fluid_mechanics

A ppendix B
Physical Properties of Fluids
4.0
2.0
1.0
8
6
4
Glycerin
Castor oil
2
1 × 10 –1 8
6
4
2
SAE 30W oil
SAE 10W-30 oil
SAE 10W oil
µ, Dynamic viscosity, N • s/m 2
1 × 10 –2 8
6
4
2
1 × 10 –3 8
6
Kerosene
Octane
Mercury
Carbon tetrachloride
4
Heptane
2
Water
1 × 10 –4 8
6
4
2
Helium
Air
Carbon dioxide
Methane
1 × 10 –5 8
6
Hydrogen
–20 0 20 40 60 80 100 120
Temperature, °C
F I G U R E B.1 Dynamic (absolute) viscosity of common fluids as a function
of temperature. To convert to BG units of lb sft 2 multiply N sm 2 by 2.089 10 2 .
(Curves from R. W. Fox and A. T. McDonald, Introduction to Fluid Mechanics, 3rd Ed.,
Wiley, New York, 1985. Used by permission.)
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