Vortex particle methods in aeroacoustic calculations

Huberson, S.; Rivoalen, Elie; Voutsinas, Spyros G.

doi:10.1016/j.jcp.2008.06.011

Cited by 11 publications

(9 citation statements)

References 30 publications

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“…A three-dimensional software is under development in the LOMC laboratory of Le Havre University, based on a Lagrangian vortex particle method [12][13][14][15][16]. The vortical flow is discretized into particles, which are small volumes of fluid carrying intrinsic physical quantities such as their position and vorticity.…”

Section: Comparison With Numerical Resultsmentioning

confidence: 99%

Numerical and experimental study of the interaction between two marine current turbines

Mycek

Gaurier

Germain

et al. 2013

International Journal of Marine Energy

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Abstract-The understanding of interaction effects between marine energy converters represents the next step in the research process that should eventually lead to the deployment of such devices. Although some a priori considerations have been suggested recently, very few real condition studies have been carried out concerning this issue.We therefore ran trials on 1/30 th scale models of three-bladed marine current turbine prototypes in a flume tank. Our work focuses on the case where a turbine is placed at different locations in the wake of a first device. The interaction effects in terms of performance and wake of the second turbine are examined and compared to the results obtained on single-device configurations. Besides, we are currently developing a three-dimensional code based on a vortex method, which will be used in the near future to model more complex layouts.The experimental study shows that the second turbine is deeply affected by the presence of an upstream device and that a compromise between individual device performance and inter-device spacing is necessary. Numerical results show good agreement with the experiment and are promising for the future modelling of turbine farms.

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Section: Comparison With Numerical Resultsmentioning

confidence: 99%

Numerical and experimental study of the interaction between two marine current turbines

Mycek

Gaurier

Germain

et al. 2013

International Journal of Marine Energy

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“…The second term in the right-hand side of Equation (13) represents the viscous diffusion effect, which describes the air viscosity through the vorticity transportation. This term, neglected in Refs (13)(14)(15)(16), is considered in this paper and its solution can be derived using the particle strength exchange (PSE) method (21) . The basis of this approach is using an integral operator to approximate the Laplacian operator, and the expression form can be written as…”

Section: Viscous Diffusion Effectmentioning

confidence: 99%

“…Compared with the free-wake method, the vortex particle method is a powerful numerical tool to solve the flow around the complex geometries. The wake of the lifting surface is modelled with vortex particles (13) and there are fewer empirical parameters. This approach has been combined with a panel method to predict the aircraft's aerodynamic forces (13)(14)(15)(16) .…”

Section: Introductionmentioning

confidence: 99%

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Influence analysis of propeller location parameters on wings using a panel/viscous vortex particle hybrid method

Wang

Zhou

et al. 2017

Aeronaut. j.

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For aircraft that employ distributed propeller propulsion systems, the distributed propeller slipstream increases the analysis complexity. The objective of this paper is to rapidly analyse the influence of propeller slipstream on a wing using a fast prediction approach to perform conceptual design studies. This fast approach is implemented through a panel/viscous vortex particle hybrid method taking into account the air viscosity effect. The parametric studies of propeller streamwise, spanwise, vertical installed position, propeller number and rotational direction are conducted for a rectangular wing platform in two different propeller-wing configurations. The results indicate that the propeller slipstream causes both the augmentations of the wing lift and drag in a traditional tractor propeller layout. For an over-the-wing propeller configuration, however, the obvious lift increase and drag decrease can be obtained. A rear propeller position relative to the wing chord leads to a beneficial increase in lift while a fore propeller location is able to decrease the wing drag. The maximum increment of the lift-to-drag ratio can be achieved by 17.6% when the propeller is located at 30% of the wing chord, which shows a considerable advantage in improving the wing aerodynamic efficiency.

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“…3. The Ffowcs Williams-Hawkings equation that treats the aerodynamic sound of rotating wings (Ffowcs Williams & Hawkings, 1969, Huberson et al, 2008. 4.…”

Section: Introductionmentioning

confidence: 99%

Simulation of Acoustic Sound Produced by Interaction Between Vortices and Arbitrarily Shaped Body in Multi-Dimensional Flows by the Vortex Method

Ogami¹

2012

Advanced Methods for Practical Applications in Fluid Mechanics

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Vortex particle methods in aeroacoustic calculations

Cited by 11 publications

References 30 publications

Numerical and experimental study of the interaction between two marine current turbines

Numerical and experimental study of the interaction between two marine current turbines

Influence analysis of propeller location parameters on wings using a panel/viscous vortex particle hybrid method

Simulation of Acoustic Sound Produced by Interaction Between Vortices and Arbitrarily Shaped Body in Multi-Dimensional Flows by the Vortex Method

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