A conservative immersed interface method for Large-Eddy Simulation of incompressible flows

Meyer, M.; Devesa, Antoine; Hickel, Stefan; Hu, Xiangyu; Adams, Nikolaus A.

doi:10.1016/j.jcp.2010.04.040

Cited by 112 publications

(60 citation statements)

References 57 publications

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“…It is essentially similar to the conclusion obtained by Lee et al (2011). Unlike the approach employed in Lee et al (2011) and Lee and You (2013), Seo and Mittal adopted the Cartesian cut-cell approach (Ye et al 1999, Udaykumar et al 2001 in combination with a virtual merging technique (Meyer et al 2010) to reduce the spurious oscillations. Cheny and Botella (2010) Zhang et al discretisation of the fluxes in the cut-cells by enforcing the strict conservation of total mass, momentum and kinetic energy at the discrete level.…”

Section: Introductionsupporting

confidence: 63%

Improvement of mass conservation and reduction of spurious oscillations for the local DFD method

Zhang

Zhou

2015

International Journal of Computational Fluid Dynamics

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By introducing a mass source/sink term into the continuity equation, the mass-conservation property of the local domain-free discretisation (DFD) method is improved to reduce the spurious oscillations in the simulation of moving-boundary problems. The mass source/sink term is constructed by evaluating the mass flux through the solid part of the control volume split by the immersed boundary. Additionally, some special treatments are given for the multi-valued nodes associated with thin bodies. The introduction of source/sink term has also been extended to three-dimensional problems. Unlike the ghost-cell immersed boundary method, coupling the mass source/sink algorithm with the local DFD method is implemented on triangular and tetrahedral meshes. Compared to the hybrid reconstruction formulation, the properties of the original local DFD method can be preserved better. Numerical experiments for two-and three-dimensional moving-boundary problems show that the present mass source/sink treatment can reduce spurious oscillations effectively.

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Section: Introductionsupporting

confidence: 63%

Improvement of mass conservation and reduction of spurious oscillations for the local DFD method

Zhang

Zhou

2015

International Journal of Computational Fluid Dynamics

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“…This is totally different from the traditional approach [14], in which the solid/fluid nodes around the interface are used. In contrast, Cheny et al [15] and Meyer et al [16] used the LS function to track the solid-fluid interface, but they used the cut-cell methods to solve the transient fluid flow, with the drawbacks of small time step and gird size. In this study, a modified LS-based Cartesian-IB method is developed to simulate the interactions between fluid flows and the deformed fish body.…”

Section: Introductionmentioning

confidence: 99%

CFD Studies of the Effects of Waveform on Swimming Performance of Carangiform Fish

Cui¹,

Gu²,

Li³

et al. 2017

Applied Sciences

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Carangiform fish, like mackerel, saithe and bass, swim forward by rhythmically passing body waves from the head to the tail. In this paper, the undulating motions are decomposed into the travelling part and the standing part by complex orthogonal decomposition (COD), and the ratio between these two parts, i.e., the travelling index, is proposed to analyse the waveform of fish-like movements. To further study the relative influences of the waveform on swimming performance, a self-propelled model of carangiform fish is developed by the level set/immersed boundary (LS-IB) method, and the in-house code is tested by two cases of flow past a sphere and an oscillating cylinder, respectively. In this study, the travelling index is varied in ranges up to 50% larger or smaller than the biological data. The results show that carangiform fish seem to favour a fast and efficient swimming motion with a travelling index of around 0.6. Meanwhile, we study several numerical cases with different amplitude coefficients (0.5~1.1) and tail-beat frequency (2 Hz~5 Hz), and then compare their swimming performance with each other. We found that the forward speed is closely related to the travelling index and tail-beat frequency, while the swimming efficiency is increased with the tail-beat frequency and amplitude coefficient. These results are also consistent with biological observations, and they might provide beneficial guidance with respect to the future design of robotic fish.

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“…the prospect of using LES and DES in engineering design have been enlightened (Larsson & Wang, 2014), Meyer et al (Meyer, Devesa, Hickel, Hu, & Adams, 2010) has contributed a conservative immersed interface method for LES of incompressible flows. Squires (Squires, 2010) has examined and performed a LES applications in aerodynamics.…”

Section: Detached Eddy Simulation (Des)mentioning

confidence: 99%

The Flow Visualization CFD Studies of the Fuselage and Rolled-up Vortex Effects of the Chengdu J-10-like Fighter Canard

Sutrisno¹,

Rochmat²,

Wibowo³

et al. 2018

MAS

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Fighter aircrafts with high maneuverability and swiftness are due to fuselage effects, caused by canard-fuselage-main wing configuration. Even though the flows around fighters are highly complex, mostly they create rolled-up vortices capable to delay stalls and increase maximum lifts (Calderon, Wang & Gursul, 2012;Mitchell & Delery, 2001;Boelens, 2012;Chen, Liu, Guo & Qu, 2015). The vortex dynamics analysis method employment is introduced, in this case we focus only on the fighter canard. It characterizes the vortex core, develops the pitching moment & main wing total lift, and exploits the vortex centre visualization, the strength, negative surface pressure and its trajectory. This paper explains the influence of the fighter fuselage, it generates rolled-up vortex effects, causes the flow deflected by the fighter fuselage head, strengthen the vortex centre to become vortex core. Above the aircraft head, due to the curved contour head effect, the second vortex centers are developed makes the vortex center above the head more dynamic.Comparing with fighter without fuselage, the flow property changes, for Chengdu J-10-like model with fuselage, are concentrated at the canard leading edge, where the negative pressures are stronger, since the maximum axial velocities of the vortex centre are higher, and give more distinctive vortex breakdown locations.

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A conservative immersed interface method for Large-Eddy Simulation of incompressible flows

Cited by 112 publications

References 57 publications

Improvement of mass conservation and reduction of spurious oscillations for the local DFD method

Improvement of mass conservation and reduction of spurious oscillations for the local DFD method

CFD Studies of the Effects of Waveform on Swimming Performance of Carangiform Fish

The Flow Visualization CFD Studies of the Fuselage and Rolled-up Vortex Effects of the Chengdu J-10-like Fighter Canard

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