Transport optimization of coupled flashing ratchets in viscoelastic media

2017 ◽  
Vol 479 ◽  
pp. 84-90 ◽  
Author(s):  
Hai-Yan Wang ◽  
Jing-Dong Bao
Keyword(s):  
Viscoelastic Media ◽  
Flashing Ratchets

Computer simulations of a viscoelastic media heating by standing cylindrical ultrasound waves

2020 ◽  
Vol 561 (1) ◽  
pp. 65-68
Author(s):  
S. A. Shcherbinin ◽  
E. I. Petrova ◽  
N. A. Kolpacheva ◽  
A. N. Reznichenko ◽  
A. N. Rybyanets
Keyword(s):  
Computer Simulations ◽  
Ultrasound Waves ◽  
Viscoelastic Media

scholarly journals Theory of Swimming Filaments in Viscoelastic Media

2007 ◽  
Vol 99 (25) ◽  
Author(s):  
Henry C. Fu ◽  
Thomas R. Powers ◽  
Charles W. Wolgemuth
Keyword(s):  
Viscoelastic Media

Finite-Difference Modeling and Characteristics Analysis of Love Waves in Anisotropic-Viscoelastic Media

2021 ◽  
Author(s):  
Shichuan Yuan ◽  
Zhenguo Zhang ◽  
Hengxin Ren ◽  
Wei Zhang ◽  
Xianhai Song ◽  
...  
Keyword(s):  
Finite Difference ◽  
Phase Velocity ◽  
Velocity Dispersion ◽  
Love Waves ◽  
Velocity Anisotropy ◽  
Viscoelastic Media ◽  
Phase Velocities ◽  
Phase Velocity Dispersion ◽  
Anisotropic Elastic ◽  
Attenuation Anisotropy

ABSTRACT In this study, the characteristics of Love waves in viscoelastic vertical transversely isotropic layered media are investigated by finite-difference numerical modeling. The accuracy of the modeling scheme is tested against the theoretical seismograms of isotropic-elastic and isotropic-viscoelastic media. The correctness of the modeling results is verified by the theoretical phase-velocity dispersion curves of Love waves in isotropic or anisotropic elastic or viscoelastic media. In two-layer half-space models, the effects of velocity anisotropy, viscoelasticity, and attenuation anisotropy of media on Love waves are studied in detail by comparing the modeling results obtained for anisotropic-elastic, isotropic-viscoelastic, and anisotropic-viscoelastic media with those obtained for isotropic-elastic media. Then, Love waves in three typical four-layer half-space models are simulated to further analyze the characteristics of Love waves in anisotropic-viscoelastic layered media. The results show that Love waves propagating in anisotropic-viscoelastic media are affected by both the anisotropy and viscoelasticity of media. The velocity anisotropy of media causes substantial changes in the values and distribution range of phase velocities of Love waves. The viscoelasticity of media leads to the amplitude attenuation and phase velocity dispersion of Love waves, and these effects increase with decreasing quality factors. The attenuation anisotropy of media indicates that the viscoelasticity degree of media is direction dependent. Comparisons of phase velocity ratios suggest that the change degree of Love-wave phase velocities due to viscoelasticity is much less than that caused by velocity anisotropy.

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