It was shown that gas holdup increases with the increasing of gas velocity, gas holdups among the convergence_divergence d.

Flow parameters such as phase holdup and pressure fluctuation,as well as their axial and radial distributions were measured at different superficial phase velocities.

This article introduces the hydrodynamic characteres in Slurry Bubble Column Reactor, such as flowing pattern,phase holdup,size and distribution of bubble,and the residence time of bubble,as wellas the influence of operating conditions on hydrodynamic character in SBCR.

This review discusses systematically the presena stett of the art of gas-liquid-solid three-phase fluidized beds, including flow regime, phase holdups, mass transfer between phases, mixing, heat transfer, bubble behaviour etc.

Soft measurement method of phase volume fraction for oil/water two-phase flow;

An analyzing formulation of the radiating counting errors and the phase volume fraction errors affected by the dynamic changes in two-phase media is deduced, and the relationship among the dynamic error, the radiation source and the diameter of oil pipe is analyzed.

A fast multi-channel analyzer and method for the phase volume fraction detection using (~(241)Am)-Ag source is introduced in this paper, which can exactly discriminate the dual energy rays and count quickly the transmitted dual energy photons.

This article describes the principle and the mathematical method of using the dual-energy gamma-ray attenuation to measure the phase fraction in multiphase flow.

Profiles of gas holdup in the inner loop of an airlift reactor with external liquid circulation;

Influence of motionless mixer on gas holdup and dispersed phase holdup;

Experimental study on average gas holdup in new pressurized bioreactor;