@wikipedia


Synonym:
 Throttling Temperature effect = Joule–Thomson effect


Fluid
 temperature change (warming or cooling) under the throttling process.

The value of temperature effect  is proportional to pressure drop :

\delta T = \epsilon_{JT} \cdot \delta P

where

is Joule–Thomson coefficient


In Fluid Dynamics the 
Joule–Thomson effect  translates to the following equation:

 \frac{\partial T}{\partial t} = \epsilon_{JT} \cdot {\bf u} \cdot \nabla P

where

time

flow velocity

vector differential operator



See also


Physics / Thermodynamics / Thermodynamic process Adiabatic Process / Throttling process

Joule–Thomson coefficient ]