sci. Eng.

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Numerical simulation of two-dimensional complex flows around bluff bodies using the immersed boundary method

Abstract: This paper presents a two-dimensional numerical simulation of flows around different bluff bodies, at Re = 100 and 200, using

Cited by 11 publications

References 14 publications

Rotational Oscillation Effect on Flow Characteristics of a Circular Cylinder at Low Reynolds Number

Rotational Oscillation Effect on Flow Characteristics of a Circular Cylinder at Low Reynolds Number

Numerical investigation of the flow characteristics around two sequential cylinders with circular and square cross-sections

Comparison of wake structures and force measurements behind three side-by-side cylinders

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