| dc.description.abstract | Two-phase flow is found in daily life as well as in the field of industry, which consists of
three phases, namely liquid-solid, gas-liquid, and gas-solid. The fundamental
characteristics of two-phase flow include flow pattern and flow pattern maps, void
fraction, and pressure gradient. Some problems related to the pressure gradient
comprise of the superficial velocity and viscosity of fluid mixture flow. This research
discussed the significant effect of liquid viscosity in two-phase flow pressure gradient
to find out the influence of liquid velocity, and also both superficial gas velocity (JG) and
liquid superficial velocity (JL) on the pressure gradient. This research used a capillary
pipe with a diameter of 1.6 mm. The fluid used was a gas-water mixture and glycerin
with a concentration of 40%, 50%, 60%, and 70%. The pressure drop was measured
using a pressure transducer and recorded by data acquisition. The result showed that
the value of the two-phase flow pressure gradient was affected significantly by the
number of liquid viscosity. The higher liquid viscosity leads to an increase in the twophase
flow pressure gradient. The pressure gradient was also effected either by liquid
or gas superficial velocity, namely, the higher the superficial velocity of either by liquid
or gas, the higher the pressure gradient. | en_US |
