interstitial velocity

in chromatography
https://doi.org/10.1351/goldbook.I03121
The linear velocity of the @M03952@ inside a packed column calculated as the average over the entire cross section. This quantity can, under idealized conditions, be calculated from the equation: \[u=\frac{F}{\varepsilon_{\text{I}}}\] where \(F\) is the @N04177@ and \(\varepsilon_{\text{I}}\) the @I03120@
Source:
Orange Book, 2nd ed., p. 102 [Terms]