DiffusivityUnits Type ⤴
Used for kinematic viscosity (also known as momentum diffusivity) and thermal diffusivity. The Kinematic Viscosity of a fluid is the dynamic viscosity divided by the fluid density. In heat transfer analysis, thermal diffusivity (usually denoted ? but a, ?, and D are also used) is the thermal conductivity divided by density and specific heat capacity at constant pressure. It measures the ability of a material to conduct thermal energy relative to its ability to store thermal energy.
Term
diffusivity
Category
Fluid Mechanics
Provenance
new for ODM2
Provenance Uri

Note
Encompases both kinematic viscosity and thermal diffusivity
Default Unit
Square meter per second (m^2/sec)
Dimension Symbol
L2T1
Dimension Length
0
Dimension Mass
2
Dimension Time
0
Dimension Current
1
Dimension Temperature
0
Dimension Amount
0
Dimension Light
0