Applicability of time-average fluid holography for analysis of propagating waves

Ragulskis, Minvydas; Palevičius, Arvydas; Fedaravičius, Algimantas; Ragulskis, L.

doi:10.1117/1.2080747

Cited by 2 publications

(1 citation statement)

References 12 publications

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“…It illuminates the holographic film interfering with the object beam. The phase of the light from the laser beam, ⌿ ͑x , y , t͒, can be expressed as 12,23 ⌿͑x,y,t͒ = 2 ͵ ͓n 0 − n flow ͑x,y,z,t͔͒ dz,…”

Section: Holographic Interferometry Of Fluidsmentioning

confidence: 99%

Generalized Abel transform for the analysis of fluid vibration in a tube

Palevičius¹

2007

Opt. Eng

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Fluid vibrations in axisymmetric geometry according to the first harmonic in the circumferential direction are analyzed. This problem has a practical application in the analysis of transverse vibrations of fluid in an axisymmetric pipe. The numerical model is developed using finiteelement techniques in axisymmetric geometry. Irrotational motions of ideal compressible fluid are analyzed. The finite-element model of the system is based on the approximation of nodal displacements via the shape functions. Thus the field of the amplitudes of the circumferential variation of the volumetric strain is calculated, exploiting conjugate approximation techniques. Obtained volumetric strains are used for the numerical construction of the interference pattern of the vibrating fluid. For this purpose the Abel transform, which is usually exploited in axisymmetric problems, is generalized for problems with circumferential variation of displacements. The obtained interference patterns are used in hybrid experimental-numerical procedures and help to interpret experimental results.

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Section: Holographic Interferometry Of Fluidsmentioning

confidence: 99%

Generalized Abel transform for the analysis of fluid vibration in a tube

Palevičius¹

2007

Opt. Eng

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Methodology for identification of liquid concentration in the periodic microstructures applying numerical-experimental laser interferometric methods

Janušas¹,

Palevičius²

2018

Vib. proced.

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The investigation of the high frequency vibrations of the fluid is an important problem in the design of microfluidic devices (periodic microstructures). Laser interferometric methods such as time average holography, high speed double expose holography or laser light diffraction allow to do analysis of high speed fluid flow and dosing or vibration of micro components used in biological and chemical microsystems. Methodology for identification of liquid concentration in the periodic microstructures applying numerical-experimental laser interferometric methods is presented in this paper.

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Applicability of time-average fluid holography for analysis of propagating waves

Cited by 2 publications

References 12 publications

Generalized Abel transform for the analysis of fluid vibration in a tube

Generalized Abel transform for the analysis of fluid vibration in a tube

Methodology for identification of liquid concentration in the periodic microstructures applying numerical-experimental laser interferometric methods

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