Application of Overlapping Mesh in Numerical Hydrodynamics

Panahi, Roozbeh; Shafieefar, Mehdi

doi:10.2478/v10012-008-0018-4

Cited by 1 publication

(1 citation statement)

References 13 publications

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“…Dynamic mesh morphing, arbitrary mesh interface (AMI) and sliding grid interface method are three of the most common methods in simulating moving bodies with a broad engineering application such as rotating turbines, floating and oscillatory bodies in fluids [14,15]. The concept of Overset meshes has also been implemented in some rotorcraft [16] and hydrodynamic applications [17,18].…”

Section: Introductionmentioning

confidence: 99%

Performance of Overset Mesh in Modeling the Wake of Sharp-Edge Bodies

Verma

Hemmati

2020

Computation

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The wake dynamics of sharp-edge rigid panels is examined using Overset Grid Assembly (OGA) utilized in OpenFOAM, an open-source platform. The OGA method is an efficient solution technique based on overlap of a single or multiple moving grids on a stationary background grid. Five test cases for a stationary panel at different angle of attack are compared with available computational data, which show a good agreement in predicting global flow variables, such as mean drag. The models also provided accurate results in predicting the main flow features and structures. The flow past a pitching square panel is also investigated at two Reynolds numbers. The study of surface pressure distribution and shear forces acting on the panel suggests that a higher streamwise pressure gradient exists for the high Reynolds number case, which leads to an increase in lift, whereas the highly viscous effects at low Reynolds number lead to an increased drag production. The wake visualizations for the stationary and pitching motion cases show that the vortex shedding and wake characteristics are captured accurately using the OGA method.

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Section: Introductionmentioning

confidence: 99%