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Table 3 Parameters used in circular model calculations

From: A theoretical model for capacitance measurement of liquid films in an annular flow

Parameter

Values used

r t (tool radius)

21 mm

r p (electrode radial position)

65 mm, 68 mm, 72 mm

r l (gas-liquid boundary radius)

74–76 mm in steps of 0.2 mm

r c (casing radius)

76 mm

V 0

1 V

ε g

1

ε L

2.2 (oil), 89 (water), >100 (salt water)

L (length of electrode along z-axis)

20 cm