title: Effects of fluid viscosity on a moving sonoluminescing bubble.
abstract: Based on the quasi-adiabatic model, the parameters of the bubble interior for a moving single bubble sonoluminescence in water, adiponitrile, and N-methylformamide are calculated for various fluid viscosities. By using a complete form of the hydrodynamic force, the bubble trajectory is calculated for a moving single bubble sonoluminescence (m-SBSL). It is found that as the fluid viscosity increases, the unique circular path changes to an ellipsoidal and then linear form and along this incrementally increase of viscosity the light intensity increases. By using the Bremsstrahlung model to describe the bubble radiation, gradual increase of the viscosity results in brighter emissions. It is found that in fluids with higher viscosity the light intensity decreases as time passes.
authors.affiliation: Department of Physics, Sharif University of Technology, 11365-91 Tehran, Iran. sadighi@sharif.ir
authors.forename: Rasoul
authors.initials: R
authors.lastname: Sadighi-Bonabi
authors.forename: Mona
authors.initials: M
authors.lastname: Mirheydari
authors.forename: Nastaran
authors.initials: N
authors.lastname: Rezaee
authors.forename: Homa
authors.initials: H
authors.lastname: Ebrahimi
mesh_terms: D000162:Acoustics; D005740:Gases; D057446:Hydrodynamics; D008027:Light; D008962:Models, Theoretical; D014783:Viscosity
chemical_list: D005740:Gases