Gas-Liquid Systems

The performance and structural integrity of gas–liquid systems can be greatly enhanced using ANSYS engineering simulation for gas liquid systems. Engineers trust ANSYS fluid mechanics software – CFD for multiphase flows - to model gas liquid systems with or without heat and mass transfer/reaction in a broad range of applications in which fluid and gases are transported or processed.


Argon bubble after deformation and breakup in molten steel bath.
Image courtesy of Stellenbosh University

Changes in vessel design may necessitate geometrical changes to distributors, baffles, vessel walls, splitter plates, inlet and outlet locations, draft tubes, recirculation loops, manifolds, distribution plates, and other components. The task of gas–liquid process and vessel design is a particularly complex engineering challenge.

Engineers are also tasked with designing and improving gas–liquid contacting systems, which transfer mass, heat and momentum between phases subject to physical and chemical equilibrium. The challenge of the process equipment designer is to achieve appropriate transfer with minimal energy and capital investment. Examples of typical mass transfer devices are distillation, flashing, absorption, stripping, evaporation, humidification, dehumidification and spray drying.

ANSYS engineering simulation for gas liquid system can help engineers overcome these challenges through computational fluid dynamics (CFD) and structural analysis to account for thermal stresses, vibration, fatigue, reactor performance, distribution of gases or liquids for various components, and mechanical design. ANSYS structural mechanics simulation coupled for CFD for gas liquid handling devices enables engineers to study multiphase distribution, heat and mass transfer calculations, chemical kinetics and reaction of gas–liquid reactions as well as performed coupled calculation of vibration, thermal stresses, structural fatigue and flow induced vibration.

Applications for ANSYS software include:

  • Design of plate columns, packed columns and bubble columns
  • Loop reactor and bioreactor development
  • Gas-in-liquid dispersion studies
  • Emulsion design
  • Foam analyses
  • Surface aeration studies
  • Droplet separation studies
  • Mist eliminator design
  • Impingement separation studies