Related Resources: heat transfer
Dynamic Viscosity
Heat Transfer Engineering and Design
Dynamic Viscosity
In fluid flow and heat transfer studies, the ratio of dynamic viscosity to density appears frequently.
Dynamic viscosity is a constant of proportionality µ , whose unit is kg / m · s (or equivalently, N · s/m2, or Pa · s, or poise = 0.1 Pa · s).
Dynamic Viscosity Air @ 1 atm vs Temperature
Dynamic Viscosity of Water @ 1 atm vs Temperature
|
Dynamic viscosities of some fluids
at 1 atm and 20°C (unless otherwise stated) |
|
|
Fluid
|
Dynamic Viscosity
µ, kg / m · s |
|
Glycerin:
|
|
|
-20°C |
134.0
|
|
0°C
|
12.1
|
|
20°C
|
1.49
|
|
40°C
|
0.27
|
|
Engine Oil
|
|
|
SAE 10W
|
0.10
|
|
SAE 10W30
|
0.17
|
|
SAE 30
|
0.29
|
|
SAE 50
|
0.86
|
|
Mercury
|
0.0015
|
|
Ethyl alcohol
|
0.0012
|
|
Water:
|
|
|
0°C
|
0.0018
|
|
20°C
|
0.0010
|
|
100°C (liquid)
|
0.0003
|
|
100°C (vapor)
|
0.000013
|
|
Blood, 37°C
|
0.0004
|
|
Gasoline
|
0.00029
|
|
Ammonia
|
0.00022
|
|
Air
|
0.000018
|
|
Hydrogen, 0°C
|
0.000009
|
Link to this Webpage:
© Copyright 2000 -
2024, by Engineers Edge, LLC
www.engineersedge.com
All rights reserved
Disclaimer |
Feedback
Advertising
| Contact
