Effects of Diameters on Countercurrent Flow Limitation at a Square Top End in Vertical Pipes

Table 3

Effects of parameters on CCFL at square top end comparing with conditions of the square top end and water level at midlevel for D = 30-100 mm (“Medium” is uncertainty range of about 5-10 % for , for “Large” different correlation is recommended, bold area; database used for (9)).

D [mm]	19-25		30-38	44-100	140-250
Diameter; (Square end)	Large		Small (base case)		Medium
Protruding end		Small		Medium	Large
Low water level		Large		Small