The Rise of Second Harmonics in Forced Oscillation of Gas Bubbles in Thixotropic Fluids

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概要

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• In the present work, nonlinear acoustic oscillation of a single spherical gas bubble immersed in an unbounded thixotropic fluid is studied numerically. Using Moores structural model as the constitutive equation of the liquid surrounding the bubble, the general Rayleigh-Plesset integro-differential equation, which governs bubble dynamics, is solved numerically using the Gauss-Laguerre Quadrature (GLQ) method. It is shown that at sufficiently high pressure amplitudes, typical of medical ultrasound applications, a second harmonics may be observed in the bubbles response.

• 一般社団法人　日本レオロジー学会の論文
• 2011-06-15

著者

• SADEGHY Kayvan

  Department of Mechanical Engineering, University of Tehran

• Sadeghy Kayvan

  Department Of Mechanical Engineering College Of Engineering University Of Tehran

• Amini-kafiabad Hossein

  Department Of Mechanical Engineering Mcgill University

• AHMADPOUR Ali

  Department of Mechanical Engineering, University of Tehran

• SAMADI Jila

  Department of Mechanical Engineering, University of Tehran

• Samadi Jila

  Department Of Mechanical Engineering University Of Tehran

• Ahmadpour Ali

  Department Of Mechanical Engineering University Of Tehran

• Sadeghy Kayvan

  Department Of Mechanical Engineering University Of Tehran

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• MHD Flow of Power-Law Fluids in Locally-Constricted Channels
• The Rise of Second Harmonics in Forced Oscillation of Gas Bubbles in Thixotropic Fluids

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