Open AccessDamping by bulk and shear viscosity for confined acoustic phonons of a spherical virus in water
Author(s) -
D. B. Murray,
Lucien Saviot
Publication year - 2007
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/92/1/012036
Subject(s) - phonon , viscosity , shear (geology) , volume viscosity , shear viscosity , materials science , acoustics , physics , condensed matter physics , mechanics , classical mechanics , composite material
International audienceA sphere-like virus in water is modeled as a homogeneous isotropic elastic continuum sphere in contact with an infinite viscous compressible Newtonian fluid. The frequencies and damping of the confined vibrational modes of the sphere are calculated for the material parameters of a virus in water. While the effects of viscosity are found to be negligible for a virus-like sphere of macroscopic size, for nanoscale viruses both the frequency and damping of the vibrational modes are significantly affected by the viscosity of the water. Furthermore, both shear viscosity and bulk viscosity play an important role