Introduction
• Gas–liquid mixing plays a critical role in determining reaction performance, mass transfer efficiency, and product
quality in a wide range of chemical and biochemical processes. Efficient gas dispersion ensures adequate interfacial
area for mass transfer, directly influencing reaction rates, conversion levels, and overall process reliability.
• In industrial practice, it is often assumed that increasing agitator speed enhances turbulence, improves gas dispersion,
and leads to better mixing performance. While higher RPM increases energy input, it does not necessarily result in
effective gas–liquid contact. In many cases, excessive agitation can lead to undesirable hydrodynamic effects such as
vortex formation, gas entrainment, and non-uniform flow patterns, ultimately reducing mixing efficiency.
• The performance of gas–liquid systems is governed by a complex interaction between impeller design, reactor
geometry, operating conditions, and fluid properties. Parameters such as gas hold-up, bubble size distribution,
circulation patterns, and mass transfer coefficient (kLa) are strongly influenced by these factors and must be
evaluated together rather than relying solely on agitation speed.
• VisiMix provides an advanced simulation platform that integrates hydrodynamics, reactor configuration, and
operating conditions into a single predictive framework. By accurately capturing real mixing behavior, VisiMix enables
engineers to evaluate gas distribution, identify optimal operating windows, and make informed scale-up
decisions while minimizing experimental trials.