Difference between revisions of "Griffith correlation"

Revision as of 16:07, 27 March 2017

The Griffith correlation is an empirical correlation which defines:

The bubble flow exist when:

\frac{q_g}{q_g + q_L} < L_B

^[1]

L_B = 1.071 - 0.2218 \frac{(v_g+v_L)^2}{D}

with the limit

L_B >= 0.13

^[1]

The gas holdup:

H_g = \frac{1}{2}\ \left ( 1 + \frac{v_g+v_L}{v_s} - \sqrt{ \left ( 1 + \frac{v_g+v_L}{v_s} \right )^2 - 4 \frac{v_g}{v_s}} \right )

^[1]

↑ ^1.0 ^1.1 ^1.2 Cite error: Invalid <ref> tag; no text was provided for refs named Orkiszewski

@@ Line 10: / Line 10: @@
 :<math> \frac{q_g}{q_g + q_L} < L_B </math><ref name= Orkiszewski />
-:<math> L_B = 1.071 - 0.2218 \frac{(v_g+v_L)^2}{D}</math><ref name= Orkiszewski />
+:<math> L_B = 1.071 - 0.2218 \frac{(v_g+v_L)^2}{D}</math> with the limit <math> L_B >= 0.13 </math><ref name= Orkiszewski />
 The gas holdup: