Effects of non-Newtonian liquid properties on pressure drop during horizontal gas-liquid flow

Abstract

An experimental study was performed on two-phase pressure drop of gas/non-Newtonian liquid systems in co-current horizontal flow. The effects of superficial velocities and polymer concentrations on two-phase pressure drop were investigated. A total of 180 experimental tests were conducted for the following conditions: superficial liquid velocity from 0.18 m/s to 1.42 m/s, and superficial gas velocity from 0.13 m/s to 2.59 m/s. The results show that the drag reduction will occur when the value of flow behavior index, n, is smaller than 0.6, and the lower the value of n is, the greater the effect of drag reduction will be.

Keywords

gas-liquid flow / pressure drop / drag reduction / non-Newtonian liquid

References

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