Nonlinear dynamics of a solid particle in an acoustically excited viscoelastic fluid. II. Acoustic radiation force

Doinikov, Alexander A.; Fankhauser, Jonas; Dual, Jürg

doi:10.1103/physreve.104.065108

Cited by 4 publications

(2 citation statements)

References 9 publications

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“…Another limitation of the code is the number of theories in the library. Currently, the model from Hasegawa and Yosioka [4] and the viscoelastic model from Doinikov [13] are being implemented, and they will be released in future versions. For the codebase to be as extensive as possible, we again emphasize the open-source character of the library.…”

Section: Errors In Publications Discovered Through Testingmentioning

confidence: 99%

“…To the authors' best knowledge, the first formulation of the ARF in a standing wave field that includes the fluid viscosity was given by Danilov [7]. His theory was later generalized by Doinikov, who published several articles treating the case of a viscous fluid [8,9], a thermoviscous fluid [10][11][12] and most recently a viscoelastic fluid [13]. Using a similar approach as Gor'kov, Settnes and Bruus also found an expression for the ARF in a viscous fluid [14].…”

Section: Introductionmentioning

confidence: 99%

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OSAFT Library: An Open-Source Python Library for Acoustofluidics

2022

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In this article, we present the Open-Source AcoustoFluidics Theories (OSAFT) library (version 0.9.14), a Python library for acoustofluidics. The focus of the library is the classical problem of a particle suspended in a fluid and subjected to an incident acoustic wave. The Python code provides easy access to a number of theories describing acoustic scattering, acoustic streaming, and most importantly the acoustic radiation force exerted on the particle. At the time of submission of this article, six different theoretical models and various limiting cases thereof are available. All are treating the problem of a single, spherical particle in an infinite 3D-domain subjected to an incident plane standing or plane traveling wave. The implementations of further theories are currently under development. Our code is designed to be extensible. A library of fluid and solid material models facilitates the implementation of new theories. A unified application programming interface (API), which is used across all models, makes comparisons between different theories straightforward. Such comparisons can be made directly by the user or through the plotting capabilities of our library. The code is distributed through Python’s standard software repository PyPi. Illustrative examples on the project’s website serve as a starting point for learning the library’s API. For a more in-depth understanding of the code, complete documentation of the codebase, directed at users as well as future collaborators, is available online. In an effort to make the library as extensive as possible, the authors of this article are looking for collaborators on the project.

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Section: Errors In Publications Discovered Through Testingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

OSAFT Library: An Open-Source Python Library for Acoustofluidics

2022

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Acoustic interaction force between two particles immersed in a viscoelastic fluid

2023

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The interaction acoustic radiation force in a standing plane wave applied to each small solid sphere in a two-particle system immersed in a viscoelastic fluid is studied in a framework based on perturbation theory. In this work, the first- and second-order perturbation theories are used in the governing equations with considering the upper-convected Maxwell model to obtain mathematical modeling. We use the finite element method to carry out simulations and describe the behavior of the viscoelastic fluid. The mathematical development is validated from three literature case studies: a one-particle system in a viscous fluid, a two-particle system in a viscous fluid, and a one-particle system in a viscoelastic fluid. The novelty of this study is to establish the acoustic interaction force between two spherical particles immersed in a viscoelastic fluid. The results show that the acoustic interaction force between two spheres is greater in a viscous fluid in comparison with the viscoelastic fluid with the same shear viscosity. This behavior is due to the relaxation time effect. It is also indicated that the acoustic interaction force between the particles decreases by the relaxation time and increases by the fluid's viscosity. A mathematical formula is proposed for the acoustic interaction force between particles located close to each other in a viscoelastic fluid.

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