Osciliation of a cylindrical body close to a plane boundary

Ryabukha, Yu. N.

doi:10.1007/bf00894951

Cited by 3 publications

(2 citation statements)

References 2 publications

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“…In particular, for sound wave propagation in a multiplyconnected medium, there is an acoustical interaction between the surfaces due to cross scattering. Many researchers have studied the mutual interaction between cylindrical objects subjected to a primary acoustic field [1][2][3][4][5][6][7][8][9][10][11][12]. Acoustic interaction of two pulsating cylinders in an ideal fluid is considered in [4].…”

Section: Introductionmentioning

confidence: 99%

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Acoustic radiation from a cylindrical source close to a rigid corner

Hasheminejad¹,

Azarpeyvand

2005

Z. angew. Math. Mech.

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Acoustic radiation of an infinite cylindrical surface vibrating with an arbitrary, time-harmonic surface velocity distribution, while positioned within an acoustic quarterspace with rigid boundary, is analyzed in an exact fashion using the classical method of separation of variables. The formulation utilizes the appropriate wave-field expansions and the method of images along with the translational addition theorem for cylindrical wave functions to develop a closed-form solution in form of infinite series. The analytical results are illustrated with numerical examples in which the cylindrical source, vibrating in the pulsating (n = 0) and the transversely oscillating (n = 1) modes, is positioned near the rigid boundary of an air-filled quarterspace. Subsequently, the basic acoustic field quantities such as the modal acoustic radiation impedance load and the sound radiation intensity distribution are evaluated for representative values of the parameters characterizing the system.

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Section: Introductionmentioning

confidence: 99%

“…Scattering of acoustic waves from two parallel cylinders in a viscous fluid is analyzed in [5]. Acoustic field of an oscillating cylindrical body close to a rigid screen is investigated in [6]. Transient interaction of two thin-walled cylindrical piezoelectric ceramic underwater transducers is studied in [7].…”

Section: Introductionmentioning

confidence: 99%

Acoustic radiation from a cylindrical source close to a rigid corner

Hasheminejad¹,

Azarpeyvand

2005

Z. angew. Math. Mech.

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Energy distribution and radiation loading of a cylindrical source suspended within a nonconcentric fluid cylinder

Hasheminejad

Azarpeyv

2003

Acta Mechanica

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Induced acoustic radiation force and torque on a pulsating cylindrical source near a planar rigid half-space boundary

Mitri¹

2018

Journal of Applied Physics

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In this contribution, the phenomenon of wall-induced acoustic radiation force and torque on an active cylindrically radiating acoustic source, undergoing axisymmetric or asymmetric harmonic vibrations (i.e., using a superposition of different vibrational source modes) near a flat rigid boundary in a non-viscous fluid is demonstrated using the modal expansion method, the translational addition theorem, and the method of images. These physical phenomena arise due to the multiple interactions with the boundary. Assuming axisymmetric or asymmetric modal oscillations of the source, conditions are found where the longitudinal and transversal radiation force functions as well as the axial torque component vanish, achieving complete translational or rotational motion suppression of the pulsating source. These components also take positive or negative values, depending on the source size and distance from the flat rigid wall, suggesting pushing or pulling effects towards the boundary, and possible source rotation clockwise or counter-clockwise. The analytical formalism developed here can be helpful in predicting emergent phenomena related to applications in underwater acoustics, particle manipulation of active carriers or ultrasound contrast agents located near a boundary, and possibly other applications in fluid dynamics and related topics.

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Osciliation of a cylindrical body close to a plane boundary

Cited by 3 publications

References 2 publications

Acoustic radiation from a cylindrical source close to a rigid corner

Acoustic radiation from a cylindrical source close to a rigid corner

Energy distribution and radiation loading of a cylindrical source suspended within a nonconcentric fluid cylinder

Induced acoustic radiation force and torque on a pulsating cylindrical source near a planar rigid half-space boundary

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