Finite element modeling of ultrasonic separation at the microscale

Araz, M.K.; Lee, Chung-Hoon; Lal, Amit

doi:10.1109/ultsym.2004.1417691

Cited by 5 publications

(3 citation statements)

References 4 publications

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“…These distributions obtained from numerical simulation well agree with the results obtained from analytic solutions. 16) One of the advantages of the numerical approach is its easy adoption of symmetry breaking in the device structure such as ellipticity of the tube cross-section and non-uniform density of fluid along the tube.…”

Section: Simulationmentioning

confidence: 99%

“…However, the acoustic force along the transverse (y) direction can be strongly dependent on frequency. 16) Another important factor influencing the magnitude of the acoustic force is the size of the particles. The force is proportional to the cubic of particle radius (R) as shown in Eq.…”

Section: Simulationmentioning

confidence: 99%

“…Very recently we found a report explaining the effect of the particle velocity gradient on the acoustic force depending on the acoustic frequency. 16) This paper contains complementary contents to the analyses.…”

Section: Introductionmentioning

confidence: 99%

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Theoretical and Experimental Analyses of Particle Trapping in a Capillary Tube Using a Flexural Acoustic Wave

Kim¹,

Kim²,

Lee³

et al. 2013

Jpn. J. Appl. Phys.

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Acoustic trapping of particles in a capillary tube using a flexural acoustic wave was studied both theoretically and experimentally. Acoustic force potential was calculated using numerical simulation based on the finite element method. The distribution of particles which resulted from the force potential was categorized into four cases, depending on the physical properties of particles and fluid. Acoustic trapping was demonstrated using a robust, compact acoustic transducer, providing arbitrary interaction length. Theoretical estimation was successfully confirmed experimentally.

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Section: Simulationmentioning

confidence: 99%

Section: Simulationmentioning

confidence: 99%

See 1 more Smart Citation

Theoretical and Experimental Analyses of Particle Trapping in a Capillary Tube Using a Flexural Acoustic Wave

Kim¹,

Kim²,

Lee³

et al. 2013

Jpn. J. Appl. Phys.

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Prediction of retention times and peak widths in temperature-programmed gas chromatography using the finite element method

Aldaeus

Thewalim

Colmsjö

2009

Journal of Chromatography A

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Design and Fabrication of An Ultrasonic Microdevice for Microparticles Separation

Sun

Zhang

et al. 2007

2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems

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In this paper a new microdevice for on-chip separation of microparticles is presented, in which a micromachined silicon nitride membrane structure is bonded with a glass substrate and then PZT plates are bonded to the silicon and glass substrates to excite the microdevice into vibration. Due to the energy coupling, silicon nitride membranes are excited into vibration as well, generating an ultrasonic standing wave field below the membranes, for which we can use it to separate microparticles within the fluids. In the paper, we start from the radiation force analysis and then design and fabricate the practical microdevice, and use finite element method in ANSYS to analyze its separation performance.

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Finite element modeling of ultrasonic separation at the microscale

Cited by 5 publications

References 4 publications

Theoretical and Experimental Analyses of Particle Trapping in a Capillary Tube Using a Flexural Acoustic Wave

Theoretical and Experimental Analyses of Particle Trapping in a Capillary Tube Using a Flexural Acoustic Wave

Prediction of retention times and peak widths in temperature-programmed gas chromatography using the finite element method

Design and Fabrication of An Ultrasonic Microdevice for Microparticles Separation

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