normal displacement boundary condition  (COMSOL Inc)

Journal: Biomedical Microdevices

Article Title: A comparative analysis of low intensity ultrasound effects on living cells: from simulation to experiments

doi: 10.1007/s10544-022-00635-x

Figure Lengend Snippet: Some of the parameters used in the simulation. The ones related to water, polystyrene and air are referred to a temperature of 298.15 °K. The polystyrene attenuation coefficient was determined from the formula present in Reference (Takagi et al. 2007 ) and by using the values reported by some of us and by other authors (Spigarelli et al. 2020 ; Tiong et al. 2017 ; Lei et al. 2013 ). In the calculation of the air acoustic impedance, the speed of sound in the air and the air density have been taken respectively from the work of Dhiren M Joshi and Shih (Shih and Shih 2019 ; Joshi n.d. )

Article Snippet: The sinusoidal displacement generated by the oscillating US transducer at the bottom basis of the fluid was modeled by adding the Normal Displacement boundary condition (Comsol ) (Eq. ) at the domain bottom surface: the displacement amplitude (L D ), inserted on the right-hand side of the equation, was determined from the intensity value of the incident wave to the system ( \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${I}_{0}$$\end{document} I 0 ), defined according to Eq. (The Acoustic Bubble ).

Techniques: Viscosity

Journal: Biomedical Microdevices

Article Title: A comparative analysis of low intensity ultrasound effects on living cells: from simulation to experiments

doi: 10.1007/s10544-022-00635-x

Figure Lengend Snippet: Average acoustic density and acoustic pressure amplitude computed on the three considered vertical planes and at different US power densities in input from the transducer

Article Snippet: The sinusoidal displacement generated by the oscillating US transducer at the bottom basis of the fluid was modeled by adding the Normal Displacement boundary condition (Comsol ) (Eq. ) at the domain bottom surface: the displacement amplitude (L D ), inserted on the right-hand side of the equation, was determined from the intensity value of the incident wave to the system ( \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${I}_{0}$$\end{document} I 0 ), defined according to Eq. (The Acoustic Bubble ).

Techniques: