Who can tell me what determine the fluid's viscosity?
2007-02-16 01:44:38 · 3 answers · asked by chengzhao zhang 1 in Science & Mathematics ➔ Physics
Viscosity is friction inside the fluid. Il's a friction that's created between many layers of fluid when these layers move ( while some layers move faster then other). Imagine several sheets of paper one on top of the other and if some of these paper sheets are moving at not equal speed or to the various directions at one time the friction is caused between them. The same is in fluids. And the stronger is the bond between the molecules of the fluid the stornger is inner friction ( the greater viscosity). Solids can sometimes be interpreted as liquids with great viscosity ( for example glass ) So viscosity is mainly determined by the bond between the molecules of the fluid, if the bond is stong we have high viscosity (for example amber, honey) and if the bond is week we have low viscosity ( like water ).
2007-02-16 02:09:53 · answer #1 · answered by Nooto 1 · 0⤊ 0⤋
viscosity is a measure of a material's rate of flowing or similar to fluidity. the things that determine the viscosity is its content, fluids and smooth materials. Viscometer is the instrument to detrermine the viscosity.
2007-02-16 01:51:25 · answer #2 · answered by komatsu 2 · 1⤊ 0⤋
viscosity is the internal resistance shown by fluids to their flow... or the friction between different layers of the fluid.
In general it depends on the temperature and pressure.
For gases, Viscosity is independent of pressure; and
Viscosity increases as temperature increases.
For liquids, Viscosity is independent of pressure (except at very high pressure);Viscosity tends to fall as temperature increases
2007-02-16 02:04:27 · answer #3 · answered by beachblue99 4 · 0⤊ 0⤋