How the speed of sound in a liquid depends on the viscosity?
Dear Galia,
In fresh water, sound speed is about 1497 m/s at 25 °C.
Cliq= (K/rho)0.5; where rho is the density and K is bulk modulus.
About role of viscosity, see http://iopscience.iop.org/0370-1301/66/5/303/pdf/0370-1301_66_5_303.pdf
I cannot answer to the influence of viscosity. But the sound speed in water is much more complex than c= (K/rho)^0.5. In fact the mixture of small volume fractions of air causes a dramatic lowering of the sound speed in water by nearly 3 orders of magnitude!
S. W. Kieffer (1977): Sound speed in liquid-gas mixtures: Water-air and water-steam. Journal of Geophysical Research Solid Earth and Planets, 182(20):2895–2904.
DOI: 10.1029/JB082i020p02895
I have bubbly liquid(glycerol-air), but need know speed of sound pure liquid(glycerol, viscosity is equal=110mPa*s)
If I understand your issue, the speed of sound is largely determined by the content of air bubbles and their size. Do you have any information about this?
In this problem i need know speed of sound Cl for pure liquid (glycerol viscosity=110mPa*s.Now I consider liquid is pure
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